A coupling is a device used to connect two shafts together for transmitting power. Couplings come in two main types: rigid and flexible. Rigid couplings provide a precise connection between shafts and maximize performance, while flexible couplings allow for some misalignment. Careful selection, installation, and maintenance of couplings can reduce costs and downtime.
Selecting the Right Gear Coupling for your ApplicationDesign World
This webinar will place the spotlight on gear couplings with a focus on factors to consider when making a coupling selection for your application. Topics covered will include basic sizing, application criteria, coupling design features and the variety of coupling types available.
When specifying a coupling for a mechanical system, many factors are involved in the decision. Andy Lechner of R +W America, Ross Rivard of Ringfeder and Bobby Watkins of Ruland Manufacturing Co. will each take some time to help us gain a better understanding of when the different types of couplings make the most sense for an application.
This document provides information on the Steelflex grid coupling produced by Falk. It highlights key features such as longer life through hardened and shot peened grids, extended maintenance intervals of 5 years with the use of Falk LTG grease, quick and easy replacement of just the grid component, and versatility with multiple designs available. The document includes specifications, dimensions, selection information and engineering data for Steelflex couplings.
The document discusses vibration monitoring techniques for detecting rolling element bearing failures. It describes the different frequency regions of vibrations produced by bearings, including the rotor vibration region, prime spike region, and high frequency region. It then explains different transducer systems that can be used, including REBAM probes that directly measure bearing vibrations and casing vibration measurements. The key conclusions are that rotor vibration and prime spike measurements from permanent probes or casing sensors are the primary techniques for monitoring bearings and determining when replacement is needed, while high frequency measurements can provide early failure indications but require closer monitoring due to changing readings.
This document summarizes the mounting of machine elements for a concrete mixer. It discusses the main components of a concrete mixer including bearings, worm gears, drums, yokes, sprockets, and frames. It then focuses on the mounting of bearings and gears. For bearings, it describes the types of bearings and different mounting methods, including both bearings fixed or one floating. For gears, it outlines different attachment methods like using fixing screws, keys and circlips, cotter pins, and locking assemblies. Finally, it provides an example of selecting bearings from a manufacturer's catalog.
The document summarizes information about locomotive shafts and axles used in electric locomotives maintained at the Electric Loco Shed in Kanpur, India. It describes the key components of shafts and axles, the types of locomotives maintained (WAP4 and WAG7), their main characteristics, and common shaft failure modes seen (broken teeth, seized bearings). It emphasizes the importance of surface finish, material properties, and inspections to prevent shaft failures from stress concentration.
The document discusses the design, analysis, and optimization of a disc brake rotor for a Bajaj Pulsar 150 motorcycle using finite element analysis. It summarizes the existing ventilated disc brake rotor design and proposes a new slotted design with holes. Both designs are modeled in CATIA and analyzed in ANSYS for static structural stresses and transient thermal performance using various materials. The analysis aims to determine the material that provides the best performance for the proposed design based on von Mises stresses, heat dissipation, and deformation.
Sliding Contact Bearing Theory Prof. Sagar DhotareSagar Dhotare
In present ppt covers following points:
Introduction of Sliding Contact Bearings
Classification
Applications
Different lubrications systems
Hydrodynamic bearing concept and working
Comparison between sliding and rolling contact bearings
PETROFF’S EQUATION For Hydrodynamic Journal Bearing
Dimensionless Parameters used in SCB
Design procedure for Hydrodynamic Journal Bearing
Selecting the Right Gear Coupling for your ApplicationDesign World
This webinar will place the spotlight on gear couplings with a focus on factors to consider when making a coupling selection for your application. Topics covered will include basic sizing, application criteria, coupling design features and the variety of coupling types available.
When specifying a coupling for a mechanical system, many factors are involved in the decision. Andy Lechner of R +W America, Ross Rivard of Ringfeder and Bobby Watkins of Ruland Manufacturing Co. will each take some time to help us gain a better understanding of when the different types of couplings make the most sense for an application.
This document provides information on the Steelflex grid coupling produced by Falk. It highlights key features such as longer life through hardened and shot peened grids, extended maintenance intervals of 5 years with the use of Falk LTG grease, quick and easy replacement of just the grid component, and versatility with multiple designs available. The document includes specifications, dimensions, selection information and engineering data for Steelflex couplings.
The document discusses vibration monitoring techniques for detecting rolling element bearing failures. It describes the different frequency regions of vibrations produced by bearings, including the rotor vibration region, prime spike region, and high frequency region. It then explains different transducer systems that can be used, including REBAM probes that directly measure bearing vibrations and casing vibration measurements. The key conclusions are that rotor vibration and prime spike measurements from permanent probes or casing sensors are the primary techniques for monitoring bearings and determining when replacement is needed, while high frequency measurements can provide early failure indications but require closer monitoring due to changing readings.
This document summarizes the mounting of machine elements for a concrete mixer. It discusses the main components of a concrete mixer including bearings, worm gears, drums, yokes, sprockets, and frames. It then focuses on the mounting of bearings and gears. For bearings, it describes the types of bearings and different mounting methods, including both bearings fixed or one floating. For gears, it outlines different attachment methods like using fixing screws, keys and circlips, cotter pins, and locking assemblies. Finally, it provides an example of selecting bearings from a manufacturer's catalog.
The document summarizes information about locomotive shafts and axles used in electric locomotives maintained at the Electric Loco Shed in Kanpur, India. It describes the key components of shafts and axles, the types of locomotives maintained (WAP4 and WAG7), their main characteristics, and common shaft failure modes seen (broken teeth, seized bearings). It emphasizes the importance of surface finish, material properties, and inspections to prevent shaft failures from stress concentration.
The document discusses the design, analysis, and optimization of a disc brake rotor for a Bajaj Pulsar 150 motorcycle using finite element analysis. It summarizes the existing ventilated disc brake rotor design and proposes a new slotted design with holes. Both designs are modeled in CATIA and analyzed in ANSYS for static structural stresses and transient thermal performance using various materials. The analysis aims to determine the material that provides the best performance for the proposed design based on von Mises stresses, heat dissipation, and deformation.
Sliding Contact Bearing Theory Prof. Sagar DhotareSagar Dhotare
In present ppt covers following points:
Introduction of Sliding Contact Bearings
Classification
Applications
Different lubrications systems
Hydrodynamic bearing concept and working
Comparison between sliding and rolling contact bearings
PETROFF’S EQUATION For Hydrodynamic Journal Bearing
Dimensionless Parameters used in SCB
Design procedure for Hydrodynamic Journal Bearing
Bearing failure and its Causes and Countermeasuresdutt4190
A brief review about bearing and failure of its various parts due to other possibilities than design such as manufacturing, improper service and handling and other similar aspects.
