Whether you are building precision machinery, designing compact motors, or enhancing industrial automation systems, the MR series deep groove ball bearings offer the reliability, durability, and efficiency you need. Explore our full range to find the perfect bearing for your application.
The MR series deep groove ball bearings are designed to deliver exceptional performance in a wide range of industrial and mechanical applications. Known for their precision engineering, long service life, and versatility, these miniature bearings are ideal for industries such as robotics, automotive, electronics, and precision machinery.
| Deep Groove Ball Bearing Dimension Table | ||||||||||||
| Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 | Column 7 | Column 8 | Column 9 | Column 10 | Column 11 | Column 12 | Column 13 |
| Model | Inner Diameter | Outer Diameter | Width | Central Diameter | Sphere Diameter | Number of Balls | Outer Trench | Outer Inner Diameter | Groove Curvature | Inner Trench | inner and Outer Diameter | Groove Curvature |
| MR52 | 2 | 5 | 2/2.5 | 3.45 | 0.8 | 7 | 4.25 | 4.05 | 0.41 | 2.65 | 2.85 | 0.41 |
| MR62 | 2 | 6 | 2.5 | 4.35 | 0.8 | 8 | 5.15 | 4.95 | 0.412 | 3.55 | 3.75 | 0.412 |
| MR63 | 3 | 6 | 2/2.5 | 4.35 | 0.8 | 8 | 5.15 | 4.95 | 0.412 | 3.55 | 3.75 | 0.412 |
| MR72 | 2 | 7 | 2.5/3 | 4.35 | 0.8 | 8 | 5.15 | 4.95 | 0.412 | 3.55 | 3.75 | 0.412 |
| MR72X | 2.5 | 5 | 1.5/2.3 | |||||||||
| MR74 | 4 | 7 | 2/2.5 | 5.5 | 0.8 | 6.3 | 6.1 | 0.412 | 4.7 | 4.9 | 0.412 | |
| MR82X | 2.5 | 8 | 2.5/3 | 5 | 1.2 | 7 | 6.2 | 5.9 | 0.618 | 3.8 | 4.1 | 0.618 |
| MR83 | 3 | 8 | 2.5/3 | 5 | 1.2 | 7 | 6.2 | 5.9 | 0.618 | 3.8 | 4.1 | 0.618 |
| MR84 | 4 | 8 | 2/3 | 6 | 1.2 | 7 | 7.2 | 6.9 | 0.618 | 4.8 | 5.1 | 0.618 |
| MR85 | 5 | 8 | 2/2.5 | 6.4 | 0.8 | 9 | 7.2 | 7 | 0.412 | 5.6 | 5.8 | 0.412 |
| MR93 | 3 | 9 | 2.5/4 | 6 | 1.2 | 7 | 7.2 | 6.9 | 0.618 | 4.8 | 5.1 | 0.618 |
| MR95 | 5 | 9 | 2.5/3 | 7 | 1.2 | 10 | 8.2 | 7.9 | 0.62 | 5.8 | 6.1 | 0.62 |
| MR104 | 4 | 10 | 3/4 | 7 | 1.2 | 10 | 8.2 | 7.9 | 0.62 | 5.8 | 6.1 | 0.62 |
| MR105 | 5 | 10 | 3/4 | 7.5 | 1.2 | 8 | 8.7 | 8.4 | 0.618 | 6.3 | 6.6 | 0.62 |
| MR106 | 6 | 10 | 2.5/3 | 8 | 1.2 | 10 | 9.2 | 8.9 | 0.618 | 6.8 | 7.1 | 0.618 |
| MR115 | 5 | 11 | 4 | 8 | 1.588 | 8 | 9.59 | 9.3 | 0.83 | 6.41 | 6.7 | 0.82 |
| MR116 | 6 | 11 | 4 | 8.5 | 1.588 | 9 | 10.08 | 9.68 | 0.83 | 6.9 | 7.29 | 0.82 |
| MR117 | 7 | 11 | 2.5/3 | 9 | 1.2 | 10 | 10.2 | 9.9 | 0.62 | 7.8 | 8.1 | 0.62 |
| MR118 | ||||||||||||
| MR119 | ||||||||||||
| MR126 | 6 | 12 | 3/4 | 9 | 1.588 | 8 | 10.588 | 10.19 | 0.82 | 7.412 | 7.8 | 0.82 |
| MR127 | ||||||||||||
| MR128 | 8 | 12 | 2.5/3.5 | 10 | 1.2 | 12 | 11.2 | 10.9 | 0.62 | 8.8 | 9.1 | 0.62 |
| MR137 | 7 | 13 | 3/4 | 10 | 1.2 | 12 | 11.2 | 10.9 | 0.62 | 8.8 | 9.1 | 0.62 |
| MR148 | 8 | 14 | 3.5/4 | 11 | 1.588 | 9 | 12.588 | 12.19 | 0.82 | 9.412 | 9.8 | 0.82 |
