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

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  • 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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    Viewing 1 - 20 of 76 products
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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. 184-5746
    Mfr. Part No.BB25-1K-K
    BrandTsubaki
    £38.27
    Each
    Units
    BB-1K-K 25mm 52mm 15mm 78Nm 1400 (Outer Race) RPM, 2500 (Inner Race) RPM 10700N 6300N Inner Race -
    RS Stock No. 184-5770
    Mfr. Part No.TSS60
    BrandTsubaki
    £177.42
    Each
    Units
    TSS 60mm 110mm 22mm 649Nm 460 (Outer Race) RPM, 910 (Inner Race) RPM - - Inner Race -
    RS Stock No. 184-5747
    Mfr. Part No.BB30-1K-K
    BrandTsubaki
    £53.28
    Each
    Units
    BB-1K-K 30mm 62mm 16mm 140Nm 1100 (Outer Race) RPM, 2000 (Inner Race) RPM 11900N 7900N Inner Race -
    RS Stock No. 184-5771
    Mfr. Part No.TFS12
    BrandTsubaki
    £85.52
    Each
    Units
    TFS 12mm 35mm 13mm 18Nm 2300 (Outer Race) RPM, 4500 (Inner Race) RPM - - Inner Race -
    RS Stock No. 174-1070
    Mfr. Part No.HF3520-L564
    BrandINA
    £24.37
    Each
    Units
    HF 35mm 42mm 20mm 121Nm 3900rpm - - - -
    RS Stock No. 184-5748
    Mfr. Part No.BB35-1K-K
    BrandTsubaki
    £37.48
    Each
    Units
    BB-1K-K 35mm 72mm 17mm 173Nm 1000 (Outer Race) RPM, 1800 (Inner Race) RPM 13500N 9700N 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. 184-5772
    Mfr. Part No.TFS15
    BrandTsubaki
    £110.52
    Each
    Units
    TFS 15mm 42mm 18mm 28Nm 1800 (Outer Race) RPM, 3500 (Inner Race) RPM - - Inner Race -
    RS Stock No. 174-1071
    Mfr. Part No.HFL3030-L564
    BrandINA
    £19.21
    Each
    Units
    HFL 30mm 37mm 30mm 90Nm 4500rpm 11600N 16900N - -
    RS Stock No. 184-5759
    Mfr. Part No.TSS10
    BrandTsubaki
    £75.05
    Each
    Units
    TSS 10mm 30mm 9mm 12Nm 2300 (Outer Race) RPM, 4500 (Inner Race) RPM - - Inner Race -
    RS Stock No. 146-5268
    Mfr. Part No.ASNU 30
    BrandStieber
    £284.71
    Each
    Units
    63 30mm 72mm 27mm 255Nm 1400 (Inner) rpm, 2200 (Outer) rpm - - Inner and Outer Race 14Ncm
    RS Stock No. 146-5253
    Mfr. Part No.CSK 35-PP
    BrandStieber
    £152.93
    Each
    Units
    6207 35mm 72mm 17mm 175Nm 3600rpm 12.6kN 7.28kN Inner and Outer Race 5.8Ncm
    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. 184-5744
    Mfr. Part No.BB17-1K-K
    BrandTsubaki
    £45.31
    Each
    Units
    BB-1K-K 17mm 40mm 12mm 43Nm 1900 (Outer Race) RPM, 3500 (Inner Race) RPM 7000N 3700N Inner Race -
    RS Stock No. 184-5767
    Mfr. Part No.TSS45
    BrandTsubaki
    £118.77
    Each
    Units
    TSS 45mm 85mm 19mm 347Nm 1300 (Inner Race) RPM, 650 (Outer Race) RPM - - Inner Race -
    RS Stock No. 184-5749
    Mfr. Part No.BB40-1K-K
    BrandTsubaki
    £44.96
    Each
    Units
    BB-1K-K 40mm 80mm 22mm 260Nm 1800 (Inner Race) RPM, 900 (Outer Race) RPM 14500N 11700N Inner Race -
    RS Stock No. 137-1800
    Mfr. Part No.HFL1626-L564
    BrandINA
    £27.03
    Each
    Units
    - 16mm 22mm 26mm - - 7400N 9000N - -
    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. 184-5780
    Mfr. Part No.TFS45
    BrandTsubaki
    £180.61
    Each
    Units
    TFS 45mm 100mm 36mm 756Nm 1100 (Inner Race) RPM, 550 (Outer Race) RPM - - Inner Race -
    RS Stock No. 184-5765
    Mfr. Part No.TSS35
    BrandTsubaki
    £87.01
    Each
    Units
    TSS 35mm 72mm 17mm 136Nm 1600 (Inner Race) RPM, 800 (Outer Race) RPM - - Inner Race -
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