Taper roller bearings consist of an inner ring (cone), an outer ring (cup), a cage, and tapered rollers. The roller tracks are designed so that the conical surfaces and roller center lines meet at a common apex on the main shaft axis, ensuring true rolling action.
These bearings excel at supporting high radial loads and axial thrust loads in one direction. Usually operated in pairs (face-to-face or back-to-back configurations) to control preloads, they are standard in vehicle wheel axles, transmissions, differential gearboxes, agricultural shafts, and industrial machinery cone assemblies.
Standard dimensional parameters for popular 30200, 32200 and 32300 tapered series.
| Bearing Model | Bore (d) | Outer Dia (D) | Width (T) | Dynamic Load (Cr) | Static Load (Cor) | Limiting Speed (Oil) | Assembly Weight |
|---|---|---|---|---|---|---|---|
| 30203 | 17 mm | 40 mm | 13.25 mm | 18.3 kN | 18.0 kN | 11,000 RPM | 0.08 kg |
| 30205 | 25 mm | 52 mm | 16.25 mm | 31.9 kN | 32.5 kN | 8,500 RPM | 0.15 kg |
| 30210 | 50 mm | 90 mm | 21.75 mm | 78.1 kN | 88.0 kN | 5,000 RPM | 0.51 kg |
| 32210 | 50 mm | 90 mm | 24.75 mm | 91.3 kN | 108.0 kN | 4,800 RPM | 0.61 kg |
| 32215 | 75 mm | 130 mm | 33.25 mm | 172.0 kN | 220.0 kN | 3,400 RPM | 1.60 kg |
| 32310 | 50 mm | 110 mm | 42.25 mm | 180.0 kN | 212.0 kN | 4,000 RPM | 1.80 kg |
| 32314 | 70 mm | 150 mm | 54.25 mm | 305.0 kN | 380.0 kN | 3,000 RPM | 4.20 kg |
| 33215 | 75 mm | 130 mm | 41.00 mm | 232.0 kN | 310.0 kN | 3,200 RPM | 2.10 kg |
* Case-carburized steel options are available for severe impact workloads in mining crushers.
Understanding the technical suffixes, clearance prefixes, and material ratings used in industrial procurement.
Critical engineering parameters, structure details, and operating limits to help you select the ideal component.
Tapered rollers and raceways are designed as sections of cones. Their contact lines project to a single apex point on the shaft axis, ensuring true rolling motion with zero sliding friction.
Engineered to support heavy radial loads and heavy unidirectional axial forces simultaneously. Contact angle governs the ratio of radial to axial load carrying capacity.
Commonly installed in pairs on truck wheel axles, heavy-duty gearboxes, automotive differentials, agricultural hubs, and industrial screw compressors.
These bearings are engineered to deliver reliable rotation and support critical equipment in harsh sectors, including:
Carries combined radial and cornering loads inside automobile and truck wheel hub assemblies.
Secures pinion shafts and ring gears inside automotive gear differentials.
Provides rigid shaft support inside harvester gearboxes and tractor wheel hubs.
Supports precision work spindles in heavy lathes and milling machine headstocks.
Technical details, selection parameters, and service queries resolved by our engineering sales team.
