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.

2005-8-8, Establishd Changzhou Suma Precision Machinery Co.,Ltd. At begining only produce some items of One way clutch bearings like CSK DC ASNU NFS GFR, etc .
2012-07-11, Technical Team do R&D , Develop new design of the backstop clutch / overrunning clutch which has big torque transmission, widely used in Mining, Mednical, Conveyor System, Reducer, Gearbox, etc . 

2015-03-16, Try to Step into the Needle roller bearings / Cam follower bearings to enlarge the market share . 

2018-10-15, Involved in the field of spherical plain bearings and bring great convenience for new and old customers. 

The business principle of Changzhou Suma Precision Machinery Co., Ltd is human- oriented , customer first, excellent quality, prestige guarantee and perfect service . We anticipate for the cooperation with you and create a better future.

Our Service :

1. Give Technical Guidance before order ensure no mistake purchase .
2. Online Trade-Assurance service make client more reliable to do internation business. 
3. Update production status frequently to make sure custom know exactly of every details .
4. 7/24 hours online quick answer to clear client doubt. 
5. Good package to protect no damage or harm during shipment . 
6. Supply Technical Manual for client do maintenance .
7. Any quality problem during the warranty period can be negotiated to be solved ( Except for vandalism ）

One Way Bearing / Sprag Clutch Package for your reference :

We always believe in that , Running a business is running the " Man " ，Only a united and cohesive team can produce high-quality products 。

So we Organize team building activities from time to time to enhance mutual exchanges .