| MR149 | 9 | 14 | 3/4.5 | 11.5 | 1.588 | 12 | 13.088 | 12.7 | 0.82 | 9.912 | 10.3 | 0.82 |
| 188 | 6.35 | 12.7 | 4.7625 | 9.5 | 2 | 8 | 11.508 | 11.1 | 1.05 | 7.5 | 7.9 | 1.05 |
| Deep Groove Ball | ||||||||||||
| 6700 | 10 | 15 | 4 | 12.5 | 1.588 | 12 | 14.18 | 13.8 | 0.81 | 11.01 | 11.34 | 0.81 |
| 6701 | 12 | 18 | 4 | 15 | 1.588 | 14 | 16.588 | 16.18 | 0.81 | 13.41 | 13.81 | 0.81 |
| 6702 | 15 | 21 | 4 | 18 | 1.588 | 16 | 19.588 | 19.18 | 0.18 | 16.412 | 16.81 | 0.81 |
| 6703 | 17 | 23 | 4 | 20 | 1.588 | 18 | 21.588 | 21.18 | 0.81 | 18.41 | 18.81 | 0.81 |
| 6704 | 20 | 27 | 4 | 23.5 | 1.588 | 20 | 25.08 | 24.68 | 0.81 | 21.9 | 22.3 | 0.81 |
| 6705 | 25 | 32 | 4 | 28.5 | 1.588 | 22 | 30.08 | 29.68 | 0.81 | 26.9 | 27.3 | 0.81 |
| 6706 | 30 | 37 | 4 | 33.5 | 1.588 | 24 | 35.08 | 34.68 | 0.81 | 31.91 | 32.3 | 0.81 |
| 6707 | 35 | 44 | 5 | 39.5 | 2.381 | 27 | 41.881 | 41.28 | 1.22 | 37.119 | 37.71 | 1.22 |
| 6708 | 40 | 50 | 6 | 45 | 3.175 | 29 | 48.175 | 47.38 | 1.63 | 41.825 | 42.6 | 1.63 |
| 6709 | 45 | 55 | 6 | 50 | 3.175 | 31 | 53.175 | 52.38 | 1.63 | 46.825 | 47.61 | 1.63 |
| 6710 | 50 | 62 | 6 | 56 | 3.175 | 33 | 59.175 | 58.38 | 1.63 | 52.825 | 53.62 | 1.63 |
| 6711 | 55 | 68 | 7 | |||||||||
High Precision and Low Friction
Each MR Series bearing is manufactured to strict tolerances, ensuring smooth rotation and minimal friction. This high-precision design reduces energy loss and heat generation, improving efficiency and extending the life of the machinery.
Compact and Lightweight Design
The MR Series bearings are miniature in size yet robust in performance. Their compact design makes them perfect for applications where space is limited, such as small motors, drones, and medical devices.
Durable Construction
Made from premium chrome steel or stainless steel options, MR Series bearings offer excellent wear resistance and durability under continuous operation. This ensures reliable performance even in high-speed or high-load conditions.
Versatile Applications
MR Series deep groove ball bearings are suitable for radial and axial loads, making them highly versatile. They can be used in applications ranging from industrial automation and home appliances to model engineering and precision instruments.
Smooth and Quiet Operation
Advanced design and precise manufacturing result in low vibration and noise during operation, an essential feature for equipment requiring quiet and stable performance.
Reliability: Consistent performance even under continuous load.
Longevity: High wear and corrosion resistance ensure a long service life.
Efficiency: Smooth rotation reduces energy consumption and maintenance needs.
Flexibility: Wide range of sizes and materials to match specific application requirements.
Miniature electric motors
Precision instruments and sensors
Robotics and automation systems
Home appliances and office equipment
Medical devices and laboratory equipment
