SlideShare a Scribd company logo
S H A F T
A L I G N M E N T
Contents
Basic terms
What is shaft alignment
Why is shaft alignment so important
Types of alignment
Alignment methods
Alignment Tolerances chart
Causes of misalignment
Basic terms in shaft alignment
Co-linearity
Rotational centers
Misalignment
Stationary and Movable Machines
Horizontal and vertical misalignment
What is shaft alignment?
Shaft alignment is the positioning of the
rotational centers of two shafts such that
they are co-linear when the machines are
under normal operation.
Why is shaft alignment so important?
When shafts are misalign, forces are
generated in the coupling. Energy will be
lost and increased loads will be placed
on any mechanical components which
provide for rotation, seals, bearing
housing, etc
snap
Types of misalignment
Shaft alignment begin by defining two
types of misalignment:
1.Offset misalignment
2.Angular misalignment
Alignment methods
 There are a wide variety of methods for
measuring alignment, the most common ones
are:
1.Mechanical method
2.Dial indicator method
a) Rim-Face method
b) Reverse Rim method
3.Laser method
Alignment Tolerances chart
RPM Excellent Acceptable Excellent Acceptable
3600 0.3 0.5 1 2
1800 0.5 0.7 2 4
1200 0.7 1 3 6
900 1 1.5 4 8
Angular misalinment Mils/inch
0.001/1
Offsetmisalignment
Mils 0.001
Causes of misalignment
Increased vibration
Increased energy loss
Increased load on bearings, seals and
other mechanical components
Reduced production capacity
Reduced product quality
Vibration
Misalignment causes vibrations. Vibrations
are measured horizontally, vertically and
axially and there are some rules of thumb in
the analysis of the vibrations.
Horizontal vibrations indicate imbalance (H).
Vertical vibrations indicate a weak or loose
foundation (V).
Axial vibrations indicate misalignment (A)
Vibration
Alignment methods
Straight Edge
Reverse Rim
Rim-Face
Laser
Co-linearity
 Two shafts are said to be co-linear when
their respective rotational centers form a
single line.
Rotational centers
 All shafts, whether they are straight or bent,
rotate on an axis called the rotational center.
The rotational center forms a straight line.
Misalignment
 Shafts are misaligned when their rotational
centerlines are not co-linear, when the
machines are operating.
Stationary and Movable Machines
 When aligning any two machines, one is
designated as stationary and one as movable.
Horizontal and vertical misalignment
Horizontal Misalignment
Misalignment conditions viewed from the top and
corrected by sliding the front and back of the machine
from side to side are termed horizontal misalignment.
Vertical Misalignment
Misalignment conditions viewed from the side
(elevation) and corrected by making shim changes at
the front and back of the machine are termed vertical
misalignment.
Horizontal Misalignment
Vertical Misalignment
1.Offset misalignment
 In shaft alignment, offset misalignment pertains
to the deviation of one shaft centerline from
another shaft centerline at a given point (or
plane) along the length.
2.Angular misalignment
 Angular misalignment is most easily defined
as the slope relationship between two
rotational centers.
1.Mechanical Method
Straight edge/feeler gauge method:
 Offset misalignment is measured using a
straight edge and set of feeler gauges.
 Angular misalignment is measured by using
feeler gauges, taper gauges.
snap
Straight edges
Offset
Angular
2. Dial Indicator Methods
Rim-Face Method:
This was the standard method of alignment.
When using a rim-face method, one
measurement is taken on the rim of the
coupling to determine shaft offset. Another
measurement is taken on the face of the
coupling to determine shaft angularity.
Rim-Face Method:
Why is shaft alignment so important?
Forces generates
on coupling
Damaged seal
T H A N K
Y O U
GHULAM MOHIUDDIN

More Related Content

Similar to 1674111986034.pdf

Computer based Wireless Automobile Wheel Alignment system using Accelerometer
Computer based Wireless Automobile Wheel Alignment system using AccelerometerComputer based Wireless Automobile Wheel Alignment system using Accelerometer
Computer based Wireless Automobile Wheel Alignment system using Accelerometer
theijes
 
Shaper
ShaperShaper
High speed balancing of turbine rotors
High speed balancing of turbine rotorsHigh speed balancing of turbine rotors
High speed balancing of turbine rotors
Ashish Kumar Jain
 
Gear Box Nirjhar
Gear Box NirjharGear Box Nirjhar
Gear Box Nirjhar
Nirjhar Chakravorti
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdf
Shreyas Pandit
 
gear and rolling friction
 gear and rolling friction gear and rolling friction
gear and rolling friction
Uludağ University
 
