Series Guide5 min read
6300 Series Bearings: Medium Duty Heavy Radial Load Ball Bearings Guide
Engineering guide to the 6300 medium series deep groove ball bearings. Engineered with larger rolling elements for shock loads and heavy mechanical transmissions.
1. 6300 Series Overview The **6300 Series** represents the medium duty metric series. Designed with larger steel balls and heavier raceway sections, 6300 bearings provide significantly increased radial and axial dynamic load capacity (approx. 25–40% greater than equivalent bore 6200 series), making them ideal for heavy industrial gearboxes and shock-loaded drive shafts.
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2. 6300 Series Standard Dimensional Chart
| Bearing Number | Bore ($d$ mm) | Outer Diameter ($D$ mm) | Width ($B$ mm) | Dynamic Load $C_r$ (kN) | Static Load $C_{0r}$ (kN) | Reference Speed (RPM) |
| 6304 | 20 | 52 | 15 | 15.90 | 7.80 | 17,000 |
| 6305 | 25 | 62 | 17 | 22.50 | 11.60 | 14,000 |
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