Gold Member Since 2014
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Changzhou Suma Precision Machinery Co., Ltd.

Sprag Clutch, Overrunning Clutch, Backstop manufacturer / supplier in China, offering Cam Type Backstop One Way Clutch (sptag clutch) (PB series), Asnu20 Roller Type Freewheel Overrunning Clutch, 200 Series Backstop One Way Clutch and so on.

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Cam Type Backstop One Way Clutch (sptag clutch) (PB series)

FOB Price: US $49 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $49/ Piece
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Port: Shanghai, China
Production Capacity: 5000PCS/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: PB
  • The Number of Rows: Single
  • Material: Bearing Steel
  • Load Direction: Radial Bearing
  • Model: Pb
  • Inner Race: 700-1800r/Min
  • Weight: 0.23-0.69kg
  • OEM: Accept
  • Export: Worldwide
  • Trademark: SUMA or OEM
  • Specification: P6
  • HS Code: 84836000
  • Rolling Body: Ball Bearings
  • Outer Dimension: Small (28-55mm)
  • Spherical: Non-Aligning Bearings
  • Separated: Unseparated
  • Type: Cam/Sprag
  • Drag Torque: 0.20-0.59n.M
  • Outer Race: 300-900r/Min
  • Port: Shanghai;Ningbo
  • Delivery: 10-15days
  • Transport Package: Single Box or as Your Requirements
  • Origin: Changzhou
Product Description
Cam Type Backstop One Way Clutch (sptag clutch) (PB series)
Installation and Usage
1. Concentricities of the inner race and the outer race are maintained by the plain bearing located between the outer race and the shaft. Radial load which works on the outer race is also supported by this plain bearing. The shaft must therefore be extended through the clutch outer race end.
2. Recommended shaft tolerances are as follows:
3. Do not use the PB Series Cam Clutch as a coupling. Use with a flexible coupling when
connecting two shafts.
4. Specify right (RH) or left hand (LH) inner race drive viewed from the end marked by the arrow in the illustration above. Check if the rotation of the clutch is correct before being run-in.
5. For indexing use, oil lubrication is recommended.
6. Key to be used should be in accordance with JIS B1301-1959
7. Thrust load should be supported by other devices, not by the Cam Clutch.
8. The bore of the driven member, such as the sprocket on the clutch outer race, should meet H6 or H7 tolerance of the JIS standard.

Detail Images
Cam Type Backstop One Way Clutch (sptag clutch) (PB series)Cam Type Backstop One Way Clutch (sptag clutch) (PB series)Cam Type Backstop One Way Clutch (sptag clutch) (PB series)Cam Type Backstop One Way Clutch (sptag clutch) (PB series)
Dimensions and Capacities


Bore Size






 Outer Race

Filler Plug
Inner RaceOuter RaceDia.
KeywayGK   L
0.201,800900150104x1.550502322252125.74× 2.5160.23M6× P1.0
0.201,800900150165x270603232352538.85× 3.0200.58M6× P1.0
0.201,500800150205x2827338383733415× 3.0271.1M6× P1.0
0.291,200650150257x3858345404533427× 4.0271.6M6× P1.0
0.391,00040015031.510x3.59295604156374410 × 4.5282.5M6× P1.0
0.398003001504010x3.51001136550663752.610 × 4.5293.6M6× P1.0
0.597003001504512x3.51121337554764157.312 × 4.5306.0M6× P1.0
Cam Type Backstop One Way Clutch (sptag clutch) (PB series)
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