Discover our premium selection of miniature ball bearings, including models such as MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148. Engineered for precision and performance, these bearings are designed to meet the highest standards of quality and reliability.
| 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 Your Specific Needs
- Versatile Flange Bearings----Accommodating a Wide Range of Items
- Exceptional Ball Bearings-----Offering superior quality in P6 and P5 grades, with noise levels from Z2 to Z4. Enjoy swift delivery times to meet your urgent needs.
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. Our commitment to innovation and excellence sets us apart in the industry.
Our company boasts state-of-the-art production equipment and cutting-edge bearing manufacturing technology. Adopting a scientific approach to ensure superior quality, we specialize in 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. These bearings feature an inner diameter of 1-15mm and an outer diameter of less than 25mm. Certified by the EU for environmental protection and holding ROHS test reports, our products are exported globally, including to Hong Kong, Europe, America, South Korea, and Japan. They cater to a wide array of applications, from household appliances and instruments to micro motors and medical devices. As the market evolves, so too does our focus on delivering unmatched product quality. With over 15 years of expertise, our production supervisor ensures continuous improvement and excellence. Our team actively engages in technical exchanges to enhance our capabilities, striving to deliver the best possible solutions to our customers.
At our company, we prioritize high quality and exceptional service. Our top-tier products are designed to significantly boost your business success. We warmly welcome friends and partners from around the globe to visit and collaborate with us for mutual growth and development.
Equipped with excellent machinery, advanced technology, and high-precision testers, we markedly enhance processing accuracy and ensure product quality. This also allows us to shorten production cycles and continuously innovate, further earning the trust of our customers.
Dongsheng bearings are integral to a vast array of applications, including automobiles, motorcycles, water pumps, electric tools, air compressors, reducers, industrial motors, generators, textile machinery, agricultural machinery, transmission equipment, and machine tools.
In addition to industrial uses, Dongsheng bearings are extensively utilized in home appliances and office equipment such as air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, and copiers.
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