Gear Cutting Presentation for Polytechnic College Students of India
Gear Cutting Presentation for Polytechnic College Students of IndiaGear Cutting Presentation for Polytechnic College Students of India
Gear Cutting Presentation for Polytechnic College Students of India
kichu
 
Lecture 6 shaping and planing
Lecture 6 shaping and planingLecture 6 shaping and planing
Lecture 6 shaping and planing
Rania Atia
 
Shaper
Shaper Shaper
Shaper
Monu1992
 
shaper machine Manufacturing Technology
shaper machine Manufacturing Technologyshaper machine Manufacturing Technology
shaper machine Manufacturing Technology
WinstonSajil
 
Design of Gear.pdf
Design of Gear.pdfDesign of Gear.pdf
Design of Gear.pdf
HusseinAbdulwahab1
 
highspeedbalancingofrotors-181004093658-2.PDF
highspeedbalancingofrotors-181004093658-2.PDFhighspeedbalancingofrotors-181004093658-2.PDF
highspeedbalancingofrotors-181004093658-2.PDF
Kiran252903
 
TOM.pptx
TOM.pptxTOM.pptx
TOM.pptx
VIGNESHS657431
 
Mechanical motion
Mechanical motionMechanical motion
Mechanical motion
Jutka Czirok
 
Chapter 6 - Gyroscope Notes.pdf
Chapter 6 - Gyroscope Notes.pdfChapter 6 - Gyroscope Notes.pdf
Chapter 6 - Gyroscope Notes.pdf
EMII014922021NISSIEL
 
Dual Axis Steering Mechainism .pdf
Dual Axis Steering Mechainism .pdfDual Axis Steering Mechainism .pdf
Dual Axis Steering Mechainism .pdf
KunalSonawane26
 
Information of different types of Gears .pptx
Information of different types of Gears .pptxInformation of different types of Gears .pptx
Information of different types of Gears .pptx
Viddya Patil
 
ORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
ORBIT PLOT ANALYSIS - VIBRATION ANALYSISORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
ORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
MUHAMMAD RIFQIFAUZI WIJAYA
 
Reciprocating machine tools shaper
Reciprocating machine tools shaperReciprocating machine tools shaper
Reciprocating machine tools shaper
rmkcet
 
Positioners used for welding ppt
Positioners used for welding pptPositioners used for welding ppt
Positioners used for welding ppt
Arcraft Plasma Equipments ( I ) Pvt Ltd
 

Similar to 1674111986034.pdf (20)

Computer based Wireless Automobile Wheel Alignment system using Accelerometer
Computer based Wireless Automobile Wheel Alignment system using AccelerometerComputer based Wireless Automobile Wheel Alignment system using Accelerometer
Computer based Wireless Automobile Wheel Alignment system using Accelerometer
 
Shaper
ShaperShaper
Shaper
 
High speed balancing of turbine rotors
High speed balancing of turbine rotorsHigh speed balancing of turbine rotors
High speed balancing of turbine rotors
 
Gear Box Nirjhar
Gear Box NirjharGear Box Nirjhar
Gear Box Nirjhar
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdf
 
gear and rolling friction
 gear and rolling friction gear and rolling friction
gear and rolling friction
 
Gear Cutting Presentation for Polytechnic College Students of India
Gear Cutting Presentation for Polytechnic College Students of IndiaGear Cutting Presentation for Polytechnic College Students of India
Gear Cutting Presentation for Polytechnic College Students of India
 
Lecture 6 shaping and planing
Lecture 6 shaping and planingLecture 6 shaping and planing
Lecture 6 shaping and planing
 
Shaper
Shaper Shaper
Shaper
 
shaper machine Manufacturing Technology
shaper machine Manufacturing Technologyshaper machine Manufacturing Technology
shaper machine Manufacturing Technology
 
Design of Gear.pdf
Design of Gear.pdfDesign of Gear.pdf
Design of Gear.pdf
 
highspeedbalancingofrotors-181004093658-2.PDF
highspeedbalancingofrotors-181004093658-2.PDFhighspeedbalancingofrotors-181004093658-2.PDF
highspeedbalancingofrotors-181004093658-2.PDF
 
TOM.pptx
TOM.pptxTOM.pptx
TOM.pptx
 
Mechanical motion
Mechanical motionMechanical motion
Mechanical motion
 
Chapter 6 - Gyroscope Notes.pdf
Chapter 6 - Gyroscope Notes.pdfChapter 6 - Gyroscope Notes.pdf
Chapter 6 - Gyroscope Notes.pdf
 
Dual Axis Steering Mechainism .pdf
Dual Axis Steering Mechainism .pdfDual Axis Steering Mechainism .pdf
Dual Axis Steering Mechainism .pdf
 
