Explore our extensive range of miniature ball bearings including models MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Each bearing is meticulously designed for optimal performance and longevity.
| 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 - We accept customized sizes to meet your specific needs and requirements.
- Flange Bearing - A wide variety of items are available to suit diverse applications.
- Ball Bearings - Featuring high-quality P6 and P5 ratings with noise levels Z2, Z3, and Z4. We ensure quick delivery for all your urgent needs.
Established in 2013, Ningbo Zhenhai Dongsheng Bearing Factory is located in Zhenhai District, Ningbo City. We specialize in the R&D and production of various micro bearings. Our expertise spans 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 under 25mm.
Our company is equipped with modern production facilities and advanced bearing manufacturing technology. We strive for excellence with a scientific approach to quality. Our products are EU environmental protection certified and have ROHS test reports. They are exported worldwide, including to Hong Kong, Europe, America, South Korea, and Japan. They are widely used in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft.
We are committed to providing high-quality products and exceptional service. Welcoming friends from around the world, we aim to facilitate successful business collaborations and mutual development.
Our state-of-the-art equipment, cutting-edge technology, and high-precision testers significantly improve processing accuracy, ensuring exceptional product quality. Technological innovation allows us to continually enhance quality, earn customer trust, and shorten production cycles.
Dongsheng bearings are widely utilized in various industries, including automotive, motorcycle, water pump, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Our bearings are also extensively used in household appliances and office equipment, such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, and copiers.
){kind=link}