Discover the unparalleled range of our miniature ball bearings: MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, MR148. Each is crafted with precision for superior performance.
| 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 are welcome, tailored to meet your exact requirements.
- Flange bearings-available in a wide range of items to suit diverse applications.
- Ball bearing-offering high quality in P6, P5 grades, with noise levels Z2, Z3, Z4, and quick delivery guaranteed.
Founded in 2013 and situated in Zhenhai District, Ningbo City, Ningbo Dongsheng Bearing Co., Ltd specializes in the R&D and production of diverse micro bearings. Our expertise lies in creating high-precision bearings with exceptional performance.
Our state-of-the-art production facilities and advanced bearing manufacturing techniques ensure top-tier quality. We specialize in metric and English deep groove ball bearings, stainless steel bearings, flange series, plane thrust ball bearings, precision thin-wall bearings, low-noise, non-standard bearings, and pulley series with inner diameters of 1-15mm and outer diameters of less than 25mm. Certified by EU environmental protection standards and ROHS, our products are globally exported to regions including Hong Kong, Europe, America, South Korea, and Japan. Widely utilized in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft, our products stand out in a competitive market through their superior quality. Our factory's production supervisor, with over 15 years of industry experience, emphasizes continuous improvement in our manufacturing processes, ensuring that we consistently meet high standards. We actively engage in technical exchanges to provide ever-improving satisfaction to our customers.
Dedicated to delivering high quality and exceptional service, we aim to support our clients' business growth. We warmly welcome friends from around the globe to visit and collaborate with us for mutual development.
Equipped with advanced machinery and high-precision testing tools, we significantly enhance processing accuracy and ensure product quality. Our technological innovations not only improve quality but also shorten production cycles, earning us our customers' trust.
Dongsheng bearings find comprehensive applications in automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Our bearings are also integral to home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, and copiers.
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