Discover our extensive range of high-performance miniature ball bearings, including the models MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148.
| Bearing number |
Bearing size |
Cr(N) |
Cor(N) |
rpm(grease ZZ) |
rpm(oil OPEN) |
weight(g) |
| MR52ZZ |
2x5x2.5 |
187 |
58 |
85000 |
100000 |
0.16 |
| MR63ZZ |
3x6x2.5 |
208 |
74 |
71000 |
80000 |
0.20 |
| MR83ZZ |
3x8x3 |
560 |
179 |
60000 |
67000 |
0.54 |
| MR74ZZ |
4x7x2.5 |
310 |
115 |
60000 |
67000 |
0.22 |
| MR84ZZ |
4x8x3 |
395 |
139 |
56000 |
67000 |
0.36 |
| MR104ZZ |
4x10x4 |
710 |
270 |
50000 |
60000 |
1.04 |
| MR85ZZ |
5x8x2.5 |
310 |
120 |
53000 |
63000 |
0.26 |
| MR95ZZ |
5x9x3 |
430 |
168 |
50000 |
60000 |
0.50 |
| MR105ZZ |
5x10x4 |
430 |
168 |
50000 |
60000 |
0.95 |
| MR115ZZ |
5x11x4 |
715 |
276 |
50000 |
56000 |
1.49 |
| MR106ZZ |
6x10x3 |
495 |
218 |
45000 |
53000 |
0.56 |
| MR126ZZ |
6x12x4 |
715 |
292 |
43000 |
50000 |
1.27 |
| MR117ZZ |
7x11x3 |
455 |
201 |
43000 |
50000 |
0.62 |
| MR137ZZ |
7x13x4 |
540 |
276 |
40000 |
48000 |
1.58 |
| MR128ZZ |
8x12x3.5 |
545 |
274 |
40000 |
48000 |
0.71 |
| MR148ZZ |
8x14x4 |
820 |
385 |
38000 |
45000 |
1.86 |
| MR84ZZ(H4) |
8x4x2 |
395 |
139 |
56000 |
67000 |
0.36 |
- Bushing---Custom sizes available to meet your specific needs.
- Flange Bearing----Wide variety of items available for your selection.
- Ball Bearing-----Top-tier quality with P6, P5 standards, noise levels Z2, Z3, Z4, and swift delivery times.
Established in 2013, Ningbo Dongsheng Bearing Co., Ltd., located in Zhenhai District, Ningbo City, excels in the research, development, and production of various micro bearings.
Our company boasts state-of-the-art production equipment and cutting-edge bearing manufacturing technology, striving for excellence with a scientific approach. Our main products include both metric and English deep groove ball bearings, stainless steel bearings, flange series bearings, plane thrust ball bearings, precision thin-wall, low-noise bearings, non-standard bearings, and pulley series with inner diameters of 1-15mm and outer diameters of less than 25mm. Certified by EU environmental protection standards and equipped with ROHS test reports, our products are exported worldwide, including to Hong Kong, Europe, America, South Korea, and Japan. Widely used in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more, our products maintain high quality amidst growing market competition. With over 15 years of experience, our production supervisor ensures no compromise on quality. Our factory regularly organizes technical exchanges to continuously improve customer satisfaction.
Our company is committed to delivering high quality and exceptional service. By providing superior products, we support our clients' business success. We warmly welcome friends from around the globe to visit and engage in cooperative development with us.
Equipped with advanced technology and high-precision testing instruments, we significantly enhance processing accuracy, ensure product quality, and reduce production cycles. Through continuous technological innovation, we earn our customers' trust by consistently improving product quality.
Dongsheng bearings find extensive application in various industries, including automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Dongsheng bearings are also integral to home appliances and office equipment, such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and more.
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