| Brand Name: | GQZ or OEM |
| Model Number: | 31305 |
| MOQ: | 2 |
| Price: | 15-20 USD |
| Delivery Time: | 5-7 working days after payment |
| Payment Terms: | T/T |
The 31305 Tapered Roller Bearing is meticulously engineered to accommodate heavy combined radial and axial loads simultaneously. Characterized by its steep angle design, this single-row metric tapered roller bearing delivers exceptional axial stiffness and superior running accuracy under severe thrust stress. It is widely used in heavy-duty gearboxes, vehicle axles, and rotating industrial machinery where reliable shaft alignment, high load ratings, and low operational friction are strictly required.
| Model | 31305 |
|---|---|
| Inner Diameter (ID – d) | 25.0 mm |
| Outer Diameter (OD – D) | 62.0 mm |
| Total Width / Thickness (T) | 18.25 mm |
| Cone Width (B) | 17.0 mm |
| Cup Width (C) | 13.0 mm |
| Structure | Single Row Tapered Roller Bearing (Separable Cup and Cone) |
| Material | High-Carbon Chromium Bearing Steel (Premium GCr15) |
| Cage Material | Pressed Steel Cage |
| Precision Rating | P6 / P5 / Normal Class |
No. A single row tapered roller bearing like the 31305 can only support axial forces acting in one direction. To accommodate bidirectional thrust loads or to position a shaft rigidly in both directions, these bearings are almost always mounted in pairs (either back-to-back or face-to-face arrangements) with proper preloading.
The 313-series is intentionally designed with a steep contact angle. This modification significantly increases its axial load-carrying capacity relative to its radial rating, making it highly effective for applications dominated by heavy thrust loads, such as pinion drives.
Our manufacturing plants are fully certified under ISO 9001:2015 global quality management guidelines. We maintain comprehensive tracing from raw materials to final dimensional audits to guarantee uniform international consistency.
Every bearing undergoes an anti-rust oil dip, is vacuum-sealed in a medical-grade plastic bag, packaged into an individual neutral box, and packed onto reinforced, moisture-wrapped plywood cases or pallets to completely block saltwater corrosion.