deep groove ball bearing 6308
6308 is a deep groove ball bearing, with an inner diameter: of 40mm outer diameter: of 90mm thickness: of 23mm, 6308 bearing is the most representative rolling bearing, which is widely used. It is suitable for high-speed and even extremely high-speed operation, and it is very durable and does not require frequent maintenance. This type of bearing has a small friction coefficient, high limit speed, simple structure, low manufacturing cost, and easy to achieve high manufacturing precision. The size range and form vary, and they are used in precision instruments, low-noise motors, automobiles, motorcycles, general machinery, and other industries. They are the most widely used type of bearings in the machinery industry. It mainly bears the radial load, and can also bear a certain amount of axial load. Mainly used in coal washing equipment, tailings recovery equipment, granulation equipment, wind separation equipment, brick machine equipment, sand washing equipment, shaking table equipment, spiral chute, concentration equipment, jigging machine, flotation equipment, classification equipment, permanent magnet magnetic separator, drum type magnetic separator, roller type Magnetic separators, iron removers, hydro cyclones, scale conveyors, screw conveyors, chain conveyors, industrial supplies, engineering hydraulic cylinders, forging machine tools, engineering machinery, mechanical instruments, motors, chemicals, transportation and other machinery, front wheels, generators, internal combustion engines, gas turbines, machine tool spindles, reduction gears, and other fields.
For deep groove ball bearings, the bearing load is too small during operation, which will cause sliding between the ball and the raceway, which will become cause scratches. This is especially true for large deep groove ball bearings with a heavy ball and cage weights. In many cases, bearings will corrode. There are many reasons for bearing corrosion. The most common factors in our daily life are the following:
1) Due to the poor sealing device, it is invaded by moisture, dirt, etc.;
2) Bearings are not used for a long time, beyond the rust prevention period, and lack maintenance.
3) The metal surface roughness is large;
4) Contact with corrosive chemical medium, the bearing is not cleaned cleanly, the surface is stained with dirt, or the bearing is touched with sweaty hands. After the bearing is cleaned, it is not packaged or installed in time, and it is exposed to the air for a long time. contaminate;
5) Ambient temperature and humidity and contact with various environmental media; the rust inhibitor fails or the quality does not meet the requirements.


| 外形尺寸 Boundary Dimensions | 型号 Designation | 额定载荷 Load Rating(KN) 动态 Dyn. 静态 stat | 疲劳极限载荷 Atigue Limit Load (KN) | 额定转速 speed ratings(rpm) | r1 r2 (min) | 安装尺寸 mounting dimensions | 质量Mass (KGS) | ||||||
| d | D | B | Cr Cor | Cu | ng oil | ng grease | da min | Da max | ra max | ||||
| 40 | 90 | 23 | 6308 | 42 | 25 | 1.5 | 13300 | 10700 | 1.5 | 49 | 81 | 1.5 | 0.64 |
| 40 | 90 | 23 | 6308 ZZ | 42 | 25 | 1.5 | 8200 | 6500 | 1.5 | 49 | 81 | 1.5 | 0.64 |
| 40 | 90 | 23 | 6308 2RS | 42 | 25 | 1.5 | 5000 | 4100 | 1.5 | 49 | 81 | 1.5 | 0.64 |
Why choose us?
- We are committed to continuous improvement and innovation in all aspects of our Deep Groove Ball Bearing products and services.
- Innovation and change, expand space, adapt to the market.
- We continuously invest in research and development to improve our Deep Groove Ball Bearings and stay ahead of the competition.
- Product quality is a pillar for an enterprise to survive and our company knows the importance of product quality.
- Our success is based on our commitment to excellence, innovation, and customer satisfaction in everything we do.
- We are a domestic quality deep groove ball bearing 6308 provider, committed to creating smarter, more convenient, more efficient and safer products and services for customers.
- We are dedicated to producing and delivering Deep Groove Ball Bearings of outstanding quality and exceptional value.
- We strive to promote the rapid development of the company in a new starting point to achieve new breakthroughs, and lay a good foundation for the company to become an excellent manufacturer of providing deep groove ball bearing 6308 with characteristics.
- Our deep knowledge and expertise in the industry enable us to provide the best Deep Groove Ball Bearings and services to our customers.
- We provide a full range of services with our advanced service concept and the most unique business model.
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