Sprag Clutches

High Torque Capacity Clutches

These complete units are designed with built-in roller bearings and ball bearings making it the most powerful and robust clutch in our product line. Therefore, this is great for machines that require a heavy load and high torque from the clutch.

The torque capacity of these is 53 to 588 Mn, and they have a bore (ID) size of 10 to 60 mm (0.393 to 2.362 in).

We stock GMN’s FP, FPD, FN, and FND series sprag clutch units.

Specs at a glance:

• 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 and/or Mounting Tab
• Bearing Style: Integrated Ball and Roller Bearings
• Lubrication: Oil or Grease
• Seals: Rubber Seals or No Seals

Low to Med Torque Capacity. Our Most Popular Clutch Line.

These ball-bearing clutches are economical and are designed with ball bearings only. They don’t have roller bearings like the complete units.

Similarly, the sizes are matched to 6200 radial ball bearings and most importantly, this product line is a good choice for low to medium torque requirements.

Torque capacity of our ball bearing clutches is 53 to 267 Mn, and the bore (ID) size ranges from 17 to 40 mm (0.669 to 1.57 in).

We stock GMN’s FK, FKN, and FKNN series ball bearing clutches.

Specs at a glance:

• Clutch Width (mm): 12 to 18
• Operating Temperature: 284°F (140°C) or on request, 338°F (170°C)
• ID Size Range (mm): 17 to 40
• OD Size Range (mm): 40 to 80
• Torque (Nm): 53 to 267
• Inner Ring: Press Fit and/or Keyway
• Outer Ring: Press fit and/or Keyway
• Bearing Style: Integrated Ball Bearing
• Lubrication: Grease
• Seals: Rubber Seals or No Seals

Low to High Torque Capacity.

Our 400 series one-way bearing element comes with either mounting rings or without. The components consist of a cage, sprags, and a spring.The FE 400 series is a great option if you need a large number of clutches but can’t sacrifice torque requirements.

These bearings are good for large orders and low to high torque needs (1 to 2673 Nm). The bore (ID) size varies from 2 to 240 mm (0.078 to 9.448 in).

Specs at a glance:

• Clutch Width (mm): 7 or 12
• Operating Temperature: Max 338°F (170°C)
• ID Size Range (mm): 2 to 240
• OD Size Range (mm): 10 to 236
• Torque (Nm): 4 to 14,060
• Inner Ring: Press Fit and/or Keyway
• Outer Ring: Press fit
• Bearing Style: N/A
• Lubrication: Oil or Grease
• Spring Types: Tension or Meander
• Cage Material: Steel or Plastic

Also known as a hold-back clutch, our backstopping clutches prevent component rotation from moving in a reverse direction. This is a great option for high torque applications.

We stock GMN’s RA series backstopping clutches.

We offer roller ramp clutches for heavy duty applications. Our VS, VSNU, VF, VGF, VGV, VGL(P) and VEK series vary in support and sizes.

Our FE 8000 series are among our most popular high torque capacity clutches. The FE 8000 series offers the highest torque capacity with no RPM limits.