Miniature Ball Bearings: MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, 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: Customized sizes available upon request.
- Flange Bearings: Numerous types available for your needs.
- Ball Bearings: Premium quality in P6, P5 grades, with noise levels ranging from Z2 to Z4. Fast delivery guaranteed.
Ningbo Dongsheng Bearing Co., Ltd was formally established in 2013, located in Zhenhai District, Ningbo City. We specialize in the research, development, and production of various micro bearings.
Equipped with state-of-the-art production machinery and advanced bearing manufacturing techniques, our company excels in quality through a scientific approach. Our core products include metric and imperial 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 under 25mm. Certified by the EU for environmental protection and ROHS compliant, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and beyond. They are extensively used in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more. As the market economy evolves and internet transparency grows, competition intensifies. Our factory prioritizes superior quality to secure a market foothold. With over 15 years of experience in the bearing industry, our production supervisor excels in manufacturing processes, always striving for continuous improvement. We regularly send our technical team to learn from other units, ensuring we provide the most satisfactory products to our customers.
Our company is dedicated to delivering high-quality products and exceptional service to our clients, helping them succeed in their business ventures. We warmly welcome friends from around the globe to visit us and explore cooperation opportunities for mutual growth.
With advanced equipment, cutting-edge technology, and high-precision testing tools, we significantly enhance processing accuracy and ensure product quality. Our innovations also shorten production cycles, continuously improving product standards and earning customer trust.
Dongsheng Bearings are extensively utilized in automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, machine tools, and more.
Dongsheng Bearings are also commonly found in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and numerous other devices.
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