Description
Key Specifications & Benefits of SKF-Grade Needle Roller Bearings
| Feature | Description |
| Precision Dimensions | K42×50×17 / K45×53×20 / K48×54×25 / K50×58×20 / K50×58×25 mm — tight tolerance (P0–P2) for exact fit in compact machinery |
| Radial Load Capacity | Optimized for high radial loads with minimal axial space — ideal for gearboxes, transmissions & engine components |
| Bearing Steel Construction | GCr15 chrome steel (equivalent to SKF SS 2209), hardened to HRC 58–64 for extended service life |
| Ringless Design | Without inner/outer ring — saves weight and space; uses shaft/bore as raceway (ISO 3245 compliant) |
| Lubrication Flexibility | Pre-greased or oil-lubricated compatible — supports continuous operation under moderate speeds & temps |
| Closed Type Sealing | Dust- and leak-resistant design — reduces maintenance frequency and contamination risk |
| Clearance Options | C0 (standard), C3 (increased), C4 (extra-wide) — ensures thermal expansion compatibility |
| Global Compliance | HS Code 8482102000; meets ISO, DIN, and ABEC standards — certified for EU/US/ASEAN markets |
| OEM/ODM Ready | Custom branding, packaging & specs — backed by 1M pcs/month production capacity & 3–7 day lead time |
| Quality Assurance | 100% dimensional inspection + noise & vibration testing — zero defect policy before shipment |
Engineered for reliability where space is critical: automotive transmissions, agricultural hydraulics, textile machinery, and industrial pumps. Unlike generic imports, our bearings feature traceable heat treatment logs, batch-specific test reports, and direct SKF-equivalent material certification. Frequently asked: Are these interchangeable with SKF HK/K series? Yes — dimensions and load ratings match HK5025/K50X58X25. Need CAD files, bulk pricing, or application support? Send your inquiry now — our technical team replies within 2 hours.
