Manufactured from high-quality bearing steel, these bearings deliver excellent mechanical performance within a compact design envelope. The bearing steel material imparts exceptional hardness and wear resistance, ensuring dimensional stability during prolonged, heavy-load operation. Precision grinding processes result in extremely low surface roughness on the inner and outer ring raceways, effectively minimizing frictional losses during operation.
Bearing Features
Featuring a deep-groove ball design, this series can accommodate both radial and bidirectional axial loads. The optimized fit between the internal balls and raceways ensures minimal vibration during high-speed rotation. A high-precision cage design maintains uniform ball distribution at high speeds and prevents rapid temperature rise, thereby extending the service life of the grease.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | |||||||||
| d | D | Df/Df1 | B | Bf | B1 | Bf1 | rsmin | ||||||
| Open | Shield | mm | mm | mm | mm | mm | mm | mm | mm | Cr(kN) | Cor(kN) | Grease | Oil |
| MR104 | ZZ | 4 | 10 | - | 3 | - | 4 | - | 0.2 | 0.588 | 0.206 | 4.7 | 5.3 |
| MR105 | ZZ | 5 | 10 | - | 3 | - | 4 | - | 0.15 | 0.431 | 0.167 | 4.4 | 4.9 |
| MR106 | ZZ | 6 | 10 | - | 2.5 | - | 3 | - | 0.15 | 0.5 | 0.216 | 4.1 | 4.6 |

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