This document discusses gear failure in electric locomotives. It begins with an introduction to electric locomotive sheds in India and describes the operation and components of electric locomotives. It then defines gears and classifies different types of gears. The main types of gear failure are described, including wear, corrosion, abrasion, pitting, scoring, and fracture. Methods for analyzing gear failures, such as dye penetration testing, metallurgical analysis, and ultrasonic testing are also outlined. The document concludes by thanking those involved in the electric locomotive shed for their support and guidance.
This document summarizes a presentation on shafts and axles used in electric locomotives. It defines key components such as axles, shafts, gears, wheels, and traction motors. It then provides details on specific locomotives models WAP-4 and WAG-7 and their specifications. Finally, it lists and describes common failure conditions for components such as TM pinion teeth breaking, axle box bearing seizure, gear teeth breaking, and cracks in the motor suspension unit ribs.
The document discusses the design of a rigid flange coupling to transmit 250 N-m of torque between two coaxial shafts. It first sizes the shaft diameter as 25 mm. It then designs each component:
1) The hub is designed as a hollow shaft with outer diameter of 50 mm and length of 37.5 mm. Shear stress in the hub is calculated to be 10.86 MPa.
2) The key is sized at 10 mm wide, 8 mm thick, and 37.5 mm long. Shear and crushing stresses are calculated to be 53.3 MPa and 133.3 MPa respectively.
3) The flange is 12.5 mm thick with a shear
The document describes the design and analysis of a leadscrew. It includes objectives to design the leadscrew based on applied forces and stresses, model the component in PRO/E, and analyze it in ANSYS. It covers terminology, applications, screw jack design, modeling steps in PRO/E, static structural analysis in ANSYS under different loads, and results for deformation, shear stress, strain, and normal stress. The analysis found the leadscrew does not fail under the applied forces and shows satisfactory results for reduced load values.
Wrap spring clutches and brakes provide high torque in a compact package. They can be mechanically or electrically actuated and are factory assembled and tested. The document discusses various wrap spring product series including the DCB clutch brakes for single-position output and the SC spring clutch which can be mechanically actuated. It provides details on product specifications, dimensions, and part numbers.
A bearing is a device that supports load and reduces friction between moving parts. There are two main types: plain/slider bearings and rolling/anti-friction bearings. Rolling bearings use balls or rollers to create separation between surfaces and are more commonly used. Common bearing materials include metals, alloys, and some non-metals. Bearings must be properly selected, mounted, lubricated, and maintained to maximize their lifespan and prevent premature failure.
The document describes the J-DCB series of wrap spring clutch-brakes. The clutches have adjustable output stop positions with ±1/2° accuracy. They are available in clockwise or counterclockwise rotation with hub input and shaft output. Standard features include anti-overrun and anti-back functions to control output rotation. There are 8 standard models in stock with single or multi-stop solenoids. The clutches use springs and solenoids to control motion and stopping, with options to increase load capacity and life. Selection involves determining operating speed, load, shaft size, and solenoid type needed.
Bearing handbook for electric motor skfducnamtrinh
The document is a handbook for electric motor bearings from SKF that provides specifications and information about various bearing types. It includes speed ratings, dimensions, installation tips, lubrication recommendations, and other technical details for SKF deep groove ball bearings in their 6200 and 6300 series. The handbook aims to help users select, install, and maintain SKF bearings for optimal electric motor performance.
This document discusses various causes of bearing failure including excessive loads, overheating, brinelling, fatigue, contamination, lubricant failure, corrosion, misalignment, loose fits, and tight fits. For each cause, symptoms and recommended corrective actions are provided. The overall document serves to educate about common bearing failures and how to prevent or address them.
The document is a presentation on bearings created by Akash Panchal. It discusses the definition of a bearing, provides a brief history, and examines various types of bearings like ball bearings, roller bearings, plain bearings, and their functions. It also looks at bearing selection, arrangement, lubrication, and life calculation. The presentation contains several diagrams and is intended to provide an overview of bearings.
This document is the general catalogue for SKF, a manufacturer of bearings and related products. It provides an overview of the catalogue, noting it contains standard bearings and accessories. It also describes updates made to the technical section, including new models for determining friction and lubricant viscosity. The catalogue aims to match customer needs and make products available worldwide.
Carter Manufacturing Inc specializes in prototyping and manufacturing high precision bearings for both standard and specialized applicationsin industries such as chemical, food processing and industrial.To know more visit: http://www.carterbearings.co.uk/carter/cam-followers/
This document summarizes a presentation on improving wind turbine drivetrain bearing reliability. It discusses common bearing damage modes in the generator, gearbox, and main shaft and presents upgrades to address them including wear-resistant coatings, case carburization, improved geometries and materials. Specific enhancements are outlined for main shaft spherical roller bearings, planetary and high-speed gearbox bearings, and generator bearings. Test results of upgraded bearings show reduced wear and longer lifespans. The presentation emphasizes using condition monitoring and lubrication best practices to further improve bearing health and reliability.
This document provides an overview of rolling-contact bearings. It defines key terms like bearing life, load ratings, and reliability. It describes different types of ball and roller bearings and their applications. Formulas are presented for relating bearing load, life, and reliability based on catalog data. Methods for selecting bearings under combined radial and thrust loading conditions are also discussed.
This document discusses bearing selection for pumps. It explains that pump bearings often fail for reasons other than fatigue, such as improper loading. The key factors in selecting a bearing are the operating loads, temperatures, shaft fits, and speed. Bearings require a minimum thrust load to maintain proper ball tracking. Angular contact bearings with a higher contact angle require more thrust. A preload or clearance is used to ensure the minimum thrust load is met. The document provides guidance on selecting the appropriate bearing type for different pump applications and conditions.
The document discusses different types of bearings used in machines and their functions. It describes sliding contact bearings like hydrodynamic and hydrostatic bearings, and rolling contact bearings like ball and roller bearings. The key types of rolling contact bearings are explained as journal/sleeve bearings, thrust bearings, and guide bearings based on the direction of load and motion. Common applications of rolling contact bearings and their advantages are also summarized.
Design, Analysis and Manufacturing of Braking system for an Universal Terrain...EditorIJAERD
This document summarizes the design, analysis, and manufacturing of the braking system for a universal terrain vehicle. Key aspects of the braking system designed include hydraulic disc brakes, brake rotors made of SS410 steel, Vespa brake calipers, DOT4 brake fluid, a Maruti M800 tandem master cylinder, and a brake pedal with a 6:1 leverage ratio. Calculations were performed to analyze weight distribution, torque requirements, and dynamic weight transfer. The design was validated through testing, which showed the braking system could stop the vehicle within the required 15 feet from speeds up to 70 km/h.
