Although SUS304 has a lower hardness than 420-grade steel, its yield strength is sufficient to handle the load requirements of most consumer electronics and light industrial products. The R155 flange increases the contact area with the mounting surface, thereby distributing the axial load and reducing pressure on the edges of the mounting holes.
Bearing Features
In environments with fluctuating temperatures, the linear expansion coefficient of SUS304 is comparable to that of most alloy steel and stainless steel brackets; this ensures that, as temperatures rise, the flanged bearing does not experience drastic changes in internal clearance or loosening of the flange due to unbalanced thermal expansion. Bearings of this type typically feature an exceptionally high-quality surface finish, offering not only an attractive appearance but also a premium industrial aesthetic when the flange connects to the equipment housing.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | ||||||||||||||||||
| Flange | Open | Shield | d inch |
d mm |
D inch |
D mm |
Df inch |
Df mm |
B inch |
B mm |
Bf inch |
Bf mm |
B1 inch |
B1 mm |
Bf1 inch |
Bf1 mm |
rsmin inch |
rsmin mm |
Cr kN |
Cor kN |
Grease | Oil |
| F | SFR155 | ZZ | 0.1562 | 3.969 | 0.3125 | 7.938 | 0.359 | 9.119 | 0.1094 | 2.778 | 0.023 | 0.584 | 0.125 | 3.175 | 0.036 | 0.914 | 0.0039 | 0.1 | 0.363 | 0.147 | 5.5 | 6.2 |

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