BW-13231 GCr15 Centrifugal One Way Sprag Clutch Bearing

Sprag lift-off X

Internal Freewheels FXN 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 76-2 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. Thecentrifugal force F C that is applied in the center of gravity S of the sprag turns the sprag coun-terclockwiseand 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 FF , the sprag again rests on the outer ring and the freewheel is ready to lock (figure 76-3). If used as an overrunning clutch, the driving speed must not exceed 40% of the lift-off speed.

Dimension and Capacity

Pictures

Changzhou Suma Precision Machinery Co., Ltd was established in 2005, which was a professional and non-stop manufacturer for mechanical parts, integrates into R&D, Design, Manufacturing and Sales .

The main Catagories are :

One Way Clutch Bearing:  CSK, ASNU, AS , NF, FE, DC, FWD, BWC, AXK, AA, B200, BB, CKA, ... 

Backstop Clutch : BS, MZ, FSO, HPI,  PB, BS...R, NJ, NYD, NF, CKZ, RSBW, AV , ... 

Overrunning clutch:  FXM,  GFR, RSCI, RSXM, CKL-A, CKF-A, RSBI, GFK, GV, GVG, BSEU, ... 

Needle Roller Bearings: HF,HFL, RC, RCB, FC, FCB, OWC, EWC, 1WC, HK, SCE, BCE, IR, ...

Cam follower bearings : CF, KR, CFE, CFH, CYR, CYR...S, NATV, NATR, NUTR, KRV, RSTO, ...

Spherical Plain Bearings : GE, GE...ES-2RS, GE...DO-2RS, GEG...ES-2RS, GEEW...ES-2RS, GE...UK-2RS, GE...ET-2ES, ...

Advantage of Company 

• ​Germany Technology Introduction ensure goods reach an top-level quality . 
• Core Technical Team ensure ability to Find out - Work out problems more efficiently . 
• Over 15 Years Production Experience makes us easier to find out a solution from any industrial field . 
• Superior Equipment Production Line ensure goods produced under strictly quality control . 
• OEM / ODM available significantly save the customer's funds and enlarge the benefits. 

Advantage of Products 

• High Torque Transmission 
• High Load Capacity 
• Preferable Wear Resistance 
• Free Sample Quality Test Service （specially for small standard item）
• Pre-Lubricated ensure its Long Life Using Time 

Application Field 

  With a wide range of variety  ( Over 100 different patterns and more than thousands sizes available ), products are widely used in Printing Machine, Packaging Machine ,Conveyor System, Bucket Elevator, Gearbox , Reducer, Gearmotor, Electronics Toy, Hydraulic System and any power transmission industrial field. 

Market 

  With over 13 years experience, well equipped testing facilities and strict quality control, Changzhou Suma Precision Machinery Co., Ltd products sell well all over the world, the main markets are European, America, Canada, Brazil, India, Asia, etc . It was a certified enterprise with Quality Management System ISO9001:2015, SGS , Safety Certificate of Approval for Mining Products . In the meantime, with accurate control of key process and technical support from engineer team, customized products are also available. Stable product performance and reliable after sales service always are our only way to win customer.