Our diverse range of miniature ball bearings include models such as MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148, 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 |
- Customized Bushing Sizes---Tailored to meet your specific requirements with precision.
- Flange Bearings---A broad range of items available to suit diverse needs.
- Ball Bearings---Premium quality P6, P5, with noise levels Z2, Z3, Z4. Rapid delivery guaranteed.
Ningbo Dongsheng Bearing Co., Ltd., formally established in 2013 and located in Zhenhai District, Ningbo City, specializes in the research, development, and production of various micro bearings.
Our company is equipped with modern production facilities and advanced bearing manufacturing technology, adhering to a scientific quality approach for excellence. 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 under 25mm. Certified by EU environmental protection standards, our products meet ROHS requirements and are exported globally, including to Hong Kong, Europe, America, South Korea, and Japan. Widely applied in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more. In a competitive market, we prioritize product quality to carve our niche. Our production supervisor, boasting over 15 years of experience, ensures our commitment to continuous improvement. We actively engage with industry leaders to enhance our technical expertise, aiming to exceed customer expectations.
We are dedicated to high quality and exceptional service, providing our clients with significant business advantages. We welcome friends from around the globe to visit and collaborate with us for mutual growth and success.
Equipped with cutting-edge technology and high-precision testing equipment, we ensure superior product quality, shortened production cycles, and continuous innovation through technological advancements, earning the trust of our customers.
Dongsheng bearings are extensively utilized in automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Our bearings also find widespread use in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and more.
){kind=link}