SKF · rolling bearings
SKF RNA 4838
Needle roller bearings — manufacturer technical reference and quotation support in Saudi Arabia.
لطلب عرض سعر في السعودية، أرسل رقم القطعة أو المقاس والكمية والمدينة. يُرجى تأكيد التوافق والتوفر والسعر مع فريقنا.
| Bore diameter of needle roller complement | 210 mm |
|---|---|
| Outside diameter | 240 mm |
| Width | 50 mm |
| Basic dynamic load rating | 220 kN |
| Basic static load rating | 710 kN |
| Reference speed | 1900 r/min |
| Limiting speed | 2200 r/min |
| Bearing part | Bearing without inner ring |
| Number of rows | 1 |
| Outer ring type | Machined (solid) |
| Aligning feature | Without |
| Cage | Sheet steel |
| Number of flanges, outer ring | 2 |
| Tolerance class | Normal |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | With |
| Indicative carbon footprint for new product | 11.9 kg CO_2e |
| Product net weight | 3.21 kg |
| eClass code | 23-05-09-03 |
| UNSPSC code | 31171512 |
| Dimensions · Diameter under rollers · (F_w) | 210 mm |
| Dimensions · Outside diameter · (D) | 240 mm |
| Dimensions · Width · (C) | 50 mm |
| Dimensions · Chamfer dimension outer ring · (r_1,2) · min. | 1.5 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · max. | 232 mm |
| Abutment dimensions · Fillet radius · (r_a) · max. | 1.5 mm |
| Calculation data · Basic dynamic load rating · (C) | 220 kN |
| Calculation data · Basic static load rating · (C_0) | 710 kN |
| Calculation data · Fatigue load limit · (P_u) | 73.5 kN |
| Calculation data · Reference speed | 1900 r/min |
| Calculation data · Limiting speed | 2200 r/min |
| Associated seals · Radial shaft seal | 210x240x15 HMS5 RG |
Family specifications and selection conditions
| Product description | Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication. |
|---|---|
| Manufacturer features | High radial load carrying capacity • High stiffness • Low cross-sectional height • Accommodate axial displacement in both directions |
Manufacturer references
Follow the complete manufacturer documentation for application restrictions, materials, tolerances and installation requirements. Limits may not apply simultaneously. We do not publish inferred stock, pricing or ratings.