Discover our comprehensive range of high-performance miniature ball bearings: MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Each type is meticulously crafted to meet stringent quality standards.
| 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---Customization to your exact size specifications available
- Flange Bearings----Wide variety of items readily available
- Ball Bearing----Superior quality in P6, P5 grades, with noise levels Z2, Z3, Z4, ensuring prompt delivery
Founded in 2013, Ningbo Dongsheng Bearing Co., Ltd., located in the Zhenhai District of Ningbo City, specializes in the innovation, development, and production of diverse micro bearings.
Our state-of-the-art production facility and advanced bearing manufacturing technologies are driven by a scientific approach to quality, aiming for unparalleled excellence. Our main product lines 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 from 1-15mm and outer diameters under 25mm. Certified by the EU for environmental protection and holding ROHS test reports, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and more. Widely applied in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and beyond. As the market economy rapidly evolves and internet transparency grows, our factory emphasizes superior product quality to secure a competitive edge. With over 15 years of expertise in the bearing industry, our Production Supervisor is committed to the mantra: 'There's always room for improvement.' We continuously seek technical knowledge from industry leaders to better serve our customers.
We prioritize delivering high-quality products and exceptional service to our clients. Our superior products are designed to significantly boost our clients' businesses. We warmly invite friends from around the globe to visit and explore potential cooperation and mutual development with us.
Equipped with cutting-edge machinery and high-precision testing tools, we significantly enhance processing accuracy, ensuring top-notch product quality and reducing production cycles. Through continuous technological innovation, we consistently elevate 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.
Our bearings are also extensively used in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and beyond.
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