The companies of Altra Industrial Motion offer many critical drivetrain products utilized in marine applications including clutches & brakes, couplings, universal joints, linear actuators and turning, locking and braking systems

1. Applications & Innovations
Marine Market

2. We’re committed to the
Marine Market
The companies of Altra Industrial Motion offer many critical
drivetrain products utilized in marine applications including
clutches & brakes, couplings, universal joints, linear actuators and
turning, locking and braking systems.
Altra Brands Deliver Value Throughout the Drivetrain
Altra Industrial Motion is positioned to provide OEMs with
exceptional drivetrain value by ensuring component compatibility
and optimized performance combined with time-saving,
single-source convenience.
Extensive Technical Experience in Marine Applications
Major OEMs routinely rely on the vast marine application knowledge
of Altra’s engineering teams that collaborate to thoroughly analyze
specific customer applications and then apply the latest technologies
in design, materials and manufacturing.

3. Altra Provides High Perfomance
Coupling Solutions for Navies
Around the World
Application ProfileApplication Profile

4. www.ameridrives.com
• Bibby Turboflex and Ameridrives are now leading global suppliers
of couplings for the naval/marine market.
• The engineering teams at Bibby and Ameridrives routinely develop
advanced Turboflex disc couplings and Ameriflex diaphragm
couplings to meet or exceed the challenging requirements of all
types of marine propulsion gas turbines, including the popular
GE LM Series.
• Altra high-performance couplings are also designed and manufactured
to meet the requirements demanded by all of the major international
marine classification societies including, ABS, DNV and Lloyds.
• Bibby and Ameridrives couplings can be found on most of the next
generation naval ships currently under construction at shipyards
around the world.
Altra Provides High Performance Coupling
Solutions for Navies Around the World
www.bibbytransmission.co.ukP-8325-C.pdf *Source: www.quora.com (2016 fleet sizes)

5. Turning, Locking and Braking (TLB) System from
Twiflex Provides Single-Source Convenience for
Marine and Other Industrial Applications
Application ProfileApplication Profile

6. • When large ships are moored for an extended period of time, especially
in a flow stream or current, their propulsion shafts need to be set and
locked to prevent undesired rotation. During regular maintenance the
shaft needs to be locked in a fixed position, yet also able to be
incrementally rotated in both directions to allow complete access.
• The compact Twiflex TLB consolidates three usually separate interfaces
and functions into one compact package, including brakes and mounting
brackets, turning device and gearwheel, and locking mechanism.
• The TLB system is also an ideal choice for auto shredder rotors as it can
provide secure locking functionality as well as allowing controlled
incremental creep rotation for tooth replacement and jam clearing.
• Twiflex has also supplied custom TLB systems for use in large diameter
forced draft, induced draft, and primary air type axial fans that are critical
to boiler air and flue gas flows in the steam generating process at coal-
fired power plants.
Turning, Locking and Braking (TLB) System from
Twiflex Provides Single-Source Convenience for
Marine and Other Industrial Applications
P-8398-TF.pdf *Source: Ships Time in Port, an international
comparison
www.twiflex.com

7. Ice Breaker Propulsion Shaft
Problem:
A leading global marine propulsion system OEM required a
drive shaft turning, locking and braking solution for use on a
next-generation ice-breaking vessel. Controlled locally or from
the bridge, the equipment fitted to each of the three propeller
drives rotates and holds the propulsion shaft during maintenance.
It also stops and locks the drive shaft to prevent the propeller
from rotating when the vessel is moored in a flow stream.
Solution:
Twiflex engineers worked closely with the OEM to develop the
completely new custom TLB-180 System that produces a
continuous turning torque of 140 kNm at 0.6 rpm in both
directions with a dynamic braking capacity and static locking
torque rated up to 180 kNm.
• Custom direct hydraulic applied, spring released caliper brakes
• Custom hydraulic power pack and control panel
• Integrated motor-driven geared pinion
Application Profile
TLB-180 Turning, Locking & Braking System

8. Naval Propulsion and
Auxiliary Drives
Problem:
A variety of custom coupling solutions were needed for use
aboard the U.S. Navy’s fleet of Arleigh Burke-class guided
missile destroyers.
Solution:
Engineers at Ameridrives worked closely with the ship’s
propulsion drive OEM to develop custom Ameriflex diaphragm
and Amerigear gear couplings to meet the challenging drive
application requirements.
• Both Ameriflex and Amerigear couplings are incorporated
within both drivetrains on the twin propeller shafts of each ship.
• Ameriflex couplings feature a unique diaphragm design which
permits high-torque density and low weight.
• Amerigear couplings feature fully-crowned gear teeth which
provide maximum load-carrying capacity
Application Profile
Custom Ameriflex and Amerigear Couplings

