Miniature Ball Bearings: MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, 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 |
- Bushings - Custom Sizes Available
- Flange Bearings - Wide Range of Items Available
- Ball Bearings - Superior Quality P6, P5, Noise Levels Z2, Z3, Z4, Rapid Delivery
Ningbo Dongsheng Bearing Co., Ltd was established in 2013, strategically located in the Zhenhai District of Ningbo City. We specialize in the research, development, and production of a variety of micro bearings.
Equipped with state-of-the-art production machinery and cutting-edge bearing manufacturing technology, our company upholds a scientific approach to quality, striving for excellence. Our product range includes both metric and imperial deep groove ball bearings, stainless steel bearings, flange series bearings, plane thrust ball bearings, precision thin-wall bearings, low-noise bearings, non-standard bearings, and pulley series with inner diameters of 1-15mm and outer diameters of less than 25mm. Our products are compliant with EU environmental protection standards and come with ROHS certifications. They are exported to markets in Hong Kong, Europe, America, South Korea, Japan, and beyond. Widely used in household appliances, instruments, micro motors, medical devices, textile machinery, power tools, high-end toys, fishing gear, model aircraft, and more, our products meet diverse industry needs. In a rapidly evolving market economy marked by increased transparency and intense competition, our factory remains committed to exceptional product quality. Our production supervisor, with over 15 years of experience in the bearing industry, brings extensive expertise to ensure continuous improvement. Our technical teams regularly engage in exchange visits to stay ahead in bearing technology, ensuring customer satisfaction.
Our company prioritizes high quality and exceptional service, providing our clients with products that support their business growth. We warmly welcome friends from around the globe to visit and collaborate with us for mutual development and success.
Our advanced equipment, cutting-edge technology, and high-precision testing capabilities significantly enhance our processing accuracy, ensuring top-notch product quality while reducing production cycles. Continuous technological innovation helps us improve product quality, earning the trust of our customers.
Dongsheng Bearings are extensively utilized in automobiles, motorcycles, water pumps, power tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, machine tools, and more.
Dongsheng Bearings also find wide application in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and more.
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