Dokumen ini membahas tentang dial indikator, alat ukur mekanik yang digunakan untuk mengukur kebengkokan poros, kekocakan, dan kerataan. Dial indikator terdiri atas jarum panjang, jarum pendek, bidang sentuh, dan stem. Jarum panjang digunakan untuk mengukur nilai pergerakan sedangkan jarum pendek untuk menghitung putaran jarum panjang. Dial indikator dapat diaplikasikan untuk mengukur kerataan bidang
Transmisi berfungsi memindahkan putaran dan daya mesin ke roda belakang secara perlahan. Kopling manual memungkinkan pengemudi mengganti gigi secara manual, sedangkan kopling otomatis seperti fluida dan torque converter melakukannya secara otomatis. Penyebab kopling selip dan menggesek umumnya adalah masalah pada komponen kopling seperti plat, pegas, atau sistem hidroliknya.
Bearing failure and its Causes and Countermeasuresdutt4190
A brief review about bearing and failure of its various parts due to other possibilities than design such as manufacturing, improper service and handling and other similar aspects.
This document discusses gear failure in electric locomotives. It begins with an introduction to electric locomotive sheds in India and describes the operation and components of electric locomotives. It then defines gears and classifies different types of gears. The main types of gear failure are described, including wear, corrosion, abrasion, pitting, scoring, and fracture. Methods for analyzing gear failures, such as dye penetration testing, metallurgical analysis, and ultrasonic testing are also outlined. The document concludes by thanking those involved in the electric locomotive shed for their support and guidance.
This document summarizes a presentation on shafts and axles used in electric locomotives. It defines key components such as axles, shafts, gears, wheels, and traction motors. It then provides details on specific locomotives models WAP-4 and WAG-7 and their specifications. Finally, it lists and describes common failure conditions for components such as TM pinion teeth breaking, axle box bearing seizure, gear teeth breaking, and cracks in the motor suspension unit ribs.
The document discusses the design of a rigid flange coupling to transmit 250 N-m of torque between two coaxial shafts. It first sizes the shaft diameter as 25 mm. It then designs each component:
1) The hub is designed as a hollow shaft with outer diameter of 50 mm and length of 37.5 mm. Shear stress in the hub is calculated to be 10.86 MPa.
2) The key is sized at 10 mm wide, 8 mm thick, and 37.5 mm long. Shear and crushing stresses are calculated to be 53.3 MPa and 133.3 MPa respectively.
3) The flange is 12.5 mm thick with a shear
The document describes the design and analysis of a leadscrew. It includes objectives to design the leadscrew based on applied forces and stresses, model the component in PRO/E, and analyze it in ANSYS. It covers terminology, applications, screw jack design, modeling steps in PRO/E, static structural analysis in ANSYS under different loads, and results for deformation, shear stress, strain, and normal stress. The analysis found the leadscrew does not fail under the applied forces and shows satisfactory results for reduced load values.
Wrap spring clutches and brakes provide high torque in a compact package. They can be mechanically or electrically actuated and are factory assembled and tested. The document discusses various wrap spring product series including the DCB clutch brakes for single-position output and the SC spring clutch which can be mechanically actuated. It provides details on product specifications, dimensions, and part numbers.
A bearing is a device that supports load and reduces friction between moving parts. There are two main types: plain/slider bearings and rolling/anti-friction bearings. Rolling bearings use balls or rollers to create separation between surfaces and are more commonly used. Common bearing materials include metals, alloys, and some non-metals. Bearings must be properly selected, mounted, lubricated, and maintained to maximize their lifespan and prevent premature failure.
The document describes the J-DCB series of wrap spring clutch-brakes. The clutches have adjustable output stop positions with ±1/2° accuracy. They are available in clockwise or counterclockwise rotation with hub input and shaft output. Standard features include anti-overrun and anti-back functions to control output rotation. There are 8 standard models in stock with single or multi-stop solenoids. The clutches use springs and solenoids to control motion and stopping, with options to increase load capacity and life. Selection involves determining operating speed, load, shaft size, and solenoid type needed.
Bearing handbook for electric motor skfducnamtrinh
The document is a handbook for electric motor bearings from SKF that provides specifications and information about various bearing types. It includes speed ratings, dimensions, installation tips, lubrication recommendations, and other technical details for SKF deep groove ball bearings in their 6200 and 6300 series. The handbook aims to help users select, install, and maintain SKF bearings for optimal electric motor performance.
This document discusses various causes of bearing failure including excessive loads, overheating, brinelling, fatigue, contamination, lubricant failure, corrosion, misalignment, loose fits, and tight fits. For each cause, symptoms and recommended corrective actions are provided. The overall document serves to educate about common bearing failures and how to prevent or address them.
The document is a presentation on bearings created by Akash Panchal. It discusses the definition of a bearing, provides a brief history, and examines various types of bearings like ball bearings, roller bearings, plain bearings, and their functions. It also looks at bearing selection, arrangement, lubrication, and life calculation. The presentation contains several diagrams and is intended to provide an overview of bearings.
This document is the general catalogue for SKF, a manufacturer of bearings and related products. It provides an overview of the catalogue, noting it contains standard bearings and accessories. It also describes updates made to the technical section, including new models for determining friction and lubricant viscosity. The catalogue aims to match customer needs and make products available worldwide.
Carter Manufacturing Inc specializes in prototyping and manufacturing high precision bearings for both standard and specialized applicationsin industries such as chemical, food processing and industrial.To know more visit: http://www.carterbearings.co.uk/carter/cam-followers/
This document summarizes a presentation on improving wind turbine drivetrain bearing reliability. It discusses common bearing damage modes in the generator, gearbox, and main shaft and presents upgrades to address them including wear-resistant coatings, case carburization, improved geometries and materials. Specific enhancements are outlined for main shaft spherical roller bearings, planetary and high-speed gearbox bearings, and generator bearings. Test results of upgraded bearings show reduced wear and longer lifespans. The presentation emphasizes using condition monitoring and lubrication best practices to further improve bearing health and reliability.
This document provides an overview of rolling-contact bearings. It defines key terms like bearing life, load ratings, and reliability. It describes different types of ball and roller bearings and their applications. Formulas are presented for relating bearing load, life, and reliability based on catalog data. Methods for selecting bearings under combined radial and thrust loading conditions are also discussed.
This document discusses bearing selection for pumps. It explains that pump bearings often fail for reasons other than fatigue, such as improper loading. The key factors in selecting a bearing are the operating loads, temperatures, shaft fits, and speed. Bearings require a minimum thrust load to maintain proper ball tracking. Angular contact bearings with a higher contact angle require more thrust. A preload or clearance is used to ensure the minimum thrust load is met. The document provides guidance on selecting the appropriate bearing type for different pump applications and conditions.
