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, Indexing Freewheel manufacturer / supplier in China, offering Complete Freewheel with Torque Arm (FA), Cam Clutch Sprag Type One Way Bearing Cka 4090 Ck-A4090, Gez12es-Gez152es High Misalignment Spherical Plain Radial Bearing and so on.

Gold Member Since 2014
Audited Supplier

Complete Freewheel with Torque Arm (FA)

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $100/ Piece
Port: Shanghai, China
Production Capacity: 10000PCS/Year
Payment Terms: T/T, Western Union, Paypal, Money Gram
Model: Fa
Type: Sprag
Max Speed: 90-250rpm
Bore Size: 0.984-3.150inch
Weight: 2.-18.8lbs
Maximum Torque: 340-3690(Lb-FT)

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Basic Info

Model NO.: FA
Application: Low Speed Freewheeling Operations
OEM: Accept
Precision: P6
Trademark: SUMA or OEM
Transport Package: Single Box
Specification: P6
Origin: Changzhou
HS Code: 84836000

Product Description

                                                               Complete Freewheel with Torque Arm (FA)

Complete Freewheels FA with torque arm are sprag freewheels with sleeve bearings. They are grease-lubricated and require no maintenance. The freewheels FA are used as:
Indexing Freewheels
for applications with low speed freewheeling operation when used as a backstop or with a low to medium total number of actuations when used as an indexing freewheel.
In addition the standard type, two other types are available for extended service life and indexing accuracy. Maximum torques up to 3 690 lb-ft. Bores up to 3.15 inch.
Application example
Two Complete Freewheels FA 57 in the roller feed of a sheet metal processing machine. The indexing freewheel arranged on the left is driven via a bell crank with an adjustable lift. This enables an infinite setting of the feed. The backstop arranged on the right prevents the indexing rollers from running backwards while the indexing freewheel carries out its back stroke. Often, an additional small brake is provided in order to prevent the accelerated sheet metal strip from advancing.

Freewheel SizeTypeMaximum torque MM
Max.speed innerring freewheel
Bore d max. inch 
FA  37SF3402500.9841.3782.9920.4723.5431.3780.4532.2
FA  57SF9301701.6501.9693.9370.6304.9211.7720.5715.5
FA  82SF23601302.3602.3625.5120.7096.2992.3620.82712.2
FA 107SF3690903.1503.1506.6930.7877.0872.5590.88618.8

When used as a backstop, the back driving torque is supported by the torque arm. The torque arm must not be clamped into position. It must have 0.002 to 0.008 inch play in the axial and radial directions. When used as an indexing freewheel, the torque arm serves as the indexing lever arm. The torque arm is not heat treated enabling the customer alter the torque arm to suit his application. The recommended tolerance of the shaft is
+ 0 / - 0.001 inch.

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