The F63 series represents a high-load variant within the category of miniature bearings. Engineered to withstand harsh operating conditions and heavy loads, this series features increased outer diameters and wall thicknesses. The thickened inner and outer ring structure provides exceptional resistance to deformation. The bearing maintains structural integrity even under combined loads involving significant radial forces and partial axial forces, thereby greatly reducing the risk of failure due to overloading; this makes it an ideal choice for industrial-grade sensors, fan motors, and pumps.
Bearing Features
Its flanged design not only facilitates precise positioning but also enhances the bearing's resistance to tilting within the housing bore. This structural reinforcement is particularly crucial for drive components subject to varying axial forces, ensuring the stability of the axis of rotation in complex loading environments. Leveraging the high tempering stability of SUS440 stainless steel, the bearing operates reliably across a wide temperature range without significant dimensional fluctuations.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | ||||||||||
| Flange | Open | Shield | d mm |
D mm |
Df mm |
B mm |
Bf mm |
B1 mm |
Bf1 mm |
rsmin mm |
Cr(kN) | Cor(kN) | Grease | Oil |
| - | SF633 | ZZ | 3 | 13 | - | 5 | - | 5 | - | 0.2 | 1.3 | 0.49 | 4.1 | 4.6 |
| F | SF634 | ZZ | 4 | 16 | 18 | 5 | 1 | 5 | 1 | 0.3 | 1.34 | 0.519 | 3.3 | 3.7 |
| F | SF635 | ZZ | 5 | 19 | 22 | 6 | 1.5 | 6 | 1.5 | 0.3 | 2.33 | 0.892 | 2.8 | 3.1 |
| - | SF636 | ZZ | 6 | 22 | - | 7 | - | 7 | - | 0.3 | 3.33 | 1.42 | 2.4 | 2.6 |
| - | SF637 | ZZ | 7 | 26 | - | 9 | - | 9 | - | 0.3 | 4.57 | 1.98 | 2 | 2.2 |
| - | SF638 | ZZ | 8 | 28 | - | 9 | - | 9 | - | 0.3 | 4.57 | 1.98 | 1.8 | 2.1 |
| - | SF639 | ZZ | 9 | 30 | - | 10 | - | 10 | - | 0.6 | 4.66 | 2.08 | 1.7 | 1.9 |

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