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

Backstop Clutch, Overrunning Clutch, One Way Bearing Sprag manufacturer / supplier in China, offering High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel, One Way Bearing Over Run Clutch Truck Roller Clutch Gfrn35, Owc 1008 Needle Bearing Small One Way Bearings and so on.

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Supplier Homepage Product one way clutch (indexing clutch) High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel

High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel

FOB Price: US $50 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $50/ Piece
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Port: Shanghai, China
Production Capacity: 10000PCS/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: GFK
  • The Number of Rows: Single
  • Material: Bearing Steel
  • Load Direction: Radial Bearing
  • Product Name: One Way Bearing Sparg Freewheel
  • One Way Bearing Sparg Freewheel Od: 37mm
  • One Way Bearing Sparg Torque Capaicty: 51nm
  • One Way Bearing Bearing Series: 5904
  • One Way Bearing Delivery Time: 7-10 Days
  • Trademark: SUMA or OEM
  • Specification: GFK
  • HS Code: 84836000
  • Rolling Body: Ball Bearings
  • Outer Dimension: Small (28-55mm)
  • Spherical: Non-Aligning Bearings
  • Separated: Separated
  • One Way Bearing Sparg Freewheel ID: 20mm
  • One Way Bearing Sparg Freewheel Weight: 0.09kg
  • One Way Bearing Overrunning Speed: 5500r/Min
  • One Way Bearing Package: Wooden Box or Customizable
  • Port: Shanghai, Ningbo, Shenzhen
  • Transport Package: Single Box
  • Origin: Changzhou
Product Description
High Overrunning Speed GFK20 One Way Bearing Sprag Freewheel / Backstop Clutch 

Features of GFK one way bearing sprag

Type GFK is a sprag type freewheel integrated into a 59...Series ball bearing. This design provides high torque capacity for minimal outside diameter. It is a bearing supported type, delivered grease lubricated.

Oil bath lubrication is also possible. Whatever the lubrication type, seals should be provided, as illustrated on the next page.

Torque transmission must be ensured by a press fit assembly into a rigid outer housing with R6 tolerance, and onto a shaft with p5 tolerance.

Initial radial clearance has been provided to take into account this heavy press fit. Operating temperature range: -20° C to +100° C. Peaks up to +120° C are acceptable for short periods. Please contact us for higher temperatures.

TypeSize Overrunning speedsBearing seriesLoads Weight

dTKN1)n imax2)n amax3) CCC0C0DLr 
[mm][Nm][min-1][min-1] [N][N][N][N][mm][mm][mm][kg]
20 51 5500 4000 5904 5600 4400 2900 2750 37 23 0.50.09
25 65 5300 3800 5905 6300 5300 3450 3350 42 23 0.50.11
30 95 5000 3500 5906 7700 5500 4600 3650 47 23 0.50.13
35 204 4600 3200 5907 8200 8500 5200 5700 55 27 0.2
40 315 4200 3000 5908 8650 9300 5750 6700 62 30 0.3
45 370 3800 2500 5909 9200 9700 6350 7300 68 30 0.34
50 460 3400 2200 5910 9650 10000 6950 7800 72 30 0.36

Product Picture 
High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel
High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel
Company Information 

 Changzhou Suma Precision Machinery Co., Ltd(Changzhou Tianniu Clutch Factory)is a manufacturer specialized in Producing Various cam clutch, one way bearing, one way clutch, backstop clutch, overrunning clutch and other bearings with high technology. 
High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel
High Overrunning Speed Gfk20 One Way Bearing Sprag Freewheel

Q: How do you pack the goods?

  •  Small Items:

Each in small white box or Roll Pack - in 19x18x9CM carton box - 29*28*19CM carton box - Wooden box / Wooden pallet

  • Medium Items: 29*28*19cm carton box + Wooden box /Wooden pallet 
  • Heavy Items: Wooden Box / Wooden Pallet 

Q: Can i get the samples from you?

A: It is highly encouraged to ask for the samples for quality check. 

Q: Can you promise to deliver the goods in time?

  •    Small items: In stock. 
  •     Medium Items: 10-15 Days 
  •     Big items: 20-25 Days 

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