The document discusses different types of bearings used in machines and their functions. It describes sliding contact bearings like hydrodynamic and hydrostatic bearings, and rolling contact bearings like ball and roller bearings. The key types of rolling contact bearings are explained as journal/sleeve bearings, thrust bearings, and guide bearings based on the direction of load and motion. Common applications of rolling contact bearings and their advantages are also summarized.
Design, Analysis and Manufacturing of Braking system for an Universal Terrain...EditorIJAERD
This document summarizes the design, analysis, and manufacturing of the braking system for a universal terrain vehicle. Key aspects of the braking system designed include hydraulic disc brakes, brake rotors made of SS410 steel, Vespa brake calipers, DOT4 brake fluid, a Maruti M800 tandem master cylinder, and a brake pedal with a 6:1 leverage ratio. Calculations were performed to analyze weight distribution, torque requirements, and dynamic weight transfer. The design was validated through testing, which showed the braking system could stop the vehicle within the required 15 feet from speeds up to 70 km/h.
Dokumen ini membahas tentang dial indikator, alat ukur mekanik yang digunakan untuk mengukur kebengkokan poros, kekocakan, dan kerataan. Dial indikator terdiri atas jarum panjang, jarum pendek, bidang sentuh, dan stem. Jarum panjang digunakan untuk mengukur nilai pergerakan sedangkan jarum pendek untuk menghitung putaran jarum panjang. Dial indikator dapat diaplikasikan untuk mengukur kerataan bidang
Transmisi berfungsi memindahkan putaran dan daya mesin ke roda belakang secara perlahan. Kopling manual memungkinkan pengemudi mengganti gigi secara manual, sedangkan kopling otomatis seperti fluida dan torque converter melakukannya secara otomatis. Penyebab kopling selip dan menggesek umumnya adalah masalah pada komponen kopling seperti plat, pegas, atau sistem hidroliknya.
1. This document provides information on units of measurement in chemistry including the SI base units and common unit prefixes.
2. It discusses the concepts of accuracy, precision, and significant figures in measurements and calculations.
3. Guidelines are given for determining the number of significant figures in calculations, measurements, and final answers involving addition, subtraction, multiplication and division.
The document contains tables with specifications for pipe flanges including:
- Nominal pipe diameter in mm
- Diameter and number of bolts for the flange
- Diameter of the bolt circle
- Thickness of bolts and flanges
It provides this information for standard pipe sizes ranging from 15 mm to 600 mm diameter. The tables include specifications that comply with British Standard 10.
This document provides specifications for pipe dimensions including nominal pipe size, outside diameter, schedule/wall thickness, and weight. It lists pipe sizes from 1/8 inch to 2-1/2 inches in nominal increments along with the corresponding dimensions and weights in both US customary and metric units. A wide variety of schedule designations are specified for each size providing variation in wall thickness and therefore weight.
NPS and NB can be used interchangeably to refer to the nominal pipe size or bore of piping. NPS refers to the North American standard of nominal pipe sizing in inches, while DN refers to the European standard of nominal pipe sizing in millimeters. The table shows equivalencies between NPS, DN, and SU sizes according to JIS B 2309 for butt-welding pipe fittings. For NPS 5 and larger, the DN size is equal to the NPS multiplied by 25, rather than 25.4.
This document summarizes the requirements for preliminary design of a new sewage pump station. It includes conducting geotechnical investigations, surveying the site, and performing an environmental assessment. The geotechnical investigation involves drilling borings and preparing a report with soil properties. The survey establishes horizontal and vertical site controls. An environmental site assessment evaluates potential soil and groundwater impacts. These preliminary design activities provide information to evaluate the site and develop facility alternatives.
This document provides specifications for buttweld fittings including elbows, returns, and dimensions based on ANSI B16.9 and B16.28 standards. It lists nominal pipe sizes from 1/2 to 48 inches along with common dimensions, example weights, and notes on tolerances. Long radius elbows and returns have larger dimensions than short radius fittings for a given pipe size. Dimensions and weights are provided for various fittings up to 48 inch pipe size.
Laporan praktikum pompa sentrifugal menjelaskan tujuan, alat, dan teori dasar pompa sentrifugal. Tujuannya adalah memahami karakteristik dan menentukan kapasitas serta efisiensi pompa. Alat yang digunakan adalah pompa sentrifugal lengkap dengan flowmeter dan pressure transmitter. Teori dasar menerangkan prinsip kerja, jenis, karakteristik, dan komponen pompa sentrifugal.
This document discusses diagnosing faults in centrifugal pumps using vibration analysis methods. It provides background on vibration sources in centrifugal pumps, including mechanical sources from rotating components and hydrodynamic sources from fluid flow. Experiments were conducted on a test rig using five impellers - one in good condition and four with different defects. Vibration, current, voltage and other signals were measured at different flow rates. The results showed each defective impeller had a different performance curve compared to the benchmark good impeller. Vibration responses could extract features to represent healthy and faulty pump conditions as well as energy consumption, allowing optimal decisions for pump overhaul.
Maaf saya tidak bisa mengerjakan soal latihan tersebut karena saya hanyalah asisten virtual yang tidak memiliki kemampuan untuk menghitung atau menyelesaikan soal-soal. Saya hanya dapat memberikan penjelasan konsep.
Pompa sentrifugal merupakan pompa yang banyak digunakan di PT. Charoen Pokphand Indonesia. Dokumen ini membahas perancangan dan perhitungan teoritis pompa sentrifugal dengan studi kasus di perusahaan tersebut. Dijelaskan prinsip kerja, komponen utama, dan tahapan simulasi perancangan pompa sentrifugal secara teoritis untuk dibandingkan dengan karakteristik aktual di lapangan. Hasil simulasi menunjukkan perbedaan antara karakterist
Rigid and flexible couplings are used to connect shafts for power transmission. Rigid couplings require precise shaft alignment while flexible couplings can accommodate some misalignment. Common rigid couplings include sleeve, clamp, and flange types. Flexible couplings include beam, flange, Oldham, and universal joint types. Couplings are selected based on the application and maintained through regular inspection and lubrication to prevent failures from misalignment, improper installation, or exceeding design limits. Proper shaft alignment during coupling setup is important for maximum power transmission and machine lifespan.
