Jiangsu, China
Business Type:
Manufacturer/Factory & Trading Company
Year of Establishment:
Plant Area:
1500.0 square meters
Management System Certification:
ISO 9001, ISO 9000
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available

Backstop, Sprag Clutch, One Way Clutch manufacturer / supplier in China, offering Complete Freewheels/Backstop/Overrunning Clutch with Sprags (FRS400), Cam Clutch Sprag Type One Way Bearing Cka 4090 Ck-A4090, Gez12es-Gez152es High Misalignment Spherical Plain Radial Bearing and so on.

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Supplier Homepage Products overrunning clutch (sprag clutch) Complete Freewheels/Backstop/Overrunning Clutch with Sprags (FRS400)

Complete Freewheels/Backstop/Overrunning Clutch with Sprags (FRS400)

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Min. Order / Reference FOB Price
1 Piece US $99/ Piece
Port: Shanghai, China
Production Capacity: 10000PCS/Year
Payment Terms: T/T, Western Union, Paypal, Money Gram
Rolling Body: Ball Bearings
The Number of Rows: Single
Outer Dimension: Extra Large (440mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing

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Basic Info

Model NO.: FRS400
Separated: Unseparated
Model: Frs400
Type: Sprag
Seals Type: Sealed
Place of Origin: Changzhou China(Mainland)
Name: Complete Freewheels/Backstop
Package: Single Box or as Your Requirements
Delivery: 10-15days
OEM: Accept
Precision: P6
Port: Shanghai;Ningbo
Trademark: SUMA or OEM
Transport Package: Single Box
Specification: P6
Origin: Changzhou
HS Code: 84836000

Product Description

Product Description:
Complete Freewheels FR are sealed sprag freewheels in inch dimension with ball bearings.
They are supplied oil-filled and ready for installation. The freewheels FR are used as:
Overrunning Clutches
Indexing Freewheels
In addition to the standard type, three other types are available for extended service life.
Nominal torques up to 27 500 lb-ft. Bores up to 7 inch. Many standard bores are available.

 The parameter of the FB series Complete Freewheels
Freewheel SizeNominal torque MNMax speedFreewheel SizeNominal torque MNMax speedFreewheel SizeNominal torque MNSprag lift-off at inner ring
Max speedFreewheel SizeNominal torque MNSprag lift-off at
inner ring speed
Max speed
Inner ring freewheels
Outer ring freewheels
Inner ring freewheels
Outer ring freewheels
Inner ring freewheels
Onner ring drivesOuter ring freewheels
Inner ring drives
Freewheel SizeBored
Standard bores
max. inchD
F inchG
L inchH
T inchZ*Weight
FR 3000,5000,6500,750      0,7503,0000,0630,250-282,5000,3750,7502,62543,5
FR 4000,5000,6250,7500,8751,0001,125   1,1253,5000,0320,312-242,7500,5000,7502,87546,0
FR 5000,8751,0001,1251,2501,312    1,3124,2500,0630,312-243,5000,6251,0003,625410,0
FR 5501,2501,3121,5001,625     1,6254,7500,0630,312-243,2500,5400,7504,250612,0
FR 6001,2501,3751,4381,5001,6251,6881,7501,9382,0002,0005,3750,0630,312-243,7500,6251,0004,750619,0
FR 6501,9382,0002,2502,4382,500    2,5006,5000,0630,375-243,5000,7501,0005,750824,0
FR 7001,9382,0002,2502,4382,5002,7502,938  2,9387,1250,0630,375-245,0000,7501,0006,2508**42,0
FR 7502,4382,5002,9383,0003,2503,438   3,4388,7500,0630,500-206,0000,8751,2507,0008**83,0
FR 7752,7502,9383,0003,2503,4383,5003,750  3,7509,7500,0630,500-206,0000,8751,2508,500896,0
FR 8003,0003,2503,4383,5003,7503,9374,0004,2504,5004,50010,0000,0630,500-206,0000,8751,2508,9378102,0
FR 9004,0004,4384,5004,9385,0005,438   5,43812,0000,0630,625-186,3751,0001,3759,75010156,0
FR 10005,7505,9386,0006,7506,8757,000   7,00015,0000,0630,625-186,6251,0001,37511,75012250,0
Application example
Complete Freewheels FRS 600 in both drive units of a transport system with a conveyor belt that moves both forward and backward (reversible operation). In order to ensure that the conveyor belt is moved under tension, forward movement is driven by drive unit I, reverse movement by drive unit II. The reewheels automatically disengage the respective non working drive, eliminating the need for expensive external clutches or brakes. For forward movement, drive unit II is started in freewheeling direction of freewheel II; free-wheel II is in freewheeling operation and disengages drive unit II from the conveyor belt. Afterwords drive unit I is started in the locking direction of the freewheel I; freewheel I is in driving operation and the conveyor belt is moved forward by drive unit I. The speed of drive unit I is lower than that of drive unit II. Thus freewheel remains in freewheeling operation and drive unit II is not improperly engaged.
For reverse movement, the drive units are started in reverse order and direction of rotation
at the corresponding speeds.
The customer attachment part is centered on the external diameter D and then bolted on to
the face. The tolerance of the shaft must be + 0 / - 0,001 inch and the tolerance of the pilot diameter D of the attachment part must be - 0 / + 0,002 inch.

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