Explore a diverse range of high-precision miniature ball bearings including MR52, MR63, MR83, MR74, MR84, MR104, MR85, MR95, MR105, MR115, MR106, MR126, MR117, MR137, MR128, and MR148, meticulously crafted for various high-performance applications.
| 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 Available
- Versatile Flange Bearings - Numerous Options Available
- Superior Ball Bearings - P6, P5 Quality with Low Noise Levels Z2, Z3, Z4, and Rapid Delivery
Founded in 2013, Ningbo Dongsheng Bearing Co., Ltd. is situated in the Zhenhai District of Ningbo City. Our expertise lies in the research, development, and production of a wide array of micro bearings, providing top-notch solutions for various industries.
At Ningbo Zhenhai Dongsheng Bearing Factory, we pride ourselves on our state-of-the-art production equipment and cutting-edge bearing manufacturing technology. With a commitment to quality, we offer an extensive range of products, including 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 bearings, designed with inner diameters of 1-15mm and outer diameters of less than 25mm, meet EU environmental protection standards and come with ROHS certification. Exported globally to regions such as Hong Kong, Europe, America, South Korea, and Japan, our products are integral to household appliances, instruments, micro motors, medical devices, textile machinery, electric tools, high-end toys, fishing gear, model aircraft, and more. In response to the evolving market economy and increasing transparency in product pricing, we emphasize exceptional quality to maintain a competitive edge. Our production supervisor, with over 15 years of industry experience, ensures adherence to the highest standards, embodying the philosophy 'there is no best, but better'. Continuous learning and technological advancements are at the core of our operations, enabling us to provide our customers with superior solutions.
Our unwavering dedication to superior quality and unparalleled service ensures that our clients receive the best products to drive their business success. We warmly welcome partners from around the globe to visit and engage with us, fostering mutual growth and collaboration.
Equipped with cutting-edge machinery and advanced technology, we achieve exceptional processing precision, ensuring top-tier product quality while optimizing production cycles. Our relentless pursuit of innovation further enhances product quality, earning the steadfast trust of our customers.
Ningbo Zhenhai Dongsheng Bearing Factory is recognized for its extensive application in a myriad of sectors, including automotive, motorcycle, water pump, electric tool, air compressor, reducer, industrial motor, generator, textile machinery, agricultural machinery, transmission equipment, and machine tools.
Our bearings are also indispensable in home appliances and office equipment, including air conditioners, washing machines, vacuum cleaners, massagers, sewing machines, range hoods, microwave ovens, and copiers.
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