A coupling is a device used to connect two shafts together to transmit power while allowing for some misalignment. There are two main types of couplings: rigid couplings, which do not allow for disconnection or misalignment, and flexible couplings, which can accommodate misalignment between shafts. Flexible couplings function by transmitting power between shafts while allowing for various types of misalignment, including angular, offset, and axial misalignment. Examples of flexible couplings include flanged pin bush couplings, elastomeric couplings, gear tooth couplings, and Oldham couplings.
This document discusses different types of shaft couplings, including rigid couplings like sleeve, clamp, and flange couplings as well as flexible couplings like bushed pin, universal, and Oldham couplings. It describes the purpose of couplings in connecting shafts and allowing for misalignment while transmitting motion. Requirements for good shaft couplings include easy connection/disconnection, full power transmission without losses, holding shafts in alignment, and reducing shock loads. The document concludes with information on coupling maintenance through inspection and lubrication and potential failure modes from improper installation or operation beyond design capabilities.
This document discusses different types of shaft couplings used to connect rotating shafts. It describes rigid couplings like sleeve, clamp and flange couplings that are used when shafts are perfectly aligned. Flexible couplings like bushed pin, universal and Oldham couplings are used to connect shafts that allow for misalignment. The key requirements of couplings are to maximize power transmission while withstanding misalignment between connected shafts.
A coupling connects two rotating shafts to transmit power while allowing for some misalignment. There are many types of couplings including sleeve, flange, gear, and flexible couplings. A bearing supports rotating machinery and reduces friction by facilitating only the desired motion. Common types of bearings include ball, roller, thrust ball, and roller thrust bearings.
This document discusses different types of couplings, clutches, and brakes used to connect rotating shafts and transmit or stop motion. It describes rigid couplings like sleeve couplings that connect shafts without slip, and flexible couplings like universal joints that allow for misalignment. Friction clutches are covered, including disc clutches used in automobiles and cone clutches. Centrifugal and positive contact clutches are also mentioned. Finally, the document defines brakes as devices that produce friction to slow or stop machine motion.
Presentation on coupling prepared by Engr. Usman Ghani.
The presentation is made to foucs on very basics of coupling, even people from non engineering fields can also get an introductory idea from this presentation.
If you like this ppt and if you want me to make presentations on other important topics. please let me know.
Couplings are used to connect two shafts together for power transmission. The main types are rigid couplings for aligned shafts, like flanged, split, and keyed couplings, and flexible couplings for misaligned shafts, like universal joints, jaw couplings, and fluid couplings. Flexible couplings allow for minor axial, angular, and parallel misalignment between shafts. Common flexible couplings include muff/sleeve couplings, which connect shafts inside a hollow cylinder, and Oldham couplings, which use grooved connecting pieces to join parallel shafts that may be eccentric.
Couplings are used to connect two shafts together for power transmission. The main types are rigid couplings for aligned shafts, like flanged, split, keyed, and friction couplings, and flexible couplings for misaligned shafts, like universal joints, constant velocity joints, and fluid couplings. Flexible couplings allow for minor axial, angular, and parallel misalignment between shafts. Common flexible couplings include jaw & spider couplings, tyre couplings, and bellows couplings. Couplings allow power transmission between shafts, accommodate shaft misalignment, reduce shocks, and make assembly/disassembly easier.
This document discusses the design and classification of couplings used to connect shafts. Couplings are classified as rigid, flexible, loose/disengaging, or non-aligned. Rigid couplings connect perfectly aligned shafts, while flexible couplings allow for misalignment. Couplings are used to connect separate units like motors and generators, allow for shaft misalignment or flexibility, reduce shock transmission, and provide overload protection. Good couplings should connect/disconnect easily, transmit full power without losses, hold shafts aligned, and reduce shock transmission between shafts. Common types include sleeve, clamp, and flange rigid couplings as well as bushed pin, universal, and Oldham flexible couplings.
This document discusses different types of couplings used to connect shafts together for transmitting power or motion. It describes rigid couplings like sleeve and flanged couplings that do not allow misalignment. It also covers flexible couplings that can accommodate some misalignment like constant velocity joints, universal joints, Oldham couplings, and beam couplings. Finally, it mentions hydrodynamic or fluid couplings that use fluid to transmit motion and double cardan joints that eliminate the need to correctly phase universal joints.
Coupling clutch brake for mechanical engineering ZadafiyaMeet
This document discusses various types of couplings, clutches, and brakes used for power transmission. It describes rigid couplings like sleeve couplings and flange couplings. Flexible couplings discussed include bushed pin flange couplings, Oldham couplings, and universal couplings. Clutches described are jaw, disc, cone, and centrifugal clutches. Finally, the document outlines different brake types including block, band, and internal expanding shoe brakes.
Coupling is used to transmit power from one shaft to another and make permanent or semi-permanent connections between shafts. There are two main types of couplings: rigid couplings which do not allow relative rotation between shafts and must be perfectly aligned, and flexible couplings which allow for some misalignment and protect from vibrations. Examples of flexible couplings include bush pin flange couplings using rubber or leather bushes over pins to absorb shocks, and universal couplings used to join intersecting shafts where the angle may vary.
Couplings are used to connect shafts that are longer than can be transported as a single piece. There are rigid and flexible types of couplings. Rigid couplings like sleeve couplings strictly maintain shaft alignment, while flexible couplings allow for some misalignment through mechanisms like pins or discs. Common flexible couplings include the bush pin flange coupling, Oldham's coupling, and universal coupling, which can connect shafts that are not perfectly aligned through their flexible central components.
Couplings are used to connect two shafts for torque transmission. There are two main types of couplings: rigid couplings and flexible couplings. A rigid sleeve coupling consists of a cylindrical cast iron sleeve keyed to the shafts to connect them. It transmits power from one shaft to the other through a key and sleeve.
Coupling is one kind of mechanical device which is used to connect two shafts together at their
ends for the purpose of transmitting power.
The primary purpose of couplings is to join two pieces of rotating equipment while permitting
some degree of misalignment or end movement or both.
A rigid coupling is a unit of hardware used to join two shafts within a motor or mechanical system.
It may be used to connect two separate systems, such as a motor and a generator, or to repair a
connection within a single system. A rigid coupling may also be added between shafts to reduce
shock and wear at the point where the shafts meet.
Flanged coupling is a type of rigid coupling in which two co-linear shafts are connected by the
flanges. The coupling enables torque transmission between the shafts & prevents relative rotation
between them.
In the project work a flanged coupling was made by local material available & the analysis of
various stresses & safety factor was also performed.
The outcome of analysis is there’s no danger of failure by pure shear, even if a fatigue strength
reduction factor is included, but this same section may have severe & undefinable bending stresses
on it if the flanges are imperfectly aligned, and they surely will be. The bolts bending was neglected
since they were too small compared to the result outcome.