9. Application Profile
Crew/Supply Vessels
Problem:
Reliable universal joints were required to serve as the main
drive shafts on two models of marine vessels used to ferry
crews and supplies to drilling platforms in the Gulf of Mexico.
The challenging issues in this application were that the shaft
systems varied in length from 196 to 240 inches, and each
shaft passed through a watertight bulkhead which required a
sealing system to isolate each hull section in case of damage.
Solution:
With extensive marine engineering expertise, Ameridrives
Power Transmission selected the correct layout and locations
of components and was able to provide complete assemblies.
• Peak torque 486,750 lb.In. (55,000 Nm)
• Long service life in continuous operation
• Exclusive roller bearings prevent skewing
Americardan 3265 Universal Joint

10. LNG Ship Compressor
Problem:
A leading global designer and builder of marine and offshore
liquid gas plants needed a new cost-effective coupling solution
for use on a reciprocating compressor onboard an LNG ship.
Two couplings are used on the compressor drivetrain to connect
the electric motor to the gearbox and the gearbox to the
compressor. The previous couplings, which were costly and very
heavy, had a spacer machined from solid steel.
Solution:
Bibby Turboflex provided custom Torsiflex disc couplings with
fabricated plug-in spacers and taper lock bushings to meet the
challenging customer specifications and tight delivery timeline.
Torsiflex couplings are specifically designed for compressor,
pump, fan and blower applications.
• Fabricated welded steel spacers with a butt welded joint
significantly reduces overall coupling weight and mass, which,
in turn, increase bearing life.
Application Profile
Torsiflex Couplings

11. FPSO Vessel Pump
Problem:
A leading industrial pump manufacturer needed high-performance
couplings for a topside sea water injection pump package used
on-board a floating production, storage and off-loading (FPSO)
ship. The massive oil and gas refining vessel, with a 2M barrel
capacity, is positioned over the Egina deepwater oilfield, 150 Km
off the shore of Nigeria. The couplings connect the electric drive
motor to the gearbox and gearbox to a 7-stage centrifugal pump.
Solution:
The pump OEM contacted Bibby Turboflex for its extensive
coupling engineering expertise, quality manufacturing and
reasonable lead times. Bibby supplied modified standard
Turboflex HF Series disc couplings with tapered bores to meet
the challenging application requirements.
• Torsionally-tuned spacers for reduced stiffness
• Machined hubs to suit customer shaft end details.
• API 671 & ATEX compliant
Application Profile
Turboflex HF Series Disc Coupling

12. Anchor Handling
Vessel Winches
Problem:
Several heavy-duty clutches and brakes were required for use
on a large load winch drive system aboard an anchor handling
tug supply (AHTS) vessel. The vessel features a large
diameter drum, 600 ton capacity winch and two smaller
diameter drums, 500 ton capacity winches which all
accommodate cable up to
3 in. diameter.
Solution:
Wichita supplied Kopper Kool clutches which provide
enhanced operational safety due to their ability to slip under
torque overload during snag conditions. In rough seas, the
clutches slip to provide wave compensation while reducing
overload/strain on the winch drive system.
• (3) KKC 336H Kopper Kool Clutches with 112,500 ft.lb.
torque • (6) LKBH 217 Spring Set Brakes with 74,460 in.lb.
torque
Application Profile
Wichita Kopper Kool Clutch

13. Diving Support Vessel
Problem:
A leading winch manufacturer asked Wichita to provide
brakes that can withstand the salt water environment of
deck-mounted mooring winches on diving support vessels
(DSVs). The brakes are part of a 4-point, computer-
controlled mooring system that maintains the ships position
over a dive site.
Solution:
Wichita developed the AquaMaKKs LI-SSB which has been
specially modified to withstand highly corrosive sea spray
and direct seawater splash prevalent in marine deck areas.
• Low inertia, air-cooled, spring-set, air tube release, high-
torque brakes
• Units serve as stop-and-set parking brakes to hold the
vessel in precise position
• In the event of power loss, the brakes are calibrated to
provide a controlled emergency stop which prevents vessel
drift while protecting drivetrain components
Application Profile
AquaMaKKs LI-SSB Brakes

