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

Backstops, Overrunning Clutch, Sprag Clutch manufacturer / supplier in China, offering Bd25 Complete Freewheels with Ball Bearings, 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

Bd25 Complete Freewheels with Ball Bearings

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $50-1,000/ Piece
Port: Shanghai, China
Production Capacity: 10000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Separated: Unseparated
Load Direction: Radial Bearing
Material: Bearing Steel
Model: Bd 25
Type: Dx
Precisiom: P6

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Basic Info

Model NO.: BD25
Outside Diameter: 126mm
Inside Diameter: 35-40mm
Weight: 6.6kgkg
Width: 93mm
OEM: Accept
Package: Single Box or as Your Rrquirements
Port: Shanghai;Ningbo
Trademark: SUMA or OEM
Transport Package: Single Box or as Your Requirements
Specification: P6
Origin: Changzhou, Jiangsu, China
HS Code: 84826000

Product Description

Product Description

Complete Freewheels BD X are sealed sprag freewheels with ball bearings and sprag lift-off
X. They are supplied oil-filled. The sprag lift-off X ensures wear-free freewheel - ing operation when the inner ring rotates at high speed. The freewheels BD X are used as:
Overrunning Clutches
for applications with high speed freewheeling operation and when used as an overrunning
clutch with low speed driving operation. Nominal torques up to 42 500 Nm. Bores up to 150 mm.
Application example
Complete Freewheel BD 45 SX as an overrunning clutch on the shaft end of the high speed
rotating main drive of a textile machine. The sprocket is linked to an auxiliary drive. In normal
operation (freewheeling operation) the inner ring overruns and the outer ring is at a standstill
with the bolted on sprocket. During set-up, the machine is driven by the slowly running auxiliary drive via the chain drive and the freewheel that is working in the driving operation. With the high speed of the inner ring in freewheeling operation, the type sprag lift-off X is used; the sprags work in freewheeling operation without contact and hence are wear-free.
Freewheel SizeTypeNominal torque
Spraglift-off at inner ring speed
Max speedBore
Inner ring freewheels
Outer ring drives min-1 
BD 20DX4207501 70030030     3065,51060,75M 626577700,59063,8 
BD 25DX7007001 6002803540 4081,51260,75M 630593800,510566,6 
BD 30DX1 2506301 6002524550 5088,51510,75M 83661021001,5130610,3 
BD 40SX1 9004301 50017245556060102,51810,75M 103761161203,5160617,4 
BD 45SX2 3004001 50016055657070115,51961,25M 123861301305,0170822,4 
BD 52SX5 6003201 50012865758080130,52161,75M 144481501504,5190831,1 
BD 55SX7 7003201 25012875859090146,52461,75M 1448101701602,5215845,6 
BD 60SX14 5002501 1001008595100105182,52911,75M 1455102061902,5250878,2 
BD 70SX21 0002401 00096120  120192,53211,25M 1658102152105,0280893,4 
BD 100UX42 50021075084150  150248,54113,75M 2079102762706,536510198,4 
The customer attachment part is centered on the diameter R and bolted on to the face. The
pilot on the covers is particularly suitable for attaching smaller and narrower parts (sprockets,
gear wheels etc.). The customer must provide fastening screws of the necessary length in order to mount the attachment part. The tolerance of the shaft must be ISO h6 or j6 and the tolerance of the pilot diameter R of the attachment part must be ISO H7 or J7.
Example for ordering
Freewheel size BD 30, type with sprag lift-off X and 45 mm bore:
? BD 30 DX, d = 45 mm

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