The R133 is an imperial-sized stainless steel bearing designed primarily for overseas markets and as a replacement part for imported equipment. Constructed from SUS304 stainless steel, it exhibits exceptional chemical stability in humid environments, effectively preventing surface flaking caused by oxidation.
Bearing Features
Its design emphasizes precise tolerance matching between the inner and outer diameters, ensuring a secure fit within imperial-standard housings. In terms of material safety, SUS304 stainless steel complies with environmental and food safety standards, ensuring the bearing does not release harmful metal ions during operation. Commonly found in precision clockwork mechanisms, small pneumatic actuators, and high-end toys, the bearing’s excellent toughness ensures resistance to breakage when subjected to unexpected lateral thrust.
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 | SR133 | ZZ | 0.0938 | 2.381 | 0.1875 | 4.762 | 0.234 | 5.944 | 0.0625 | 1.588 | 0.018 | 0.457 | 0.0938 | 2.381 | 0.031 | 0.787 | 0.0039 | 0.1 | 0.186 | 0.059 | 9.2 | 10.4 |

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