31306 Single Row High‑Angle Tapered Roller Bearing
The 313 series features a steep contact angle design, delivering substantially higher axial‑load capacity compared to conventional 302 and 322 series tapered roller bearings. 31306 is a medium‑size high‑thrust single‑row tapered roller bearing engineered for transmission assemblies subject to heavy one‑sided axial thrust. Its separable cone‑cup structure supports convenient pre‑load adjustment, disassembly and routine field maintenance. Manufactured from premium GCr15 bearing steel, it maintains stable performance under combined radial‑axial cyclic loads, suitable for original‑equipment matching and global aftermarket spare‑part replacement.
表格
| Parameter | Value |
|---|---|
| Bearing Type | Single Row Tapered Roller Bearing |
| Model | 31306 |
| Bore d | 30 mm |
| Outer Diameter D | 72 mm |
| Total Width T | 20.75 mm |
| Inner Ring Width B | 19 mm |
| Outer Ring Width C | 14 mm |
| Approx Weight | 0.39 kg |
Core dimension: 30 × 72 × 20.75 mm
Key benefits: ‑ Extra‑steep taper angle delivers outstanding unidirectional axial thrust resistance ‑ Fully detachable cone‑cup simplifies installation, pre‑load setting and component replacement ‑ Precision‑honed raceway surfaces reduce frictional heat and extend operational service life ‑ P0 / P6 precision grades optional for different transmission‑accuracy requirements ‑ Compatible with grease lubrication and circulating‑oil lubrication systems ‑ Stamped steel cage ensures stable roller positioning under shock and fluctuating loads
Applications: Medium‑duty gearboxes, agricultural machinery gear drives, light construction equipment, general industrial transmission units. For operating conditions with bidirectional axial force, mount two bearings in opposed paired configuration.
Boyuan Bearing supplies 31306 taper roller bearing. Small‑batch sample orders and large‑volume export orders are both accepted. Custom internal clearance solutions can be provided according to your actual working‑condition parameters. Contact our sales team for stock check, complete datasheet and competitive bulk‑order quotation.



