Discover our exceptional range of miniature ball bearings including models MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Expertly designed for precision 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-tailored to your exact specifications. Customized sizes available to meet your unique needs.
- Flange Bearing-offering a wide variety to suit diverse applications and requirements.
- Ball Bearing-experience top-tier quality with our P6, P5 grades, featuring noise levels Z2, Z3, Z4, and fast delivery times.
Ningbo Dongsheng Bearing Co., Ltd, established in 2013, is located in Zhenhai District, Ningbo City. We specialize in the innovation, development, and production of a diverse array of microbearings.
Our company boasts cutting-edge production equipment and advanced bearing manufacturing technology, adhering to a scientific approach to achieve unparalleled quality. Our primary products include 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 the EU for environmental protection and equipped with ROHS test reports, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and beyond. They are widely utilized in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, premium toys, fishing gear, model aircraft, and more. In response to the rapidly evolving market economy and increasing competition, we emphasize superior product quality to secure our market position. With over 15 years of industry expertise, our production supervisor possesses deep knowledge in the bearing production process and a commitment to perpetual improvement: 'There is no best, but better.' We continually encourage our technical team to learn and innovate, aiming to provide even greater satisfaction to our customers.
We prioritize delivering high-quality products and exceptional service to our clients, ensuring that our superior bearings significantly aid their business endeavors. We warmly welcome friends from around the world to visit and contact us for collaborative growth and mutual development.
Equipped with top-notch machinery, cutting-edge technology, and high-precision testers, we significantly enhance processing accuracy and ensure product quality while reducing production cycles. Through relentless technological innovation, we continuously improve our product standards, garnering unwavering trust from our clientele.
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 wide applications in household appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and more.
){kind=link}