Complete Freewheels with Hydrodynamic Sprag Lift-off for Multimotor Drives

• Rolling Body: Ball Bearings
• The Number of Rows: Double
• Outer Dimension: Small (28-55mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Model NO.: FKh 94
• Separated: Unseparated
• Model: Fkht94
• Type: Sprag
• Nominal Torque: 2500nm
• Outer Ring Overruns: 1800r/Min
• Inner Ring Drives: 1800r/Min
• Outside Diameter: 210mm
• Inside Diameter: 60mm
• Width: 120mm
• OEM: Accept
• Export: Worldwide
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou, Jiangsu, China
• HS Code: 84836000
• Production Capacity: 2000PCS/Month

Product Description

PRODUCT DESCRIPTION
 
Features
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 Size	Type	Nominal torque MN Nm	Max. speed		Bored		B mm	D mm	F mm	G**	H mm	K mm	L mm	R mm	T mm	Z**	Weight kg
			Outer ring overruns min-1	Inner ring drives min-1	Standard mm	max mm
FKh 24	ATR	1 100	3 000	3 000	35	40*	90	170	1,0	M 10	11	9	95	135	115	6	9,6
FKh 28	ATR	1 800	2 000	2 000	45	50*	103	186	1,0	M 10	11	11	105	135	115	12	14,0
FKh 94	ATR	2 500	1 800	1 800	60	60	112	210	7,0	M 10	16	9	120	170	150	10	19,0
FKh 106	ATR	4 200	1 600	1 600	70	75*	116	250	7,5	M 12	18	8	125	200	180	12	25,0
FKh 148	ATR	7 000	1 600	1 600	90	95*	156	291	7,5	M 16	25	9	165	250	225	12	52,0
FKh 2.53	ATR	14 000	1 600	1 600	90	95*	241	345	2,0	M 16	25	6	245	250	220	16	98,0

 
 
Mounting
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