Discover our comprehensive range of miniature ball bearings including MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Crafted with precision and quality in mind.
| 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 - Custom sizes available to meet your specific needs.
- Flange Bearings - A wide array of items available for diverse applications.
- Ball Bearings - Premium quality in P6, P5, noise levels Z2, Z3, Z4, and fast delivery times.
Established in 2013, Ningbo Dongsheng Bearing Co., Ltd. is situated in the Zhenhai District, Ningbo City. We specialize in the research, development, and production of a variety of micro bearings, ensuring top-notch quality and innovative solutions for all your bearing needs.
Our company boasts modern production equipment and advanced bearing manufacturing technology. With a commitment to excellence and a scientific approach to quality, we produce 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 ROHS standards, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and more. Widely used in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft, our bearings stand out in a competitive market. Our production supervisor, with over 15 years of experience, believes in continuous improvement and quality excellence. Regular technical exchanges ensure we stay at the forefront of the industry, providing superior customer satisfaction.
At Ningbo Zhenhai Dongsheng Bearing Factory, we prioritize high quality and exceptional service. Our commitment to excellence helps our clients excel in their business endeavors. We warmly welcome friends from around the world to visit and explore cooperative opportunities for mutual growth.
Equipped with state-of-the-art machinery, advanced technology, and high-precision testers, we significantly enhance processing accuracy, ensure product quality, and reduce production cycles. Through continuous technological innovation, we consistently improve our product offerings, earning the trust of our customers.
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.
Our 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 beyond.
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