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, Overrunning Clutch, Indexing Freewheel manufacturer / supplier in China, offering Internal Freewheels Fdfd20 Backstop with Sprags, 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

Internal Freewheels Fdfd20 Backstop with Sprags

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $5/ Piece
Port: Shanghai, China
Production Capacity: 10000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Model: Fd20
Type: Cfh
Outer Diameter: 34mm
Inner Diameter: 12mm
Weight: 0.1kg
Width: 16mm

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Basic Info

Model NO.: FD20
Material: Gcr15
OEM: Accept
Delivery: 10-15days
Trademark: SUMA or OEM
Transport Package: Single Box or as Your Requirements
Specification: P6
Origin: Changzhou, Jiangsu, China
HS Code: 84836000

Product Description

                                                                         Internal Freewheels Fdfd20 Backstop with Sprags

Data Sheet
Material   GCr15
Outer Diameter                               34-130 mm
Bore Size12-105 mm
Weight0.1-0.7 kg 
Width16-35 mm
Delivery Time7-10days
ApplicationGearbox,reducer,other machines

Internal Freewheels FD
for press fit on the outer ring
with sprags, available in three types
Internal Freewheels FD are sprag freewheels without an inner ring. The customer s hardened
and ground shaft is used as the inner track. The freewheels FD are used as:
 Overrunning Clutches
 Indexing Freewheels
The standard type and type with P-grinding for increased service life and indexing accuracy do
not have bearing support. In the case of the standard type, every second sprag has been be
replaced by a cylindrical roller; this freewheel can accept radial forces. Nominal torques up to 2 400 Nm. The torque is transmitted on the outer ring by press fit.
Freewheel SizeTypeNominal t orque
Max. speed
Inner ring freewheels/
overruns min-1
Outer ring freewheels/
overruns min-1
TypeNominal t orque
Max. speed
Inner ring freewheels/
overruns min-1
Outer ring freewheels/
overruns min-1
bearing support
dynamic C
Load rating of
TypeNominal t orque
FD        12CFH114 2254 250CFR64 2254 2507 6004 200CFP5121634450,1
FD        15CFH163 8753 925CFR83 8753 9257 8004 200CFP7152037500,1
FD        20CFH283 3753 450CFR143 3753 4508 3204 200CFP12202042550,1
FD        25CFH482 9003 050CFR242 9003 05010 7005 600CFP21252047600,1
FD        30CFH752 5252 675CFR362 5252 67512 9007 000CFP32302052650,1
FD        40CFH1601 9002 150CFR711 9002 15015 0008 400CFP71402262800,1
FD        50CFH2601 4751 775CFR1201 4751 77518 40011 300CFP120502272950,2
FD        65CFH4301 2001 550CFR2001 2001 55021 40014 100CFP2106525901200,3
FD        80CFH6509501 350CFR3009501 35023 80017 800CFP32080251101400,6
FD 105CFH2 4008001 175CFR1 1008001 17548 60045 000CFP1 200105351301650,7
Application example
Two Internal Freewheels FD 40 CFR of standard type with bearing support as overrunning
clutches in the drive of the transport rollers in a packaging distribution unit. In normal oper ation, the transport rollers are driven by means of the freewheels that are working in driving
operation. At the withdrawal station, the arriving packages can easily slip off as the drive
is overrun by the freewheel (freewheeling operation).
Internal freewheels FD in type standard and type with P-grinding are without bearing support.
Concentric alignment of inner and outer ring must be provided by the customer. The permissible run out (T.I.R.) must be observed. The torque is transmitted on the outer ring by
press fit. In order to transmit the torques specified in the table, the outer ring must be accommodated in a housing with an external diameter K. The housing is made of steel or grey
cast iron in minimum quality GG-20. When using other housing materials or smaller external
diameters, we urge you to contact us regarding the transmissible torque.The tolerance of the housing bore D must be ISO P6.
The permissible operating temperature of thefreewheel is - 40°C to 80°C.
An oil lubrication of the specified quality must be provided.
Example for ordering
Freewheel size FD 12, standard type:
? FD 12 CFH

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