Finally, the computed factor of safety of the flanges suggest that it would withstand repeated
bending if the misalignment is small.
This document discusses shaft couplings, which are used to connect two shafts together. There are two main types of shaft couplings: rigid couplings, which connect perfectly aligned shafts, and flexible couplings, which connect shafts with some misalignment. Rigid couplings include sleeve/muff couplings, clamp/split-muff couplings, and flange couplings. Flexible couplings include bushing pin couplings, universal couplings, and Oldham couplings. The document then focuses on sleeve/muff couplings, explaining that they consist of a hollow cylinder that fits over the ends of two shafts connected by a key. Design considerations for sleeve couplings like proportions and stress checks are also covered.
1. Kopling
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Kopling dua buah poros yang berputar
Tujuan utama dari kopling adalah menyatukan dua bagian yang dapat berputar. Dengan
pemilihan, pemasangan, dan perawatan yang teliti, performa kopling bisa maksimal,
kehilangan daya bisa minimum, dan biaya perawatan bisa diperkecil.
Daftar isi
1 Manfaat
2 Jenis Kopling
o 2.1 Kopling Kaku
o 2.2 Kopling fleksibel
3 Pranala luar
Manfaat
Kopling digunakan dalam permesinan untuk berbagai tujuan:
Untuk menghubungkan dua unit poros yang dibuat secara terpisah, seperti poros
motor dengan roda atau poros generator dengan mesin. Kopling mampu memisahkan
dan menyambung dua poros untuk kebutuhan perbaikan dan penggantian komponen.
Untuk mendapatkan fleksibilitas mekanis, terutama pada dua poros yang tidak berada
pada satu aksis.
Untuk mengurangi beban kejut ( shock load ) dari satu poros ke poros yang lain.
Untuk menghindari beban kerja berlebih.
Untuk mengurangi karakteristik getaran dari dua poros yang berputar.
Jenis Kopling
Kopling Kaku
Kopling kaku adalah unit kopling yang menyatukan dua jenis poros yang tidak mengizinkan
terjadinya perubahan posisi kedua poros atau terlepas, disengaja atau tidak disengaja, ketika
beroperasi. Kopling kaku merupakan pilihan yang tepat ketika kedua poros ingin
dihubungkan dengan pengaturan posisi yang stabil dan presisi. Kopling ini merupakan
2. kopling dengan usia pakai yang paling tinggi selama batasan torsi, RPM, dan beban dari
poros dan kopling tidak dilampaui.
Kopling fleksibel
Kopling beam dengan bagian ulir heliksnya
Rzeppa joint dan...
... Double Cardan Joint yang merupakan contoh dari kopling CV
Kopling roda gigi
3. Kopling Oldham
Universal joint
Kopling fleksibel digunakan ketika kedua poros ada sedikit perubahan posisi secara aksial,
radial, maupun angular ketika mesin beroperasi. Beberapa jenis kopling fleksibel yaitu:
Beam
Kopling CV (constant-velocity)
Diafragma
Disc coupling
Fluid coupling
Kopling roda gigi (gear coupling)
Hirth joint
Oldham
Rag joint
Universal joint
Kopling beam, atau bisa juga disebut dengan kopling heliks, adalah kopling yang
menghantarkan daya antara dua poros dengan memperbolehkan adanya perubahan posisi dari
poros secara angular, aksial, maupun paralel hingga batasan tertentu, ketika poros bekerja.
Desain dari kopling beam adalah sepotong kopling yang memiliki bagian yang kosong
sepanjang badan kopling berbentuk heliks atau spiral, sehingga menjadikannya fleksibel.
Kopling beam biasanya dibuat dari logam paduan aluminium, baja tahan karat, dan titanium.
Gear coupling adalah kopling yang mentransmisikan daya antara dua poros yang tidak berada
dalam satu garis. Kedua poros dihubungkan dengan poros ketiga di dalam kopling yang
disebut sebagai spindle.
Kopling CV adalah kopling yang memungkinkan untuk mentransmisikan daya pada sudut
yang bervariasi dan pada kecepatan putar yang konstan. Kopling jenis ini biasa digunakan
pada mobil front wheel drive dan all wheel drive.
Universal joint adalah jenis kopling dalam bentuk dua batangan kaku yang memungkinkan
terjadinya pembelokan arah transmisi daya dari sumber daya. Uniersal joint terdiri dari
sepasang hinge yang berdekatan dan dihubungkan dengan cross shaft. Universal joint, walau
dapat mentransmisikan daya yang tidak segaris, namun memiliki kekurangan, yaitu dapat
4. memberikan output RPM yang tidak konstan walau input RPM konstan. Hal itu bisa
menyebabkan getaran dan keausan pada komponen mesin.
Pranala luar
Wikimedia Commons memiliki kategori mengenai Kopling
Wikidata: Clutches
Shaft Coupling Glossary
List of coupling types
Flash Animation of Oldham coupler
Biography of Oldham at Cornell University
Animation Video of a shaft coupling
Yutaka Nishiyama, From Oldham's Coupling to Air Conditioners
A coupling is a device used to connect two shafts together at their ends for the purpose of
transmitting power. Couplings do not normally allow disconnection of shafts during
operation, however there are torque limiting couplings which can slip or disconnect when
some torque limit is exceeded.
The primary purpose of couplings is to join two pieces of rotating equipment while
permitting some degree of misalignment or end movement or both. By careful selection,
installation and maintenance of couplings, substantial savings can be made in reduced
maintenance costs and downtime.
Contents
1 Uses
2 Types
o 2.1 Rigid
2.1.1 Sleeve coupling
2.1.2 Flange coupling
2.1.3 Clamp or split-muff coupling
2.1.4 Tapered shaft lock
2.1.5 Hirth
o 2.2 Flexible
2.2.1 Bush pin Type flange coupling
2.2.2 Beam
2.2.3 Constant velocity
2.2.4 Diaphragm
2.2.5 Disc
2.2.6 Fluid
2.2.7 Gear
2.2.8 Oldham
5. 2.2.9 Rag joint
2.2.10 Universal joint
2.2.11 Others
3 Requirements of good shaft alignment / good coupling setup
4 Coupling maintenance and failure
5 Checking the coupling balance
6 See also
7 References
8 External links
Uses
Shaft couplings are used in machinery for several purposes. The most common of which are
the following.[1]
To provide for the connection of shafts of units that are manufactured separately such as a
motor and generator and to provide for disconnection for repairs or alterations.
To provide for misalignment of the shafts or to introduce mechanical flexibility.
To reduce the transmission of shock loads from one shaft to another.
To introduce protection against overloads.
To alter the vibration characteristics of rotating units.
