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GMN High Torque Sprag Clutch Selection Options

GMN Complete Sprag Clutches combine roller bearings and ball bearings to deliver maximum strength and durability. Built for precision, they’re an excellent choice for applications that demand high torque and the ability to handle heavy loads.

  • High torque capacity (53 to 588 Nm)
  • Includes built-in roller & ball bearing support
  • Supports heavy loads

These complete units—also commonly referred to as “one-way bearings” or “freewheel clutches”—are designed with roller bearings & ball bearings. This bearing support is what makes these clutches the workhorse of GMN’s high precision sprag clutch line.

Clutch Width (mm)
27 (open) or 34 (sealed)
Operating Temperature
212°F (100°C) or 284°F (140°C)
ID Size Range (mm)
10 to 60
OD Size Range (mm)
31 to 110
Torque (Nm)
60 to 588
Inner Ring
Press Fit and/or Keyway
Outer Ring
Press Fit
Bearing Style
Integrated Ball and Roller Bearings
Lubrication
Oil or Grease
Seals
Rubber Seals or No Seals

Product Table Key

FP
Press Fit at Inner & Outer Ring (Not Sealed)
FPD
Double Sealed with Press Fit at Inner & Outer Ring
FN
Keyway at Inner Ring & Press Fit at Outer Ring (Not Sealed)
FND
Double Sealed with Keyway at Inner Ring & Press Fit at Outer Ring
400 M
Meander Spring
400 Z
Tension Spring
Part Number Spring Type Bore Diameterd [mm]Outer DiameterD [mm]WidthW [mm]Nominal TorqueT [N⋅m]Nominal TorqueT [ft⋅lb]  
FP 422 M M (Meander) 10 26 27 60 44.300 Quote
FP 422 Z Z (Tension) 10 26 27 53 39.100 Quote
FP 427 M M (Meander) 15 31 27 94 69.300 Quote
FP 427 Z Z (Tension) 15 31 27 84 62 Quote
FPD 427 M M (Meander) 15 31 34 94 69.300 Quote
FPD 427 Z Z (Tension) 15 31 34 84 62 Quote
FN 437 M M (Meander) 15 41 27 176 129.800 Quote
FN 437 Z Z (Tension) 15 41 27 160 118 Quote
FND 437 M M (Meander) 15 41 34 176 129.800 Quote
FND 437 Z Z (Tension) 15 41 34 161 118.700 Quote
FP 432 M M (Meander) 20 36 27 133 98.100 Quote
FP 432 Z Z (Tension) 20 36 27 121 89.200 Quote
FPD 432 M M (Meander) 20 36 34 133 98.100 Quote
FPD 432 Z Z (Tension) 20 36 34 121 89.200 Quote
FN 442 M M (Meander) 20 46 27 223 164.500 Quote
FN 442 Z Z (Tension) 20 46 27 208 153.400 Quote
FND 442 M M (Meander) 20 46 34 223 164.500 Quote
FND 442 Z Z (Tension) 20 46 34 208 153.400 Quote
FP 437 M M (Meander) 25 41 27 176 129.800 Quote
FP 437 Z Z (Tension) 25 41 27 160 118 Quote
FPD 437 M M (Meander) 25 41 34 176 129.800 Quote
FPD 437 Z Z (Tension) 25 41 34 160 118 Quote
FN 453 M M (Meander) 25 58 27 343 253 Quote
FN 453 Z Z (Tension) 25 58 27 314 231.600 Quote
FND 453 M M (Meander) 25 58 34 343 253 Quote
FND 453 Z Z (Tension) 25 58 34 314 231.600 Quote
FP 442 M M (Meander) 30 46 27 223 164.500 Quote
FP 442 Z Z (Tension) 30 46 27 208 153.400 Quote
FPD 442 M M (Meander) 30 46 34 223 164.500 Quote
FPD 442 Z Z (Tension) 30 46 34 208 153.400 Quote
FN 459 M M (Meander) 30 64 27 411 303.100 Quote
FN 459 Z Z (Tension) 30 64 27 381 281 Quote
FND 459 M M (Meander) 30 64 34 411 303.100 Quote
FND 459 Z Z (Tension) 30 64 34 381 281 Quote
FP 448 M M (Meander) 35 53 27 286 210.900 Quote
FP 448 Z Z (Tension) 35 53 27 262 193.200 Quote
FPD 448 M M (Meander) 35 53 34 286 210.900 Quote
FPD 448 Z Z (Tension) 35 53 34 262 193.200 Quote
FN 463 M M (Meander) 35 68 27 461 340 Quote
FN 463 Z Z (Tension) 35 68 27 427 314.900 Quote
FND 463 M M (Meander) 35 68 34 462 340.800 Quote
FND 463 Z Z (Tension) 35 68 34 428 315.700 Quote
FP 453 M M (Meander) 40 58 27 343 253 Quote
FP 453 Z Z (Tension) 40 58 27 314 231.600 Quote
FPD 453 M M (Meander) 40 58 34 343 253 Quote
FPD 453 Z Z (Tension) 40 58 34 314 231.600 Quote
FN 470 M M (Meander) 40 75 27 550 405.700 Quote
FN 470 Z Z (Tension) 40 75 27 509 375.400 Quote
FND 470 M M (Meander) 40 75 34 550 405.700 Quote
FND 470 Z Z (Tension) 40 75 34 509 375.400 Quote
FN 473 M M (Meander) 45 78 27 588 433.700 Quote
FN 473 Z Z (Tension) 45 78 27 544 401.200 Quote
FND 473 M M (Meander) 45 78 34 588 433.700 Quote
FND 473 Z Z (Tension) 45 78 34 543 400.500 Quote
FP 463 M M (Meander) 50 68 27 461 340 Quote
FP 463 Z Z (Tension) 50 68 27 428 315.700 Quote
FPD 463 M M (Meander) 50 68 34 461 340 Quote
FPD 463 Z Z (Tension) 50 68 34 428 315.700 Quote
FP 473 M M (Meander) 60 78 27 588 433.700 Quote
FP 473 Z Z (Tension) 60 78 27 543 400.500 Quote
FPD 473 M M (Meander) 60 78 34 588 433.700 Quote
FPD 473 Z Z (Tension) 60 78 34 543 400.500 Quote

Complete Sprag Clutch Application Examples

  • Bucket Conveyors
  • Aviation - ‘Propeller Overspeed Protection’
  • Turnstiles & Revolving Doors

Note: All GMN clutches can be used in Backstopping, Indexing & Overrunning applications.

Not sure which sprag clutch is best for your application? Check out our guide or contact our engineers for support today!

 

All Markets & Applications

Other Helpful Resources About Complete Sprag Clutches

Sprag Clutch Guide
How Sprag Clutches Work
3 Ways a Sprag Clutch Stops the Rotation

Contact GMN Bearing USA Today!

Our bearing experts are here to help you find the complete sprag clutch that will best fit your application. Contact us or request a quote today! 

Request A Quote

800.323.5725

22935 Elkana Deane Lane
Katy, TX 77449

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