30317 Tapered Roller Bearing
30317 is a well‑known single‑row tapered roller bearing from the 303 metric series. Characterized by its increased taper angle, this model delivers enhanced one‑way axial thrust performance while maintaining solid radial load capacity. Its separable cone and cup assembly can be disassembled individually, making preload adjustment and field maintenance much easier. Made of high‑grade GCr15 bearing steel, this component performs reliably under mixed heavy‑load and shock‑prone working cycles, widely stocked by spare‑part distributors and industrial equipment OEM clients worldwide.
30317 Full Technical Specs
表格
| Parameter | Value |
|---|---|
| Bearing Type | Single Row Tapered Roller Bearing |
| Model | 30317 |
| Bore d | 85 mm |
| Outer Diameter D | 180 mm |
| Total Width T | 41 mm |
| Inner Ring Width B | 38 mm |
| Outer Ring Width C | 32 mm |
| Approx Weight | 4.85 kg |
Core dimension: 85 × 180 × 41 mm (d × D × T)
Key Product Strengths
Enlarged taper geometry offers much stronger unidirectional thrust capability compared to standard 302 series bearings
Detachable cone‑cup layout supports quick disassembly, on‑site inspection and preload fine‑tuning during overhaul
Carefully finished raceway and roller surfaces cut frictional heat generation and extend service cycles
Multiple precision grades P0, P6, P5 are selectable for different transmission accuracy demands
Open‑type structure works great with high‑viscosity grease lubrication or circulating oil lubrication
Tough stamped steel cage stabilizes roller arrangement under variable impact‑heavy operating conditions
Real‑World Application Scenarios
30317 tapered roller bearings are frequently used on rotating positions requiring high thrust capacity: medium‑heavy truck axle hubs, high‑torque industrial gear reducers, mining auxiliary machinery transmission sections, construction machinery gearboxes, heavy agricultural equipment and heavy‑duty main conveyor shafts. When counter‑acting bidirectional axial force, it is normally mounted in opposed paired sets.
Supply & Custom Options
Boyuan Bearing manufactures and holds stock for 30317 tapered roller bearings. We accept small sample trial orders, large‑volume export shipments and OEM custom requirements. Custom internal clearance and alternative cage solutions can be arranged according to your operating‑condition specifications.
Get in touch with Boyuan Bearing for 30317 stock updates, complete datasheets and competitive wholesale pricing.



