NAVA Needle Bearings Rnav4908–Rnav4912, High-Load, Precision Roller Bearings
Basic Info
| Inner Diameter | 48 mm |
|---|---|
| Outer Diameter | 62 mm |
| Thickness | 22 mm |
| Load Direction | Radial Bearing |
| Type | Closed Needle Roller Bearing |
| Material | Bearing Steel |
Introduction
RNAV4908 is a high-precision, closed-type needle roller bearing without inner/outer rings. Designed for radial loads, it features compact dimensions (48×62×22 mm), grease or oil lubrication, and precision grades P0–P2. Made in China with BDL trademark.
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Description
Key Features & Technical Highlights
| Description | Value |
|---|---|
| Ultra-Compact Design | No inner/outer ring — saves space, ideal for high-load, limited-axis applications |
| Precision Grades Available | P0, P6, P5, P4, P2 — meets strict OEM tolerances |
| High Radial Load Capacity | Optimized needle roller geometry delivers superior load distribution |
| Bearing Steel Construction | GCr15 (equivalent to SKF SSF1) — hardened, wear-resistant, long-life |
| Lubrication Flexibility | Pre-greased or oil-lubricated — ready for immediate installation |
| Tight Clearance Options | C0, C3, C4 — ensures optimal fit and thermal performance |
| Global Compliance | HS Code 8482102000 — certified for export; made in China under ISO 9001 |
| Proven Application Fit | Transmissions, gearboxes, agricultural machinery, hydraulic pumps, automotive chassis |
| OEM/ODM Support | Custom branding, packaging, specs — backed by 1M units/month capacity |
| SKF-Compatible Performance | Direct interchange with SKF NKI/NKIS/NA series — same dimensions & load ratings |
Why Choose Our RNAV49xx Series?
Engineered for reliability where space and load intersect — these closed-type needle roller bearings deliver SKF-level precision without premium pricing. Unlike generic alternatives, each batch undergoes 100% dimensional inspection and dynamic load testing. The absence of rings reduces weight and inertia while maximizing radial stiffness — critical for high-speed transmission systems. With grease or oil compatibility and C3 clearance as standard, they adapt seamlessly to thermal expansion in demanding environments. Trusted globally for agricultural, industrial, and automotive applications — request your free technical datasheet and interchange chart today.
