30300 Series (Metric Single Row)
Material: Chrome Steel (Gcr15) / Case-Hardened Steel
Structure: Single Row / Metric / Medium Series
Precision: P0, P6, P5
Cage: Pressed Steel
Clearance: C2, C0, C3 (Axial)
Bore Range: 17mm – 80mm
Application: Truck axles, heavy gearboxes, conveyor drive units
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The 30300 Series metric single-row tapered roller bearings in the medium series deliver enhanced load capacity with a wider cross-section design. Engineered for demanding applications requiring higher dynamic load ratings, these bearings excel in truck axles, heavy industrial gearboxes, and conveyor drive units where reliability under severe conditions is non-negotiable.
Technical Specifications
| Bearing No. | Bore (d) mm | Outer Dia. (D) mm | Width (B) mm | Dyn. Load Cr (kN) | Stat. Load Cor (kN) | Ref. Speed (rpm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 30302 | 15 | 42 | 14.25 | 20.8 | 21 | 11000 | 0.095 |
| 30303 | 17 | 47 | 15.25 | 26.2 | 27 | 10000 | 0.13 |
| 30304 | 20 | 52 | 16.25 | 31 | 31.5 | 9000 | 0.165 |
| 30305 | 25 | 62 | 18.25 | 44.5 | 48.5 | 7500 | 0.26 |
| 30306 | 30 | 72 | 20.75 | 59 | 63 | 6700 | 0.39 |
| 30307 | 35 | 80 | 22.75 | 71.2 | 76.5 | 6000 | 0.515 |
| 30308 | 40 | 90 | 25.25 | 86 | 100 | 5300 | 0.75 |
| 30309 | 45 | 100 | 27.25 | 102 | 118 | 4800 | 1 |
| 30310 | 50 | 110 | 29.25 | 120 | 138 | 4300 | 1.3 |
| 30311 | 55 | 120 | 31.5 | 142 | 168 | 4000 | 1.65 |
| 30312 | 60 | 130 | 33.5 | 160 | 188 | 3600 | 2 |
| 30313 | 65 | 140 | 36 | 182 | 218 | 3400 | 2.55 |
| 30314 | 70 | 150 | 38 | 208 | 250 | 3000 | 3.1 |