To connect driving and the driven part
Types
Rigid
A rigid coupling is a unit of hardware used to join two shafts within a motor or mechanical
system. It may be used to connect two separate systems, such as a motor and a generator, or
to repair a connection within a single system. A rigid coupling may also be added between
shafts to reduce shock and wear at the point where the shafts meet.
When joining shafts within a machine, mechanics can choose between flexible and rigid
couplings. While flexible units offer some movement and give between the shafts, rigid
couplings are the most effective choice for precise alignment and secure hold. By precisely
aligning the two shafts and holding them firmly in place, rigid couplings help to maximize
performance and increase the expected life of the machine. These rigid couplings are
available in two basic designs to fit the needs of different applications. Sleeve-style couplings
are the most affordable and easiest to use. They consist of a single tube of material with an
inner diameter that's equal in size to the shafts. The sleeve slips over the shafts so they meet
in the middle of the coupling. A series of set screws can be tightened so they touch the top of
each shaft and hold them in place without passing all the way through the coupling.
Clamped or compression rigid couplings come in two parts and fit together around the shafts
to form a sleeve. They offer more flexibility than sleeved models, and can be used on shafts
that are fixed in place. They generally are large enough so that screws can pass all the way
through the coupling and into the second half to ensure a secure hold.Flanged rigid couplings
are designed for heavy loads or industrial equipment. They consist of short sleeves
surrounded by a perpendicular flange. One coupling is placed on each shaft so the two
6. flanges line up face to face. A series of screws or bolts can then be installed in the flanges to
hold them together. Because of their size and durability, flanged units can be used to bring
shafts into alignment before they are joined together. Rigid couplings are used when precise
shaft alignment is required; shaft misalignment will affect the coupling's performance as well
as its life. Examples:
Sleeve coupling
A sleeve coupling consists of a pipe whose bore is finished to the required tolerance based on
the shaft size. Based on the usage of the coupling a keyway is made in the bore in order to
transmit the torque by means of the key. Two threaded holes are provided in order to lock the
coupling in position.
Sleeve couplings are also known as Box Couplings. In this case shaft ends are coupled
together and abutted against each other which are enveloped by muff or sleeve. A gib head
sunk keys hold the two shafts and sleeve together. in other words, this is the simplest type of
the coupling. It is made from the cast iron and very simple to design and manufacture. It
consists of a hollow pipe whose inner diameter is same as diameter of the shafts. The hollow
pipe is fitted over a two or more ends of the shafts with the help of the taper sunk key.a key
and sleeve are useful to transmit power from one shaft to another shaft.
Flange coupling
This coupling has two separate cast iron flanges. Each flange is mounted on the shaft end and
keyed to it. The two flanges are coupled together with the help of bolts and nuts. The
projected portion of one of the flanges and corresponding recess on the other flange help to
bring the shaft into line and to maintain alignment. A flange which is provided with a shroud
which shelters the bolts heads and nuts is called protected type flange coupling.
Clamp or split-muff coupling
In this coupling, the muff or sleeve is made into two halves parts of the cast iron and they are
join together by means of mild steel studs or bolts. The advantages of this coupling is that
assembling or disassembling of the coupling is possible without change the position of the
shaft. This coupling is used for heavy power transmission at moderate speed.
Tapered shaft lock
A tapered lock is a form of keyless shaft locking device[2] that does not require any material
to be removed from the shaft. The basic idea is similar to a clamp coupling but the moment of
rotation is closer to the center of the shaft.[3] An alternative coupling device to the traditional
parallel key, the tapered lock removes the possibility of play due to worn keyways.[4][5][6] It is
more robust than using a key because maintenance only requires one tool and the self-centering
balanced rotation means it lasts longer than a keyed joint would, but the downside
is that it costs more.[citation needed]
Hirth
Main article: Hirth joint
7. Hirth joints use tapered teeth on two shaft ends meshed together to transmit torque.
Flexible
Flexible couplings are used to transmit torque from one shaft to another when the two shafts
are slightly misaligned. Flexible couplings can accommodate varying degrees of
misalignment up to 3° and some parallel misalignment. In addition, they can also be used for
vibration damping or noise reduction.This coupling is used to protect the driving and driven
shaft members against harmful effects produce due to misalignment of the shafts, sudden
shock loads, shaft expansion or vibrations etc.
Bush pin Type flange coupling
This is used for slightly imperfect alignment of the two shafts.
This is modified form of the protected type flange coupling. This type of coupling has pins
and it works with coupling bolts. The rubber or leather bushes are used over the pins. The
coupling has two halves dissimilar in construction. The pins are rigidly fastened by nuts to
one of the flange and kept loose on the other flange. This coupling is used to connect of
shafts which having a small parallel misalignment, angular misalignment or axial
misalignment. In this coupling the rubber bushing absorbs shocks and vibration during its
operations. This type of coupling is mostly used to couple electric motors and machines.
Beam
A beam coupling
A beam coupling, also known as helical coupling, is a flexible coupling for transmitting
torque between two shafts while allowing for angular misalignment, parallel offset and even
axial motion, of one shaft relative to the other. This design utilizes a single piece of material
and becomes flexible by removal of material along a spiral path resulting in a curved flexible
beam of helical shape. Since it is made from a single piece of material, the Beam Style
coupling does not exhibit the backlash found in some multi-piece couplings. Another
advantage of being an all machined coupling is the possibility to incorporate features into the
final product while still keep the single piece integrity.
Changes to the lead of the helical beam provide changes to misalignment capabilities as well
as other performance characteristics such as torque capacity and torsional stiffness. It is even
possible to have multiple starts within the same helix.
The material used to manufacture the beam coupling also affects its performance and
suitability for specific applications such as food, medical and aerospace. Materials are
typically aluminum alloy and stainless steel, but they can also be made in acetal, maraging
8. steel and titanium. The most common applications are attaching encoders to shafts and
motion control for robotics.
A beam coupling with optional features machined into it
Increasing number of coils allows for greater angular misalignment
Constant velocity
Main article: Constant-velocity joint
There are various types of constant-velocity (CV) couplings: Rzeppa joint, Double cardan
joint, and Thompson coupling.
Diaphragm
Diaphragm couplings transmit torque from the outside diameter of a flexible plate to the
inside diameter, across the spool or spacer piece, and then from inside to outside diameter.
The deforming of a plate or series of plates from I.D. to O.D accomplishes the misalignment.
Disc
Main article: Disc coupling
Disc couplings transmit torque from a driving to a driven bolt tangentially on a common bolt
circle. Torque is transmitted between the bolts through a series of thin, stainless steel discs
assembled in a pack. Misalignment is accomplished by deforming of the material between the
bolts.
