Explore our extensive range of miniature ball bearings including MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Each model is crafted with precision to meet your specific needs.
| 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 available to match your exact specifications.
- Flange bearings-numerous items in stock and ready for your applications.
- Ball bearings-premium quality P6, P5, with noise levels Z2, Z3, Z4, ensuring quick delivery times.
Established in 2013, Ningbo Dongsheng Bearing Co., Ltd is situated in the Zhenhai District of Ningbo City. We specialize in the research, development, and production of a variety of micro bearings, combining innovation and expertise.
Our company boasts modern production facilities and state-of-the-art bearing manufacturing technology, striving for excellence with a scientific approach to quality. We offer a wide range of products including 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 an inner diameter of 1-15mm and an outer diameter of less than 25mm. Our products are environmentally certified by the EU and come with ROHS test reports. They are exported globally to regions such as Hong Kong, Europe, America, South Korea, Japan, and beyond. Widely used in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft, our bearings meet diverse needs. As the market economy evolves and transparency grows, competition intensifies. Our factory prioritizes quality to secure a market position. With over 15 years of expertise, our production supervisor ensures our processes are continually refined. Regular visits and learning exchanges with other units ensure we deliver the utmost satisfaction to our customers.
Our company emphasizes delivering high-quality products and exceptional service to our clients. Our top-tier products support our clients' business growth. We welcome friends from around the globe to visit, contact us, and explore opportunities for cooperation and mutual development.
Equipped with leading-edge technology and high-precision testing equipment, Ningbo Dongsheng Bearing Factory significantly enhances processing accuracy, assures product quality, and reduces production cycles. Through continuous technological innovation, we consistently improve product quality, earning our customers' trust.
Dongsheng bearings find extensive applications in automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, machine tools, and more.
Dongsheng bearings are also commonly utilized in household and office appliances such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and additional equipment.
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