Explore our extensive range of miniature ball bearings, including models such as MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. These precision-engineered bearings are designed to meet the highest standards of performance and durability.
| 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 - Your specifications, our customization. We accept orders for bushings in customized sizes to perfectly match your requirements.
- Flange Bearings - Choose from a wide array of flange bearings. We offer a multitude of items to suit various applications.
- Ball Bearings - Experience top-tier quality with our P6 and P5 bearings, featuring superior noise levels of Z2, Z3, and Z4. Enjoy rapid delivery times and exceptional performance.
Ningbo Zhenhai Dongsheng Bearing Factory, established in 2013, is nestled in the heart of Zhenhai District, Ningbo City. Our specialty lies in the research, development, and production of an array of micro bearings, delivering unmatched precision and reliability.
Our company is equipped with state-of-the-art production facilities and advanced bearing manufacturing technology, maintaining a scientific approach to quality that ensures excellence. Our primary product range includes metric and English deep groove ball bearings, stainless steel bearings, flange series bearings, plane thrust ball bearings, precision thin-wall bearings, low-noise bearings, non-standard bearings, and pulley series with inner diameters between 1-15mm and outer diameters below 25mm. Certified by EU environmental standards and ROHS tested, our products reach markets in Hong Kong, Europe, America, South Korea, Japan, and beyond. They are used extensively in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft. Amidst market competition and the evolving internet landscape, we prioritize quality to secure our place in the market. Our production supervisor, boasting over 15 years of industry experience, champions the mantra: 'there is no best, only better.' Our technical team regularly engages in learning exchanges with other units to deliver even greater satisfaction to our customers.
Our company is dedicated to providing high-quality products and exceptional service. We believe that premium products significantly enhance our clients' business success. We warmly welcome friends and partners worldwide to visit, contact us, and explore opportunities for mutual growth and cooperation.
Our cutting-edge equipment, advanced technology, and high-precision testers significantly improve processing accuracy and ensure top-notch product quality. This not only shortens production cycles but also enhances product quality through continuous technological innovation, earning the trust of our customers.
Dongsheng bearings find extensive applications across various sectors, 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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