30318 Tapered Roller Bearing
30318 belongs to the high‑thrust 303 metric tapered roller bearing series. Featuring a steep taper angle, it excels at bearing heavy one‑direction axial loads alongside substantial radial loads. The separable cone and cup assembly enables convenient disassembly, clearance checking and preload tuning during assembly and field repair. Constructed from premium GCr15 bearing steel, it runs steadily under heavy loads and intermittent shock impacts, widely adopted by vehicle repair workshops and international industrial equipment suppliers.
30318 Full Technical Specs
表格
| Parameter | Value |
|---|---|
| Bearing Type | Single Row Tapered Roller Bearing |
| Model | 30318 |
| Bore d | 90 mm |
| Outer Diameter D | 190 mm |
| Total Width T | 46.5 mm |
| Inner Ring Width B | 43 mm |
| Outer Ring Width C | 35 mm |
| Approx Weight | 6.45 kg |
Core dimension: 90 × 190 × 46.5 mm (d × D × T)
Key Product Strengths
Steep taper angle design provides remarkable unidirectional axial thrust capacity, outperforming standard 302 series bearings
Fully detachable cone‑cup structure simplifies on‑site inspection, component replacement and preload adjustment
Precision‑ground raceway and roller surfaces reduce frictional heat and slow down wear progression
Multiple precision grades P0, P6, P5 available to match various transmission accuracy standards
Open‑type design compatible with heavy‑duty grease lubrication and circulating oil lubrication systems
Durable stamped steel cage maintains stable roller positioning under fluctuating impact‑loaded conditions
Real‑World Application Scenarios
30318 tapered roller bearings are widely fitted for assemblies requiring high thrust performance: heavy‑truck axle hubs, high‑torque industrial gear reducers, mining auxiliary transmission units, construction machinery gearboxes, heavy agricultural machinery and heavy‑load conveyor main shafts. To resist bidirectional axial force, this bearing is generally installed in opposed paired arrangements.
Supply & Custom Options
Boyuan Bearing manufactures and stocks 30318 tapered roller bearings. Small sample orders, mass export shipments and OEM custom demands are all supported. Special internal clearance classes and alternative cage options can be provided upon your technical requirements.
Contact Boyuan Bearing for 30318 stock status, full technical datasheets and competitive wholesale quotations.