14. Seabed Dredging Vessels
Problem:
Original conical clutches needed to be replaced on the main
dredge pumps on two dredging vessels. The vessels use
huge, toothed dragheads to channel sand from the seabed
into an intake where powerful suction pumps pull sand into
the ship’s hopper.
Solution:
Wichita Clutch Marine Standard Ventilated multi-plate
clutches were installed on each vessel.
• Pneumatically-actuated clutch/coupling allows rapid pump
connection/disconnection during dredging
• Larger friction area
• Significantly reduced load inertia
• Lower surface temperatures
• Reduced friction wear
Application Profile
Marine Standard Ventilated
Multi-plate Clutch

15. Dredging Vessel
Centrifugal Pump Drive
Problem:
A leading dredging owner/operator needed to replace a
competitor-supplied clutch/coupling combination on one of its
fleet of “Trailing Suction Hopper Dredgers”. The clutch is
positioned between the forward end of the main propulsion
diesel engine and input shaft to the dredge pump gearbox.
Solution:
Wichita supplied its new sinter metallic friction variant of its
pneumatically actuated MSV (Marine Standard Ventilated)
clutch/coupling that was designed to “drop-in” to the existing
space to avoid expensive re-engineering costs.
• Designed for high-energy start applications
• Sinter metallic friction linings
• Unique pin drive arrangement provides ease of maintenance
• Radially removed friction segments reduce downtime
Application Profile
MSV Sinter Metallic Friction, Pin Drive Clutch

16. Dredging System
Problem:
A major manufacturer of dredging systems needed a reliable
coupling solution with a small footprint for use on a new
dredging vessel platform. The system features a 1200 HP diesel
engine that drives a complex, custom-designed, eight-pad
gearbox with primary output to a two-speed clutch that drives
the system’s main pump, as well as hydraulic pump pads to
operate a crane and auxiliaries.
Solution:
The Stromag engineering team designed a unique hybrid
Periflex CR (PCR) shaft coupling to meet the challenging
dredging rig application requirements. The modified PCR
coupling utilized a rubber element from a similar Stromag model
PCS coupling and a bolt-on adaptor hub with a splined bore.
Extensive torsional vibration analysis (TVA) work was
completed on this complex multi-stream system of 9 driven
components.
Application Profile
Modified Periflex®
CR Shaft Coupling

17. Underwater Mining Dredge
Problem:
A sand mining dredge required a 120 ft. long coupling drive
(longest ever built) to connect a 600HP motor to a suction
pump operating at the bottom of an underwater sand mine.
Solution:
TB Wood’s engineers designed a custom hub with unique
flange disc pack and tapered bushing mounting
• Six modified Form-Flex couplings were connected to form
the 120 ft. drive train
• Design allows for easy field service and axial adjustment of
the pump impeller
• Couplings were selected due to superior capacity to handle
parallel offset and angular misalignment
• Units designed to operate in a harsh environment with low
maintenance for 40 years
Application Profile
Form-Flex®
Disc Couplings

18. Workboat Fire Pumps
Problem:
A leading marine and industrial powertrain manufacturer
needed a clutch solution for a new diesel engine remote
PTO assembly used on workboats, tugboats, supply boats
and dredging equipment which typically require 300 HP to
500 HP hydraulic and fire pumps.
Solution:
The Warner Electric SFC-1525 stationary field clutch was
chosen for the new PTO due to it’s size and design, it’s
remote electrical activation and Warner Electric’s reputation
for cost-effective reliability.
• The complete shaft-mounted assembly consists of an
SFC-1525 clutch (with splined hub and adaptor and taper
lock bushings), a torque limiter, a coupling and bearings.
• 700 ft.lbs. (949 Nm) static torque
• Economical, compact package
Application Profile
SFC-1525 Clutch

19. Ferry Propulsion System
Problem:
A coupling solution was needed for a new catamaran ferry
propulsion system that was powered by twin diesel engines
connected to a gearbox which drives a waterjet or thruster pod.
The coupling/shaft had a flange-to-flange span length of more
than 9 feet. The gearbox is close-coupled to the engine, with
both bouncing on resilient engine mounts, so the gearbox
output flange had several millimeters of radial and axial
movement.
Solution:
Due to the span length and weight considerations, the use of
a TB Wood’s carbon fiber composite shaft, mounted between
high-misalignment-capacity Stromag Vector®
couplings on both
ends, is an ideal choice for this application.
• Eliminates multiple sections of heavy steel shafting and
pedestal bearing supports
• Accommodates large shaft displacements in all directions
Application Profile
Vector®
Couplings & Composite Shaft

