Discover the unparalleled precision of our Miniature Ball Bearings MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148-crafted to meet the highest standards of excellence.
| 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-Sizes Customizable to Fit Your Needs
- Flange Bearings-Wide Range of Items Available
- Ball Bearings-Premium Quality P6, P5; Noise Levels Z2, Z3, Z4; Fast Delivery Guaranteed
Ningbo Dongsheng Bearing Co., Ltd., established in 2013 in Zhenhai District, Ningbo City, is dedicated to the research, development, and production of a diverse range of micro bearings.
Equipped with state-of-the-art production machinery and advanced bearing manufacturing technology, Ningbo Zhenhai Dongsheng Bearing Factory is driven by a scientific approach to quality. Our product range includes 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 internal diameters ranging from 1-15mm and external diameters under 25mm. Adhering to EU environmental protection standards, our bearings are ROHS certified and exported worldwide, including to Hong Kong, Europe, America, South Korea, Japan, and beyond. Our products find extensive application in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more. In an era of transparent pricing and intense market competition, we emphasize superior quality to secure our market position. Our production supervisor, with over 15 years of industry experience, embodies our commitment to continuous improvement, underscored by the philosophy: 'There is no best, only better.' Our factory continually engages in knowledge exchange to better serve our customers.
Our company prioritizes high quality and exceptional service, ensuring our premium products support our clients' business success. We warmly welcome friends and partners from around the globe to visit, collaborate, and grow together.
With cutting-edge equipment, advanced technologies, and high-precision testing, we significantly enhance processing accuracy, ensure product quality, and reduce production cycles. Our continuous technological innovations earn the trust of our valued customers.
Dongsheng bearings are extensively used 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 also find widespread use in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and beyond.
){kind=link}