Features

Integrated Freewheels FXM are sprag free -wheels without bearing support and with sprag

lift-off X.

The sprag lift-off X ensures a wear-free freewheeling operation when the inner ring rotates at high speed.

The freewheels FXM are used as:

1. Backstops

2. 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 888 000 N.m.

Bores up to 460 mm. Many standard bores are available.

Sprag lift-off X

Integrated Freewheels FXM are equipped with sprag lift-off X. The sprag lift-off  X is used for backstops and  overrunning clutches, provided that in freewheeling operation the inner ring is rotating at high speed and 

providing with overrunning clutches that the driving operation is conducted at low speed. In freewheeling 

operation, the centrifugal force F C causes the sprag to lift off from the outer track. In this operating state, the 

freewheel works wear-free, i.e. with unlimited service life.

Figure 64-2 shows a freewheel with sprag lift-off  X in freewheeling  operation . The sprags, which are  supported in a cage connected with the inner ring, rotate with the inner ring. The centrifugal force F C that is 

applied in the center of gravity S of the sprag turns the sprag counterclockwise and rests against the support 

ring of the cage. This results in the gap a between the sprag and the outer track; the freewheel works with out 

contact. If the inner ring speed decreases to such an extent that the effect of the centrifugal force on the sprag 

is less than that of the spring force F F , the sprag again rests on the outer ring and the freewheel is ready to 

lock (figure 64-3). If used as an overrunning clutch, the driving speed must not exceed 40% of the lift-off speed.

Changzhou Suma Precision Machinery Co., Ltd(Changzhou Tianniu Clutch Factory)is a manufacturer specialized in Producing Various cam clutch, one way bearing, one way clutch, backstop clutch, overrunning clutch and other bearings with high technology. 

We are following "Best Quality, Best Price, Fast Delivery, Best Serves" to make all of our old and new customers satisfied. 

 Pre-sale service:

We will delivery the goods in 10 days after your order is confirmed.

After sale service:

Our factory provide technical assistance to support every doubt during usage and maintenance.

Q: How do you pack the FXM sprag type clutch ?

A: Usually FXM sprag type clutch are packed in the wooden box. It can be done as your specfic demands.

Q: Can i get the samples of FXM sprag type clutch from you?

A: It is highly encouraged to ask for the samples for quality check. 

Q: Can you promise to deliver the FXM sprag type clutch in time?

A: Credit always ranks the top on the list. We will absolutely deliver the goods in 10 days after your order is confirmed. 

Any needs, pls feel free to contact me at any time !