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Technical Specification 
30204 7204E single row tapered roller bearings are engineered to support combined radial and thrust loads with minimal rolling resistance. The inner assembly—comprising the raceway, rollers, and cage—is separable from the outer ring, allowing for flexible installation, simplified disassembly, and easy maintenance. When used in matched pairs with preload, these bearings deliver high rigidity and precise shaft positioning. Ideal for heavy-duty applications, they offer:
Excellent capacity for both radial and axial forces
Support for axial loads in a single direction
Reduced friction for efficient, high-speed operation
Durable, replaceable, and service-friendly design
Technical Specification 
| Dimensions | Performance | |||
| d | 0.7874 in | Bore diameter | Basic dynamic load rating | 34.1 kN |
| D | 1.8504 in | Outside diameter | Basic static load rating | 28 kN |
| T | 0.6004 in | Total width | Reference speed | 12 000 r/min |
| d1 | ≈1.3268 in | Shoulder diameter of inner ring | Limiting speed | 15 000 r/min |
| B | 0.5512 in | Width of inner ring | ||
| C | 0.4724 in | Width of outer ring | ||
| r1,2 | min.0.0394 in | Chamfer dimension of inner ring | ||
| r3,4 | min.0.0394 in | Chamfer dimension of outer ring | ||
| a | 0.4342 in | Distance side face to pressure point |
| Abutment dimensions | ||
| da | max.28 mm | Diameter of shaft abutment |
| db | min.26.5 mm | Diameter of shaft abutment |
| Da | min.40 mm | Diameter of housing abutment |
| Da | max.41.5 mm | Diameter of housing abutment |
| Db | min.43 mm | Diameter of housing abutment |
| Ca | min.2 mm | Minimum width of space required in housing on large side face |
| Cb | min.3 mm | Minimum width of space required in housing on small side face |
| ra | max.1 mm | Radius of shaft fillet |
| rb | max.1 mm | Radius of housing fillet |
