74 21 096 141 21096141 70mm Truck Propeller Shaft

Support Center Bearing 74 21 096 141 21096141 for Renault 70mm

Wear resistance of bearings

During the bearing task, not only rolling friction occurs between the ring, rolling element and the cage, but also sliding friction occurs, so that the bearing parts are constantly worn. In order to increase the wear of bearing parts, maintain bearing accuracy and stability, and extend service life, bearing steel should have good wear resistance.

Hardness of the bearing

Hardness is one of the important qualities of bearing quality and has an indirect influence on contact fatigue strength, wear resistance, and elastic limit. The hardness of the bearing steel under the operating conditions must reach HRC61~65, which enables the bearing to achieve higher contact fatigue strength and wear resistance.

Anti-rust performance of bearings

In order to prevent bearing parts and finished products from being corroded and rusted during processing, storage and use, it is requested that the bearing steel should have good rust resistance.

Bearing contact fatigue strength

Bearing under the action of periodic load, it is easy to cause fatigue damage when contacting the surface, that is, cracks and peeling appear, which is an important damage situation of the bearing. Therefore, in order to improve the service life of the bearing, the bearing steel must have a high contact fatigue strength.

Processing performance of bearing

In the production process, bearing parts have to go through many cold and hot processing procedures. In order to meet the small quantity, high efficiency and high quality requirements, the bearing steel should have good processing performance. For example, cold and hot forming performance, cutting performance, hardenability, etc.

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      Guangzhou Sub-Group Auto parts Co.,Ltd was established in 2000 and is located in baiyun district, Guangzhou, China. We have China's first-class truck auto parts professional capacity and export trade capacity. We have a strong and professional auto parts research team, professional control of product quality and suitable models. We supply high quality auto parts at the most competitive prices. Since its establishment, Sub-Group Auto parts has been dedicated to the production of all kinds of plastic parts for trucks, with perfect production capacity.

      In 2008, established the foreign trade department of auto parts, mainly operating Volvo, scania, FAW, weichai, cummins, dongfeng, American and Chinese auto parts and engineering machinery parts. We have the ability to develop new products that are not in our catalog, and we will do that in a timely manner and do our best to meet customer needs. Our production and development costs are very reasonable. Please contact us according to your special needs. We are glad to cooperate with you. At the same time, our highly skilled and qualified employees are proud to be a supplier of spare parts to global customers.

       We have a strong sourcing capability in the Chinese market. We fully understand the needs of our customers. We offer high quality products, competitive prices and first class service. We hope to establish good business relations and friendship with you in the near future.

FAQ

1. who are we?
We are based in Guangdong, China, start from 2015,sell to Mid East(30.00%),Central America(20.00%),North America(10.00%),Eastern Asia(10.00%),Domestic Market(5.00%),South Asia(5.00%),Northern Europe(5.00%),South America(5.00%),Southeast Asia(5.00%),Eastern Europe(5.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?

Mercedes Benz, Man, Volvo, IVECO, DAF, SCANIA, Renault, Ford
FUSO, UD, NISSAN, HINO, ISUZU
FAW, CAMC, JAC, FOTON, DAYUN, DongFeng

CAT,CAT,Komatsu, Hyundai, Doosan, Hitachi, John Deere, Daewoo, Case, XCMG, Sany

4. why should you buy from us not from other suppliers?
1.Our company has 20 years experience in auto parts development and production. Main projects, China Heavy Truck: Weichai, FAW, Yuchai... and imported trucks: Mercedes-Benz, Volvo, MAN, Scandinavia... and construction machinery: Komatsu, Cummins, etc.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,DAF,DES；
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German