Explore our extensive range of miniature ball bearings including MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Each designed to meet the highest standards of precision and durability.
| 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 |
- Customizable Bushing Sizes-Tailored to meet your specific requirements.
- Flange Bearings-Our extensive range accommodates a wide variety of items, ensuring you find the perfect fit.
- Ball Bearings-Experience superior quality with our P6, P5 options. Available in noise levels Z2, Z3, Z4, and offering rapid delivery.
Founded in 2013, Ningbo Dongsheng Bearing Co., Ltd. is situated in the Zhenhai District of Ningbo City. We specialize in the research, development, and production of various micro bearings, boasting modern production equipment and cutting-edge technology.
Our company prides itself on utilizing advanced bearing manufacturing technology and maintaining a scientific approach to quality. We specialize in metric and English 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. Our products, with inner diameters ranging from 1-15mm and outer diameters under 25mm, comply with EU environmental protection standards and hold ROHS test reports. Exported globally to regions including Hong Kong, Europe, America, South Korea, Japan, and more, our bearings are integral to household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, and model aircraft. Amidst fierce market competition, we prioritize quality to secure our market position. Our production supervisor, with over 15 years of experience, leads continuous improvement efforts, ensuring our products are always advancing. We consistently collaborate with industry experts to enhance our offerings and deliver customer satisfaction.
At Ningbo Dongsheng Bearing Factory, we prioritize exceptional quality and outstanding service. Our superior products are designed to support and advance our clients' business endeavors. We warmly welcome global partners to visit and engage with us for mutual growth and success.
Our state-of-the-art equipment, advanced technology, and high-precision testing apparatus significantly enhance processing accuracy, ensure superior product quality, and reduce production cycles. Through continuous technological innovation, we strive to meet and exceed customer expectations, building enduring trust.
Dongsheng bearings are extensively applied in various industries including automotive, motorcycle, water pump, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Our bearings are also crucial components in household appliances and office equipment, such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, and copiers.
){kind=link}