NAVA Needle Roller Bearings Rnav4922-4930, High-Load, Low-Friction
Basic Info
| Inner Diameter | 125 mm |
|---|---|
| Outer Diameter | 150 mm |
| Thickness | 40 mm |
| Type | Needle Roller Bearing, Radial, Closed |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Introduction
RNAV4922 is a high-precision needle roller bearing without inner/outer rings, designed for radial load applications. Compact (125×150×40 mm), durable, and compatible with grease or oil lubrication. Available in precision grades P0–P2 and clearances C0–C4. Made in China, OEM/ODM supported.
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Description
Key Specifications & Advantages of SKF-Grade RNAV49 Series Needle Roller Bearings
| Description | Core Value |
|---|---|
| Model Range | RNAV4922–RNAV4930 (interchangeable with SKF HK/NA series) |
| Design | Drawn cup, no inner/outer ring — saves space, enables compact shaft mounting |
| Load Capacity | High radial load rating due to dense needle arrangement & hardened steel rollers |
| Material & Hardness | GCR15 bearing steel, HRC 58–64 — superior wear resistance & fatigue life |
| Precision & Clearance | P0–P2 accuracy; C0/C3/C4 clearance options — ensures optimal fit & low noise |
| Lubrication | Pre-greased (lithium complex) or oil-ready — ready for immediate installation |
| Application Scope | Automotive transmissions, gearboxes, pumps, agricultural machinery, industrial actuators |
| Quality Assurance | 100% dimensional inspection, vibration testing, ISO 9001 & IATF 16949 certified production |
| SKF Compatibility | Exact dimensional & performance match — direct replacement without redesign |
| Lead Time & Support | 3–7 days delivery; free technical consultation & OEM/ODM support available |
Engineered for reliability where space is tight and loads are high — the RNAV49 series delivers SKF-level performance at competitive trade pricing. Unlike generic alternatives, these bearings feature tighter roller diameter tolerance (±0.003 mm), optimized cage geometry for reduced friction, and consistent surface finish (Ra ≤ 0.2 μm). Common questions: Are they sealed? Yes — closed-type design prevents contamination. Can they run without a shaft shoulder? Yes — compatible with retained or press-fit applications. What’s the max speed? Up to 4,500 rpm (with proper lubrication & cooling). Ready to verify fitment or request samples? Contact us now for your customized quote.