Fluid
Main article: Fluid coupling
Gear
A gear coupling
9. A gear coupling is a mechanical device for transmitting torque between two shafts that are
not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected
by a third shaft, called the spindle.
Each joint consists of a 1:1 gear ratio internal/external gear pair. The tooth flanks and outer
diameter of the external gear are crowned to allow for angular displacement between the two
gears. Mechanically, the gears are equivalent to rotating splines with modified profiles. They
are called gears because of the relatively large size of the teeth.
Gear couplings and universal joints are used in similar applications. Gear couplings have
higher torque densities than universal joints designed to fit a given space while universal
joints induce lower vibrations. The limit on torque density in universal joints is due to the
limited cross sections of the cross and yoke. The gear teeth in a gear coupling have high
backlash to allow for angular misalignment. The excess backlash can contribute to vibration.
Gear couplings are generally limited to angular misalignments, i.e., the angle of the spindle
relative to the axes of the connected shafts, of 4-5°. Universal joints are capable of higher
misalignments.
Single joint gear couplings are also used to connected two nominally coaxial shafts. In this
application the device is called a gear-type flexible, or flexible coupling. The single joint
allows for minor misalignments such as installation errors and changes in shaft alignment due
to operating conditions. These types of gear couplings are generally limited to angular
misalignments of 1/4-1/2°.
Oldham
Animated Oldham coupler
An Oldham coupling has three discs, one coupled to the input, one coupled to the output, and
a middle disc that is joined to the first two by tongue and groove. The tongue and groove on
one side is perpendicular to the tongue and groove on the other. The middle disc rotates
around its center at the same speed as the input and output shafts. Its center traces a circular
orbit, twice per rotation, around the midpoint between input and output shafts. Often springs
are used to reduce backlash of the mechanism. An advantage to this type of coupling, as
compared to two universal joints, is its compact size. The coupler is named for John Oldham
who invented it in Ireland, in 1821, to solve a paddle placement problem in a paddle steamer
design.
10.
Oldham coupler, assembled
Oldham coupler, disassembled
Rag joint
Main article: Rag joint
Rag joints are commonly used on automotive steering linkages and drive trains. When used
on a drive train they are sometimes known as giubos.
Universal joint
Main article: Universal joint
Others
Bellows coupling — low backlash
Elastomeric coupling
o Bushed pin coupling
o Donut coupling
o Spider or jaw coupling (or Lovejoy® coupling)
Geislinger coupling
Resilient coupling
Roller chain and sprocket coupling
Schmidt coupling
Requirements of good shaft alignment / good coupling
setup
Main article: Shaft alignment
It should be easy to connect or disconnect the coupling.
It does allow some misalignment between the two adjacent shaft rotation axes.
Its goal should be to minimise the remaining misalignment in running operation so as to
maximise power transmission and to maximise machine runtime (coupling, bearing and
sealing's lifetime).
It should have no projecting parts.
11. It is recommended to use manufacturer's alignment target values to set up the machine
train to a defined non-zero alignment, due to the fact that later, when the machine is at
operation temperature, the alignment condition is perfect
Coupling maintenance and failure
Coupling maintenance is generally a simple matter, requiring a regularly scheduled
inspection of each coupling. It consists of:
Performing visual inspections, checking for signs of wear or fatigue, and cleaning couplings
regularly.
Checking and changing lubricant regularly if the coupling is lubricated. This maintenance is
required annually for most couplings and more frequently for couplings in adverse
environments or in demanding operating conditions.
Documenting the maintenance performed on each coupling, along with the date.[7]
Even with proper maintenance, however, couplings can fail. Underlying reasons for failure,
other than maintenance, include:
Improper installation
Poor coupling selection
Operation beyond design capabilities.[7]
The only way to improve coupling life is to understand what caused the failure and to correct
it prior to installing a new coupling. Some external signs that indicate potential coupling
failure include:
Abnormal noise, such as screeching, squealing or chattering
Excessive vibration or wobble
Failed seals indicated by lubricant leakage or contamination.[7]
Checking the coupling balance
Couplings are normally balanced at the factory prior to being shipped, but they occasionally
go out of balance in operation. Balancing can be difficult and expensive, and is normally
done only when operating tolerances are such that the effort and the expense are justified.
The amount of coupling unbalance that can be tolerated by any system is dictated by the
characteristics of the specific connected machines and can be determined by detailed analysis
or experience.[7]
See also
12. The clutch is a device used to connect two shafts at both ends for the
purpose of transmitting mechanical power . Clutch usually does not allow
the separation between the two shafts when operating , but currently there
is a clutch that has a limited torque so it can slip or disconnect when the
torque limit is skipped.
The main purpose of the clutch is to unite the two parts which can rotate .
With the selection , installation , and maintenance of a thorough , clutch
performance to the maximum , minimum power loss can , and maintenance costs
would be minimized .
Couplings used in machinery for a variety of purposes :
• To connect two shaft units are made separately , such as the motor shaft
to the wheel with the engine or generator shaft . Clutch is able to
separate and connect two shafts for the repair and replacement parts needs
.
• For mechanical flexibility , especially on the two shafts that are not
located on one axis .
• To reduce the shock loads ( shock load ) from one shaft to another shaft
.
• To avoid excessive workload .
• To reduce the vibration characteristics of two rotating shafts .
Rigid couplings
Rigid coupling is the coupling unit which brings together two types of
shaft which does not allow a change in the position of the shaft or
released , intentionally or unintentionally , when in operation. Rigid
coupling is the right choice when the shaft wants to be associated with a
stable position control and precision . This clutch is a clutch with the
highest service life limits for torque, RPM , and the weight of the shaft
and the clutch is not exceeded.
Coupling beam , or it could be called a helix clutch , is a clutch that
delivers power between two shafts to allow for the change in angular
position of the shaft , axial , and parallel to a limited extent , when the
shaft work . The design of the coupling beam is a clutch that has the
blanks along the body of a helical or spiral -shaped clutch , making it
flexible . Coupling beam is usually made of aluminum alloy , stainless
steel , and titanium .
Gear coupling is a coupling that transmits power between two shafts that
are not in one line . The two shafts are connected by a third shaft inside
the clutch are referred to as the spindle .
CV clutch is a clutch that allows it to transmit power at varying angles
and at a constant rotational speed . This type of coupling used on front
wheel drive cars and all-wheel drive .
Universal joint coupling is in the form of two types of rigid rod that
allows the deflection direction of transmitting power from the power source
. Uniersal hinge joint consisting of a pair of adjacent and connected by a
cross shaft . Universal joint , though not transmit power line , but has a
drawback, which can provide an output RPM is not constant even though the
input constant RPM . It can cause vibration and wear on engine components .