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

Overrunning Clutch, One Way Clutch, Backstop manufacturer / supplier in China, offering Complete Freewheels with Hydrodynamic Sprag Lift-off for Multimotor Drives, Nfs200 One Way Indexing Clutch Roller Type, Complete Freewheel/Overrunning Clutch with Shaft Coupling (FR...300CA) and so on.

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Supplier Homepage Product overrunning clutch (sprag clutch) Complete Freewheels with Hydrodynamic Sprag Lift-off for Multimotor Drives

Complete Freewheels with Hydrodynamic Sprag Lift-off for Multimotor Drives

FOB Price: US $100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100/ Piece
Get Latest Price
Production Capacity: 2000PCS/Month
Transport Package: Single Box or as Your Requirements
Payment Terms: L/C, T/T, D/P, Paypal, Money Gram, Western Union

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Basic Info
  • Model NO.: FKh 94
  • The Number of Rows: Double
  • Material: Bearing Steel
  • Load Direction: Radial Bearing
  • Model: Fkht94
  • Nominal Torque: 2500nm
  • Inner Ring Drives: 1800r/Min
  • Inside Diameter: 60mm
  • OEM: Accept
  • Trademark: SUMA or OEM
  • Origin: Changzhou, Jiangsu, China
  • Rolling Body: Ball Bearings
  • Outer Dimension: Small (28-55mm)
  • Spherical: Non-Aligning Bearings
  • Separated: Unseparated
  • Type: Sprag
  • Outer Ring Overruns: 1800r/Min
  • Outside Diameter: 210mm
  • Width: 120mm
  • Export: Worldwide
  • Specification: P6
  • HS Code: 84836000
Product Description
Complete Freewheels FKh with hydrodynamic sprag lift-off are typically used in cases where
an assembly can be driven from two or more motors or turbines at the same or similar high
speed. Complete Freewheels FKh are sealed sprag freewheels with ball bearings. They are supplied oil-filled and ready for installation. The freewheels FKh are used as:
Overrunning Clutches
if the speeds in freewheeling operation and in driving operation are the same or similarly high.
Nominal torques up to 14 000 Nm. Bores up to 95 mm.
Application example
Two Complete Freewheels FKh 28 ATR as overrunning clutches in the drive system of a fan.
The fan can be driven either by an electric motor or by a turbine. The freewheels between
the fan and the two drive assemblies automatically engage the working drive with the fan
and in each case disengage the drive that is no longer giving power. The freewheels replace
actuated clutches, which require an additional activation when changing over from one drive
to another. The hydrodynamic sprag lift-off is the most suitable type for a wear-free freewheeling operation if the speeds in driving operation are the same or similarly high to those speeds in freewheeling operation.
Freewheel SizeTypeNominal torque
Max. speedBoredB
Outer ring overruns min-1Inner ring drives min-1Standard
max mm
FKh 24ATR1 1003 0003 0003540*901701,0M 101199513511569,6
FKh 28ATR1 8002 0002 0004550*1031861,0M 1011111051351151214,0
FKh 94ATR2 5001 8001 80060601122107,0M 101691201701501019,0
FKh 106ATR4 2001 6001 6007075*1162507,5M 121881252001801225,0
FKh 148ATR7 0001 6001 6009095*1562917,5M 162591652502251252,0
FKh 2.53ATR14 0001 6001 6009095*2413452,0M 162562452502201698,0

The customer attachment part is centered on the diameter R and then bolted on to the face.
The installation must invariably take place in such a way that the drive (driving operation) is
carried out via the inner ring and the outer ring overruns in freewheeling operation. 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 FKh 28, type with hydrodynamic sprag lift-off and 50 mm bore:
FKh 28 ATR, d = 50 mm
When ordering, please also specify the
freewheel direction of the outer ring when
view ed in direction X:
counterclockwise free or
clockwise free
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