Data Sheet

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. 

Our Advantages
1. Advanced producing equipment.
2. Strict requirement for the raw material
3. Complete&perfect process flow
4. Good quality of each batch of the product
5. Different grades of price for different quality

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: Why do we choose your company?

A: We always insist quality first. We have our bearing factory, therefore we have advantage in quality control and price of one way clutch bearing.

Q:What is the delivery time?

A: Most of the bearing we have stock. For small quantity, we will arrange delivery within 15 days.

Q: What is your payment term?

A: Our payment term include L/C, T/T, Western Union, Paypal etc.

Q: Can you send bearing samples first?

A: Yes, we can send bearing samples of one way clutch bearing to check quality first.

If you have any needs,pls contact me at any time!