Sprag Clutch Bearings

A sprag clutch bearing is a one way freewheel clutch that turns in a single direction. This type of bearing is usually supplied already filled with grease meaning it can be used straight away and requires little maintenance or additional grease before use

Freewheel bearings are characterised by their ability to only turn in one direction which means they can transmit torque from shaft to housing in one direction and allow free rotation in the other. Sprag type designs typically have a higher torque capacity than a similar sized ramp and roller type clutch.

RS Components have a range of sprag clutch bearings in different diameters to meet various bearing solution applications. Our sprag clutch bearings features keyways on both inner and outer races for increased torque and inner race only.

How does a sprag clutch bearing work?

The sprags are placed in a certain angled way which allows rotation in only one direction and will lock when force is applied in the opposite direction.

Typical Applications

  • Sprag clutches are suited for automotive industries such as transition systems to change gears smoothly
  • Conveyer drives
  • Hoist load brake in the event of mechanical failure
  • Fan drives
  • Pumps
  • Printing machines

...
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Description Price Series Inside Diameter Outside Diameter Race Width Torque Over-running Speed Dynamic Load Rating Static Load Rating Keyway Drag Torque
RS Stock No. 184-5736
Mfr. Part No.BB15
BrandTsubaki
£38.52
Each
Units
BB 15mm 35mm 11mm 29Nm 2000 (Outer Race) RPM, 3600 (Inner Race) RPM 5950N 3230N None -
RS Stock No. 184-5737
Mfr. Part No.BB17
BrandTsubaki
£37.70
Each
Units
BB 17mm 40mm 12mm 43Nm 1900 (Outer Race) RPM, 3500 (Inner Race) RPM 7000N 3700N None -
RS Stock No. 184-5759
Mfr. Part No.TSS10
BrandTsubaki
£78.05
Each
Units
TSS 10mm 30mm 9mm 12Nm 2300 (Outer Race) RPM, 4500 (Inner Race) RPM - - Inner Race -
RS Stock No. 146-5266
Mfr. Part No.ASNU 20
BrandStieber
£128.93
Each
Units
63 20mm 52mm 21mm 78Nm 2100 (Inner) rpm, 3100 (Outer) rpm - - Inner and Outer Race 1.9Ncm
RS Stock No. 184-5777
Mfr. Part No.TFS30
BrandTsubaki
£95.07
Each
Units
TFS 30mm 72mm 27mm 200Nm 1600 (Inner Race) RPM, 800 (Outer Race) RPM - - Inner Race -
RS Stock No. 184-5783
Mfr. Part No.TFS60
BrandTsubaki
£300.49
Each
Units
TFS 60mm 130mm 46mm 1975Nm 420 (Outer Race) RPM, 840 (Inner Race) RPM - - Inner Race -
RS Stock No. 184-5756
Mfr. Part No.BB35-2K-K
BrandTsubaki
£83.56
Each
Units
BB-2K-K 35mm 72mm 17mm 173Nm 1000 (Outer Race) RPM, 1800 (Inner Race) RPM 13500N 9700N Inner and Outer Race -
RS Stock No. 184-5738
Mfr. Part No.BB20
BrandTsubaki
£33.71
Each
Units
BB 20mm 47mm 14mm 61Nm 1600 (Outer Race) RPM, 3000 (Inner Race) RPM 8500N 4900N None -
RS Stock No. 184-5760
Mfr. Part No.TSS12
BrandTsubaki
£77.05
Each
Units
TSS 12mm 32mm 10mm 17Nm 2000 (Outer Race) RPM, 4000 (Inner Race) RPM - - Inner Race -
RS Stock No. 184-5771
Mfr. Part No.TFS12
BrandTsubaki
£88.94
Each
Units
TFS 12mm 35mm 13mm 18Nm 2300 (Outer Race) RPM, 4500 (Inner Race) RPM - - Inner Race -
RS Stock No. 146-5267
Mfr. Part No.ASNU 25
BrandStieber
£160.31
Each
Units
63 25mm 62mm 24mm 125Nm 1700 (Inner) rpm, 2600 (Outer) rpm - - Inner and Outer Race 5.6Ncm
RS Stock No. 146-5248
Mfr. Part No.CSK 35-M
BrandStieber
£85.24
Each
Units
6207 35mm 72mm 17mm 175Nm 3600rpm 12.6kN 7.28kN Inner and Outer Race 5.8Ncm
RS Stock No. 146-5262
Mfr. Part No.CSK 12-M
BrandStieber
£83.62
Each
Units
6201 12mm 32mm 10mm 9.3Nm 10000rpm 6.1kN 2.77kN Inner and Outer Race 0.7Ncm
RS Stock No. 184-5778
Mfr. Part No.TFS35
BrandTsubaki
£114.39
Each
Units
TFS 35mm 80mm 31mm 475Nm 1400 (Inner Race) RPM, 700 (Outer Race) RPM - - Inner Race -
RS Stock No. 184-5751
Mfr. Part No.BB17-2K-K
BrandTsubaki
£48.93
Each
Units
BB-2K-K 17mm 40mm 12mm 43Nm 1900 (Outer Race) RPM, 3500 (Inner Race) RPM 7000N 3700N Inner and Outer Race -
RS Stock No. 184-5741
Mfr. Part No.BB35
BrandTsubaki
£45.74
Each
Units
BB 35mm 72mm 17mm 173Nm 1000 (Outer Race) RPM, 1800 (Inner Race) RPM 13500N 9700N None -
RS Stock No. 184-5763
Mfr. Part No.TSS25
BrandTsubaki
£111.96
Each
Units
TSS 25mm 52mm 15mm 56Nm 1100 (Outer Race) RPM, 2200 (Inner Race) RPM - - Inner Race -
RS Stock No. 184-5757
Mfr. Part No.BB40-2K-K
BrandTsubaki
£100.26
Each
Units
BB-2K-K 40mm 80mm 22mm 260Nm 1800 (Inner Race) RPM, 900 (Outer Race) RPM 14500N 11700N Inner and Outer Race -
RS Stock No. 184-5774
Mfr. Part No.TFS20
BrandTsubaki
£114.18
Each
Units
TFS 20mm 52mm 21mm 84Nm 1300 (Outer Race) RPM, 2500 (Inner Race) RPM - - Inner Race -
RS Stock No. 146-5246
Mfr. Part No.CSK 20-M
BrandStieber
£77.99
Each
Units
6204 20mm 47mm 14mm 50Nm 6000rpm 9.4kN 4.46kN Inner and Outer Race 1.3Ncm