Basic Parameters
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'B8' is the series code of this bearing, representing that it belongs to a specific design series. This series of bearings has been carefully developed and has unique structural characteristics, which can well meet the diverse needs of various equipment.
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'74' is mainly related to the bearing size. According to a specific size coding rule, it reflects key size information such as the inner diameter, outer diameter and width of the bearing, ensuring a perfect fit for your equipment during installation and use.
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'D' is a suffix code indicating that this bearing has special design characteristics. This characteristic may involve multiple aspects, such as a special sealing structure, lubrication method, or optimized design for special environments, making it different in performance from ordinary bearings.
Introduction to performance characteristics
Excellent load-carrying capacity
- The bearing B8 - 74D has excellent load-carrying capacity. Whether it is radial load or axial load, it can effectively cope. This is due to its carefully designed internal structure. The contact method between the rolling elements and the inner and outer rings has been optimized, so that the load can be evenly distributed on various components, thus ensuring the stable operation of the bearing under high load conditions. For example, in the transmission system of heavy machinery, it can stably support rotating parts to ensure the effective transmission of power without deformation or damage due to excessive load.
Accuracy and stability
- We adopt high-precision manufacturing processes in the production process to ensure that the B8 - 74D bearing reaches a high precision standard. Its dimensional accuracy and rotational accuracy are at an excellent level in the industry, which enables it to maintain good concentricity and stability when running in equipment. Equipment installed with this bearing will show a low level of vibration and noise during operation. For example, in precision machine tools, it can ensure precise machining between the tool and the workpiece and effectively improve machining accuracy and product quality.
Adaptable operating speed
- This bearing takes into account different operating speed requirements in the design. It can maintain good performance within a wide speed range and can operate stably under both low-speed heavy-load and high-speed light-load working conditions. This is due to the optimization of its internal structure and the reasonable design of the lubrication system, which reduces friction and heat generation during high-speed operation and also avoids the crawling phenomenon that may occur during low-speed operation.
Durability and reliability
- The B8 - 74D bearing uses high-quality materials. The inner and outer rings usually use high-quality bearing steel. This material has high hardness, high strength and good wear resistance and can resist wear caused by long-term operation. At the same time, according to the special design represented by the "D" suffix (such as a special sealing or lubrication method), the durability of the bearing is further enhanced. In various complex working environments, it can maintain reliable performance, reduce the frequency of maintenance and replacement, and save equipment maintenance costs and downtime for you.
Product Application
Industrial manufacturing field
- In various machine tool equipment such as lathes, milling machines, drilling machines, etc., the B8 - 74D bearing can be used for spindle support to ensure the precise cutting movement of cutting tools and improve processing accuracy. At the same time, in the joint parts of industrial robots, it can also provide stable rotational support to ensure the accuracy and smoothness of robot movements.
Transportation field
- In the hub bearing unit or transmission of automobiles, this bearing can adapt to various complex loads and speed changes during vehicle driving with its good load-bearing capacity and stability. In the motor and transmission system of railway locomotives, it can also play an important role in ensuring the safe and stable operation of trains.
Energy and power field
- In equipment such as generators and wind turbine generators, the B8 - 74D bearing can be used to support the rotating rotor part. It can withstand the huge centrifugal force and axial thrust generated by high-speed rotation and maintain good stability at the same time to ensure the efficient power generation of energy equipment.
Product List
| Bearing No. |
Inner Dia. |
Outer Dia. |
High |
| B8-23D |
8 |
23 |
14 |
| B8-74D |
8 |
22 |
11 |
| B8-79D |
8 |
23 |
11 |
| B8-85D |
8 |
23 |
14 |
| B10-46D |
10 |
23 |
11 |
| B10-50D |
10 |
27 |
11 |
| B10-27D |
10 |
27 |
14 |
| B9000DRR |
10 |
27 |
14 |
| B12-32D |
12 |
32 |
10 |
| B12-32DW |
12 |
32 |
13 |
| B15-86D |
15 |
47 |
14 |
| B15-83D |
15 |
47 |
18 |
| B17-52D |
15 |
52 |
24 |
| B15-69 |
15 |
35 |
13 |
| B17-107D |
17 |
47 |
19 |
| B17-116D |
17 |
52 |
18 |
| B17-47D |
17 |
47 |
24 |
| B17-99D |
17 |
52 |
17 |
| B304 2DRR |
17 |
52 |
16 |
| 6904 DW |
18.8 |
37 |
9 |
| 6906 DW |
30 |
47 |
9 |
| 6904 WB |
20 |
37 |
8.5 |
| W6000-2RS |
10 |
26 |
10 |
| W6001-2RS |
12 |
28 |
12 |
| W6201-ZRS |
12 |
32 |
16 |
| W6203-2RS |
17 |
40 |
17.5 |
| W6205-2RS |
25 |
52 |
20.6 |
| W6305-2RS |
25 |
62 |
25.4 |
| W6306-2RS |
30 |
72 |
30.2 |
| 62201-2RS |
12 |
32 |
16 |
| 62303-2RS |
17 |
47 |
19 |
| 62304-2RS/17 |
17 |
52 |
21 |
| 6403-2RS |
17 |
62 |
17 |
| 3306-2RS |
30 |
72 |
30.2 |
| W6200RR |
10 |
30 |
14.3 |
| W6200RR |
15 |
32 |
11 |
| 6201-RR |
12 |
32 |
10 |
| 87502 RR |
15 |
35 |
12.7 |
| 87503 RR |
17 |
40 |
14.3 |
| 87605 RR |
25 |
62 |
21 |
| 6201-RRU |
12 |
35 |
18 |
| 6202 SRR |
15 |
35 |
13 |
| 949100-2140 |
12 |
35 |
18 |
| 949100-3190 |
15 |
43 |
13 |
| 949100-3360 |
15 |
46 |
14 |
| 949100-3480 |
15 |
38 |
19 |
| 949100-3820 |
15 |
52 |
16 |
| 949100-2790 |
15 |
35 |
13 |
| 949100-3660 |
15 |
32 |
11 |
| 949100-3330 |
17 |
52 |
24(26) |
| 3051 |
25 |
62 |
19 |
| 62322 |
22 |
56 |
21 |
| 7109Z |
15 |
35 |
9 |
| Wc87503 ZZ |
17 |
40 |
14.3 |
| REF 382 |
17 |
47 |
24 |