Information of different types of Gears .pptx
Information of different types of Gears .pptxInformation of different types of Gears .pptx
Information of different types of Gears .pptx
 
ORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
ORBIT PLOT ANALYSIS - VIBRATION ANALYSISORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
ORBIT PLOT ANALYSIS - VIBRATION ANALYSIS
 
Reciprocating machine tools shaper
Reciprocating machine tools shaperReciprocating machine tools shaper
Reciprocating machine tools shaper
 
Positioners used for welding ppt
Positioners used for welding pptPositioners used for welding ppt
Positioners used for welding ppt
 

Recently uploaded

一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
slg6lamcq
 
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
nuttdpt
 
Palo Alto Cortex XDR presentation .......
Palo Alto Cortex XDR presentation .......Palo Alto Cortex XDR presentation .......
Palo Alto Cortex XDR presentation .......
Sachin Paul
 
Jio cinema Retention & Engagement Strategy.pdf
Jio cinema Retention & Engagement Strategy.pdfJio cinema Retention & Engagement Strategy.pdf
Jio cinema Retention & Engagement Strategy.pdf
inaya7568
 
How To Control IO Usage using Resource Manager
How To Control IO Usage using Resource ManagerHow To Control IO Usage using Resource Manager
How To Control IO Usage using Resource Manager
Alireza Kamrani
 
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
v7oacc3l
 
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
Kaxil Naik
 
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
Vietnam Cotton & Spinning Association
 
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
ywqeos
 
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
ihavuls
 
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
nyvan3
 
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
taqyea
 
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
Social Samosa
 
社内勉強会資料_Hallucination of LLMs               .
社内勉強会資料_Hallucination of LLMs               .社内勉強会資料_Hallucination of LLMs               .
社内勉強会資料_Hallucination of LLMs               .
NABLAS株式会社
 
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
z6osjkqvd
 
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
aguty
 
End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
Lars Albertsson
 
The Ipsos - AI - Monitor 2024 Report.pdf
The  Ipsos - AI - Monitor 2024 Report.pdfThe  Ipsos - AI - Monitor 2024 Report.pdf
The Ipsos - AI - Monitor 2024 Report.pdf
Social Samosa
 
一比一原版(UO毕业证)渥太华大学毕业证如何办理
一比一原版(UO毕业证)渥太华大学毕业证如何办理一比一原版(UO毕业证)渥太华大学毕业证如何办理
一比一原版(UO毕业证)渥太华大学毕业证如何办理
bmucuha
 
Template xxxxxxxx ssssssssssss Sertifikat.pptx
Template xxxxxxxx ssssssssssss Sertifikat.pptxTemplate xxxxxxxx ssssssssssss Sertifikat.pptx
Template xxxxxxxx ssssssssssss Sertifikat.pptx
TeukuEriSyahputra
 

Recently uploaded (20)

一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
一比一原版南十字星大学毕业证(SCU毕业证书)学历如何办理
 
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
一比一原版(UCSF文凭证书)旧金山分校毕业证如何办理
 
Palo Alto Cortex XDR presentation .......
Palo Alto Cortex XDR presentation .......Palo Alto Cortex XDR presentation .......
Palo Alto Cortex XDR presentation .......
 
Jio cinema Retention & Engagement Strategy.pdf
Jio cinema Retention & Engagement Strategy.pdfJio cinema Retention & Engagement Strategy.pdf
Jio cinema Retention & Engagement Strategy.pdf
 
How To Control IO Usage using Resource Manager
How To Control IO Usage using Resource ManagerHow To Control IO Usage using Resource Manager
How To Control IO Usage using Resource Manager
 
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
在线办理(英国UCA毕业证书)创意艺术大学毕业证在读证明一模一样
 
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
Orchestrating the Future: Navigating Today's Data Workflow Challenges with Ai...
 
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
[VCOSA] Monthly Report - Cotton & Yarn Statistics March 2024
 
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
一比一原版(lbs毕业证书)伦敦商学院毕业证如何办理
 
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
 
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
一比一原版英国赫特福德大学毕业证(hertfordshire毕业证书)如何办理
 
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
一比一原版(harvard毕业证书)哈佛大学毕业证如何办理
 
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
4th Modern Marketing Reckoner by MMA Global India & Group M: 60+ experts on W...
 
社内勉強会資料_Hallucination of LLMs               .
社内勉強会資料_Hallucination of LLMs               .社内勉強会資料_Hallucination of LLMs               .
社内勉強会資料_Hallucination of LLMs               .
 
