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Technical Specification .webp "30304 7304E Roller Bearings")
.webp "30304 7304E Metric Tapered Roller Bearings")
.webp "30304 7304E Tapered Roller Bearings")
.webp "diagram of dsbr metric tapered roller bearings (2)")
30304 7304E 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.
The 30304 7304E tapered roller bearing is built for light to medium-load applications. With its compact profile and precision contact geometry, it ensures excellent radial and axial load support. Ideal for automotive gearboxes, agricultural implements, and electric motors.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 | ||
| d | 20 mm | Bore diameter |
| D | 52 mm | Outside diameter |
| T | 16.25 mm | Total width |
| d1 | ≈34.4 mm | Shoulder diameter of inner ring |
| B | 15 mm | Width of inner ring |
| C | 13 mm | Width of outer ring |
| r1,2 | min.1.5 mm | Chamfer dimension of inner ring |
| r3,4 | min.1.5 mm | Chamfer dimension of outer ring |
| a | 11.15 mm | Distance side face to pressure point |
| Abutment dimensions | ||
| da | max.28 mm | Diameter of shaft abutment |
| db | min.27.5 mm | Diameter of shaft abutment |
| Da | min.44 mm | Diameter of housing abutment |
| Da | max.45.5 mm | Diameter of housing abutment |
| Db | min.47 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.1.5 mm | Radius of shaft fillet |
| rb | max.1.5 mm | Radius of housing fillet |
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