20. Tugboat Winch
Problem:
One of the World’s largest diesel engine distributors, located in
Canada, required a reliable coupling for use on a commercial
tugboat’s hydraulic towing winch system. The coupling connects
the winch’s hydraulic pump to one of the tug’s twin 1500 HP
diesel propulsion engines that transmit 450 HP to the pump.
Solution:
After a review of the application requirements, Stromag
engineers recommended the use of a Stromag Vector®
20
coupling, which has a maximum torque rating of 14,603 ft.lbs.
(19,800 Nm) and an extremely high misalignment capacity.
The highly flexible Vector coupling utilizes Stromag’s GE elastic
element concept with high tensile strength fabric embedded into
the rubber. This design has years of proven performance in
diverse applications worldwide.
Application Profile
Vector®
Coupling

21. Vessel Mooring Winches
Problem:
Twiflex Ltd. recently supplied brakes to a major offshore
winch manufacturer based in the Netherlands for use on
ship-to-ship mooring winches. During towing operations, if the
tow cable tension is greater than 30 tons, due to the action of
the waves between the two vessels, the brakes slip to protect
the winch and cable. If the load is below 30 tons the cable is
reeled in.
Solution:
Twiflex VKSD-FL (floating) spring-applied, hydraulically-
released brakes were supplied, each rated at 119 KN braking
force for a 2mm pad air gap.
• Each of the two onboard winches utilize VKSD-FL brakes
acting on a 1500mm dia. x 40mm thick extended drum
flange
• Unique ‘parked-off’ feature
• Non-asbestos lining materials with large pad areas for
maximum heat dissipation
Application Profile
VKSD-FL Spring-Applied Brakes

22. Application Profile
Coast Guard Response Boat
Problem:
An overrunning clutch solution was needed for use on the
U.S. Coast Guard’s RBM patrol boat fleet. The 45-foot boats
perform a variety of missions including search and rescue,
marine environmental protection, law enforcement, and coastal
security. Powered by twin 825 HP turbocharged diesel
engines, the boats can reach a maximum speed of 42.5 knots
(49 mph).
Solution:
Formsprag supplied modified GFR ball bearing supported,
ramp & roller clutches to meet the demanding application
requirements. The clutch also improves the operating life of the
drive line components by eliminating torque reversals that
can occur when there is rapid deceleration in the boat’s diesel
engine speed. The clutches are plated for enhanced corrosion
resistance.
Modified GFR Clutch

23. Application Profile
Navy Destroyer
Lifeboat Davits
Problem:
A new clutch solution was needed for use on the lifeboat davits
aboard U.S. navy destroyers. The clutches are used on the
davit winch drives to provide an optional manual drive to the
normal powered drive system which smoothly raises and lowers
the lifeboats. The existing clutches were failing during routine
manual operational checks causing the lifeboats to free fall to
water level.
Solution:
Formsprag Clutch engineers worked closely with the davit
gearbox OEM to develop a modified FL-52A Form-Lock bi-
directional clutch to meet the stringent naval standards.
• Torque rating of 400 in.lb. (45 Nm)
• Custom housing, bearing arrangement and monitoring interface
• Special non-corrosive coating to withstand salt water exposure
Model FL Bi-Directional Backstopping Clutch

24. Marine Hatches
Problem:
A leading distributor of high-performance marine products was
looking for a reliable line of electric actuators for use in boat
engine compartment hatch lifts. Lifting the heavy cover/hatch
above the large engine compartment can be a strenuous
challenge.
Solution:
Warner Linear was selected to “do the heavy lifting” by
supplying 18" and 24" stroke K2M electric actuators with up to
500 lb. load capacity.
• 4", 6" and 8" stroke models with 75 lb. to 250 lb. load
capacities were also provided for use on seat lifts, driver
canopy lifts, and windshield adjustment.
• Units feature ignition-protected, non-sparking motors (marine
motor certified) which are designed for use in enclosed
areas,
such as engine compartments, where dangerous fumes can
build up.
Application Profile
K2M Linear Actuators
Application Profile