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Flexible Shaft Couplings

Flexible Shaft Couplings

Mfr. PYI

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$167.10 - $2,823.16
The PYI Flexible Shaft Coupling reduces vibration from engine and transmission, compensates for minor misalignments, and isolates the shaft while absorbing shock loads.

  • Ideal for marine engine installations
  • Polyurethane flange creates a flexible barrier to reduce drive train noise and vibration to quiet your drive train
  • Absorbs transmission shock loads caused by the propeller and high speed gear changes
  • Fail safe design, both forward and reverse thrust is taken in compression from the steel straps, giving a durable design even in extreme conditions
See Additional Specs.
Part No. Mfr No. Gear Manufacturer Gear Flange Diameter No. Bolts Bolt Pitch Circle Unit Leaves Warehouse* List Price
Your Price
Qty.
Flexible Shaft Coupling, 910-001
79376 910-001 Borg Warner, PRM, Hurth, Technodrive 4.00" 4 3.25" Each In-Stock
(Ships In: 1 - 2 Days)
$203.94
$188.31
 
Flexible Shaft Coupling, 910-002
79377 910-002 Yanmar 4.00" 4 78mm Each 2 Days $193.94
$179.08
 
Flexible Shaft Coupling, 910-003
79378 910-003 Borg Warner, PRM, MPM, Twin Disc 5.75" 6 4.75" Each 2 Days $526.73
$486.36
 
Flexible Shaft Coupling, 910-004
79379 910-004 Borg Warner, PRM, Hurth 4.00" 4 3.25" Each 2 Days $212.08
$195.83
 
Flexible Shaft Coupling, 910-005
79380 910-005 Paragon 4.00" 4 3.25" Each 2 Days $207.20
$191.32
 
Flexible Shaft Coupling, 910-006
79381 910-006 Twin Disc, MPM, Hurth 5.75" 6 4.75" Each 2 Days $564.08
$520.85
 
Flexible Shaft Coupling, 910-007
79384 910-007 Volvo 4.00" 4 80mm Each 2 Days $181.84
$167.90
 
Flexible Shaft Coupling, 910-009
79386 910-009 Borg Warner, PRM, Hurth, Volvo 5.00" 4 4.25" Each 2 Days $361.33
$333.64
 
Flexible Shaft Coupling, 910-012
79388 910-012 Yanmar 5.00" 4 100mm Each 2 Days $326.02
$301.03
 
Flexible Shaft Coupling, 910-013
204387 910-013 Bukh 90mm 4 74.5mm Each 2 Days $193.94
$179.08
 
Flexible Shaft Coupling, 910-014
79393 910-014 Borg Warner, PRM, Hurth, Technodrive, ZF 4.00" 4 3.25" Each 2 Days $180.97
$167.10
 
Flexible Shaft Coupling, 910-015
79394 910-015 Self Change 350 HD 8.75" 6 7.50" Each 2 Days $1,113.06
$1,027.76
 
Flexible Shaft Coupling, 910-016
79395 910-016 Self change 700 HD 10.25" 6 9.00" Each 2 Days $1,640.96
$1,515.20
 
Flexible Shaft Coupling, 910-017
79396 910-017 Twin Disc 7.25" 6 6.00" Each 2 Days $1,113.06
$1,027.76
 
Flexible Shaft Coupling, 910-018
79397 910-018 PRM 7.25" 6 6.00" Each 2 Days $1,113.06
$1,027.76
 
Flexible Shaft Coupling, 910-019
79398 910-019 Volvo 4.00" 4 80mm Each 2 Days $181.84
$167.90
 
Flexible Shaft Coupling, 910-020
79399 910-020 Volvo 4.00" 4 80mm Each 2 Days $181.84
$167.90
 
Flexible Shaft Coupling, 910-021 *SPECIAL ORDER NON RETURNABLE*
79400 910-021 Enfield, Sonic 4.00" 2 3.00" Each 5 Days $184.94
$170.77
 
Flexible Shaft Coupling, 910-022
79401 910-022 Twin Disc 9.00" 8 7.50" Each 2 Days $1,688.61
$1,559.20
 
Flexible shaft Coupling, 910-024
79402 910-024 Twin Disc 10.50" 8 8.750" Each 2 Days $1,988.32
$1,835.94
 
Flexible Shaft Coupling, 910-025
79403 910-025 Borg Warner, PRM, MPM, Twin Disc 5.75" 6 4.75" Each 2 Days $634.72
$586.08
 
Flexible Shaft Coupling, 910-026
79404 910-026 Twin Disc, MPM, Hurth 5.75" 6 4.75" Each 2 Days $728.31
$672.49
 
Flexible Shaft Coupling, 910-029
79405 910-029 Borg Warner, Hurth, Volvo 5.00" 4 4.25" Each 2 Days $567.24
$523.77
 
Flexible Shaft Coupling, 910-030
79406 910-030 11.50" 8 9.75" Each 2 Days $3,057.48
$2,823.16
 
Flexible Shaft Coupling, 910-032
79407 910-032 Borg Warner, PRM, MPM, Twin Disc 5.75" 6 4.75" Each 2 Days $1,113.06
$1,027.76
 
Flexible Shaft Coupling, 910-033
79408 910-033 Twin Disc, MPM, Hurth 5.75" 6 4.75" Each 2 Days $1,113.06
$1,027.76
 
Flexible Shaft Coupling, 910-036
79409 910-036 Twin Disc 5.00" 4 4.125" Each 2 Days $335.58
$309.86
 
Flexible Shaft Coupling, 910-037
79410 910-037 Yanmar 5.12" 4 4.25" Each 2 Days $335.58
$309.86
 
* Leaves Warehouse: Does not include Weekends and Holidays.
When will my order arrive? Add the Estimated Leaves Warehouse Time + Estimated Shipping Time.
Shipping Info

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Additional Description
The polyurethane disc is backed up by two metal compression straps, one on either side of the flexible coupling. These metal straps hold the system in constant compression, whether the drive train is in forward or reverse. This feature extends the life of the system dramatically.

The R & D Flexible Coupling will also absorb shock loads, resulting from gear changes or the propeller striking a submerged object. The polyurethane disk will distort with light shock loads and is designed to be sacrificial in the event of severe shock load, saving on expensive drive train repairs. If the disc is destroyed from massive shock load, the metal compression straps keep the coupling intact, ensuring that the drive system is functional in both forward and reverse.

Review and FAQ Center


Question
PYI shaft flexible coupling - will it reduce vibration?

On sailboat engine,with a Yanmar 2GM13 with 1 inch shaft, does this PYI coupling reduce vibration?

Answer

Yes it will reduce shaft vibration to some degree. Having all the parts aligned is key – there are also shaft couplers that will reduce vibration.

Submitted by: bobB
 

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