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
一比一原版英属哥伦比亚大学毕业证(UBC毕业证书)学历如何办理
 
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
一比一原版澳洲西澳大学毕业证(uwa毕业证书)如何办理
 
End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024End-to-end pipeline agility - Berlin Buzzwords 2024
End-to-end pipeline agility - Berlin Buzzwords 2024
 
The Ipsos - AI - Monitor 2024 Report.pdf
The  Ipsos - AI - Monitor 2024 Report.pdfThe  Ipsos - AI - Monitor 2024 Report.pdf
The Ipsos - AI - Monitor 2024 Report.pdf
 
一比一原版(UO毕业证)渥太华大学毕业证如何办理
一比一原版(UO毕业证)渥太华大学毕业证如何办理一比一原版(UO毕业证)渥太华大学毕业证如何办理
一比一原版(UO毕业证)渥太华大学毕业证如何办理
 
Template xxxxxxxx ssssssssssss Sertifikat.pptx
Template xxxxxxxx ssssssssssss Sertifikat.pptxTemplate xxxxxxxx ssssssssssss Sertifikat.pptx
Template xxxxxxxx ssssssssssss Sertifikat.pptx
 

1674111986034.pdf

  • 1. S H A F T A L I G N M E N T
  • 2. Contents Basic terms What is shaft alignment Why is shaft alignment so important Types of alignment Alignment methods Alignment Tolerances chart Causes of misalignment
  • 3. Basic terms in shaft alignment Co-linearity Rotational centers Misalignment Stationary and Movable Machines Horizontal and vertical misalignment
  • 4. What is shaft alignment? Shaft alignment is the positioning of the rotational centers of two shafts such that they are co-linear when the machines are under normal operation.
  • 5. Why is shaft alignment so important? When shafts are misalign, forces are generated in the coupling. Energy will be lost and increased loads will be placed on any mechanical components which provide for rotation, seals, bearing housing, etc snap
  • 6. Types of misalignment Shaft alignment begin by defining two types of misalignment: 1.Offset misalignment 2.Angular misalignment
  • 7. Alignment methods  There are a wide variety of methods for measuring alignment, the most common ones are: 1.Mechanical method 2.Dial indicator method a) Rim-Face method b) Reverse Rim method 3.Laser method
  • 8. Alignment Tolerances chart RPM Excellent Acceptable Excellent Acceptable 3600 0.3 0.5 1 2 1800 0.5 0.7 2 4 1200 0.7 1 3 6 900 1 1.5 4 8 Angular misalinment Mils/inch 0.001/1 Offsetmisalignment Mils 0.001
  • 9. Causes of misalignment Increased vibration Increased energy loss Increased load on bearings, seals and other mechanical components Reduced production capacity Reduced product quality
  • 10. Vibration Misalignment causes vibrations. Vibrations are measured horizontally, vertically and axially and there are some rules of thumb in the analysis of the vibrations. Horizontal vibrations indicate imbalance (H). Vertical vibrations indicate a weak or loose foundation (V). Axial vibrations indicate misalignment (A)
  • 13. Co-linearity  Two shafts are said to be co-linear when their respective rotational centers form a single line.
  • 14. Rotational centers  All shafts, whether they are straight or bent, rotate on an axis called the rotational center. The rotational center forms a straight line.
  • 15. Misalignment  Shafts are misaligned when their rotational centerlines are not co-linear, when the machines are operating.
  • 16. Stationary and Movable Machines  When aligning any two machines, one is designated as stationary and one as movable.
  • 17. Horizontal and vertical misalignment Horizontal Misalignment Misalignment conditions viewed from the top and corrected by sliding the front and back of the machine from side to side are termed horizontal misalignment. Vertical Misalignment Misalignment conditions viewed from the side (elevation) and corrected by making shim changes at the front and back of the machine are termed vertical misalignment.
  • 20. 1.Offset misalignment  In shaft alignment, offset misalignment pertains to the deviation of one shaft centerline from another shaft centerline at a given point (or plane) along the length.
  • 21. 2.Angular misalignment  Angular misalignment is most easily defined as the slope relationship between two rotational centers.
  • 22. 1.Mechanical Method Straight edge/feeler gauge method:  Offset misalignment is measured using a straight edge and set of feeler gauges.  Angular misalignment is measured by using feeler gauges, taper gauges. snap
  • 24. 2. Dial Indicator Methods Rim-Face Method: This was the standard method of alignment. When using a rim-face method, one measurement is taken on the rim of the coupling to determine shaft offset. Another measurement is taken on the face of the coupling to determine shaft angularity.
  • 26. Why is shaft alignment so important? Forces generates on coupling Damaged seal
  • 27. T H A N K Y O U GHULAM MOHIUDDIN