Discover the precision of our miniature ball bearing series, including MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148.
| 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 available to meet your specific requirements.
- Flange bearing----a wide range of items available to suit various applications.
- Ball bearing----offering high quality with P6, P5 precision, and noise levels Z2, Z3, Z4. Enjoy quick delivery and reliable performance.
Ningbo Dongsheng Bearing Co., Ltd, founded in 2013 and located in Zhenhai District, Ningbo City, specializes in the research, development, and production of various micro bearings.
Our company boasts modern production facilities and advanced bearing manufacturing technologies, striving for excellence with a scientific approach to quality. Our offerings include both metric and English deep groove ball bearings, stainless steel bearings, flange series, 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. Certified by EU environmental standards and ROHS, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and beyond. Widely utilized in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more. In an increasingly transparent and competitive market, our factory prioritizes high-quality products to secure our market position. Our production supervisor, with over 15 years of experience in the bearing industry, ensures excellence in the bearing production process. Our factory continually organizes technical exchanges to enhance our capabilities and customer satisfaction.
We are committed to providing high-quality products and unparalleled service to our clients. We believe that superior quality will bolster our clients' business success. We welcome friends from around the world to visit and collaborate with us for mutual growth and development.
Our state-of-the-art equipment, cutting-edge technology, and high-precision testing tools significantly enhance processing accuracy and product quality while shortening production cycles. Through continual technological innovation, we consistently improve product quality, earning our customers' trust.
Dongsheng bearings are trusted across diverse applications, including automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Dongsheng bearings are also extensively utilized in home appliances and office equipment, such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and more.
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