NAVA Needle Roller Bearings Rnav4914-4920, High-Load, Precision Fit
Basic Info
| Inner Diameter | 80 mm |
| Outer Diameter | 100 mm |
| Thickness | 30 mm |
| Type | Needle Roller Bearing, Closed, Radial |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
Introduction
RNAV4914 is a high-precision needle roller bearing without inner/outer rings, ideal for compact radial load applications. Made of premium bearing steel, it supports P0–P2 precision grades and C0–C4 clearances. Supplied with grease or oil lubrication, it ensures smooth operation and long service life in industrial machinery.
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Description
Key Specifications & Advantages of RNAV4914–RNAV4920 Needle Roller Bearings
| Description | Core Value |
|---|---|
| Ultra-compact design (e.g., 80×100×30 mm) | Maximizes load capacity in minimal radial space — ideal for tight-engineered machinery |
| Radial-only, cageless needle roller structure | Higher dynamic load rating vs. standard deep-groove bearings of same OD |
| Bearing steel (GCr15) with precision ground raceways | Ensures P0–P2 accuracy and C0–C4 clearance control for consistent performance |
| Closed-type, oil/grease-lubricated | Sealed against contamination; extends service life in harsh industrial environments |
| No inner/outer ring design | Reduces weight & inertia; enables direct shaft/housing mounting — lowers assembly cost |
| Made in China, ISO/TS 16949 compliant | BDL-manufactured with 1M pcs/year capacity — reliable OEM/ODM supply chain |
| HS Code 8482102000 — globally accepted | Faster customs clearance; compatible with SKF-compatible replacement programs |
| Used in automotive transmissions, gearboxes, pumps & construction equipment | Proven in high-cycle, moderate-speed applications demanding rigidity & low friction |
| Complies with SKF RNAV series dimensional standards | Direct drop-in replacement for legacy SKF RNAV49xx — no redesign needed |
| 3–7 day delivery + carton/pallet packaging | Fast lead time supports JIT inventory — backed by 12-month quality warranty |
Why choose these over generic alternatives? Unlike economy-grade needle rollers, our RNAV49xx series features tighter raceway roundness (≤0.005 mm), optimized roller end geometry to reduce edge stress, and batch-tested hardness (60–64 HRC). All units undergo 100% noise & rotation testing.
FAQ: Q: Are these suitable for high-speed applications? A: Optimized for ≤3,000 rpm — consult engineering team for >3,500 rpm use. Q: Can they replace SKF RNAV4916 exactly? A: Yes — identical ABEC/P0 tolerances and load ratings. Q: Is custom clearance available? A: Yes — C3/C4 options shipped within 5 working days.
Ready to validate fitment or request samples? Contact us today for technical datasheets and volume pricing.
