Our exceptional range of miniature ball bearings includes the models MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Each bearing is meticulously crafted to deliver unparalleled performance and reliability.
| 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 are available and tailored to meet your specific requirements.
- Flange Bearings-offering a diverse range of items to suit various applications.
- Ball Bearings-manufactured to P6 and P5 quality standards, with noise levels Z2, Z3, and Z4. Enjoy swift delivery times for maximum convenience.
Established in 2013, Ningbo Dongsheng Bearing Co., Ltd, located in the thriving Zhenhai District of Ningbo City, is dedicated to the innovation, development, and production of micro bearings.
Our company boasts state-of-the-art production equipment and cutting-edge bearing manufacturing technology, ensuring top-notch quality through a scientific approach. We specialize in 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 standards and backed by ROHS test reports, our products are exported to regions including 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, and model aircraft, our bearings stand out in a competitive market. Our production supervisor, with over 15 years in the bearing industry, ensures our products meet the highest quality standards through continuous learning and innovation, striving always for improvement.
At Ningbo Dongsheng Bearing, we prioritize high quality and exceptional service. Our premium products are designed to enhance your business. We warmly welcome friends from around the world to visit us and explore collaborative opportunities for mutual growth.
Equipped with state-of-the-art machinery, advanced technology, and high-precision testing instruments, we significantly enhance processing accuracy, ensure impeccable product quality, and reduce production cycles. Through continuous technological innovation, we earn and maintain 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.
Our bearings also find applications in household 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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