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 |
- Bushing - Customized sizes available and accepted
- Flange Bearing - Wide variety of items available and accepted
- Ball Bearings - High quality standards of P6, P5 with noise levels Z2, Z3, Z4; swift delivery assured
Ningbo Zhenhai Dongsheng Bearing Factory, established in 2013 in Zhenhai District, Ningbo City, specializes in the research, development, and production of diverse micro bearings.
Our company boasts modern production equipment and advanced bearing manufacturing technology, striving for excellence with a scientific approach. Our main product offerings include 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 inner diameters of 1-15mm and outer diameters of less than 25mm. Certified by EU environmental protection standards with ROHS test reports, our products are exported to Hong Kong, Europe, America, South Korea, Japan, and more. Widely applied in household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and beyond, our products enjoy robust market acceptance. Amidst rapid market development and increasing transparency, we emphasize superior product quality to secure our market position. Our production supervisor, with over 15 years of industry experience, continuously strives for better quality-aligning with our motto, 'there is no best, but better'. Our factory regularly organizes visits to learn from peers, aiming to provide ever-satisfactory answers to our customers.
We prioritize delivering high quality and exceptional service to our clients. Our premium products provide significant business advantages. We warmly welcome friends from around the world to visit and engage with us for cooperative growth and mutual development.
Equipped with top-notch machinery, advanced technology, and high-precision testers, we significantly enhance processing accuracy, ensuring superior product quality while reducing production cycles. Our commitment to technological innovation earns us unwavering customer trust.
Dongsheng bearings are extensively used in 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 prevalent in household appliances and office equipment such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, copiers, and beyond.
){kind=link}