SKF · rolling bearings
SKF RPNA 25/42
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 | 25 mm |
|---|---|
| Outside diameter | 42 mm |
| Width | 20 mm |
| Basic dynamic load rating | 19 kN |
| Basic static load rating | 32.5 kN |
| Reference speed | 16000 r/min |
| Limiting speed | 18000 r/min |
| Bearing part | Bearing without inner ring |
| Number of rows | 1 |
| Outer ring type | Drawn cup with open ends |
| Aligning feature | With |
| Cage | Sheet steel |
| Number of flanges, outer ring | 2 |
| Tolerance class | Normal |
| Material, bearing | Bearing steel |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 0.4 kg CO_2e |
| Product net weight | 0.109 kg |
| eClass code | 23-05-09-03 |
| UNSPSC code | 31171512 |
| Dimensions · Diameter under rollers · (F_w) | 25 mm |
| Dimensions · Outside diameter · (D) | 42 mm |
| Dimensions · Width · (C) | 20 mm |
| Dimensions · Shoulder diameter sleeve · (D_1) | 36.5 mm |
| Dimensions · Chamfer dimension sheet steel sleeve · (r) · min. | 0.8 mm |
| Abutment dimensions · Smallest permissible abutment diameter housing · (D_a) · min. | 35 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · max. | 37 mm |
| Abutment dimensions · Fillet radius · (r_a) · max. | 0.8 mm |
| Calculation data · Basic dynamic load rating · (C) | 19 kN |
| Calculation data · Basic static load rating · (C_0) | 32.5 kN |
| Calculation data · Fatigue load limit · (P_u) | 4 kN |
| Calculation data · Reference speed | 16000 r/min |
| Calculation data · Limiting speed | 18000 r/min |
Family specifications and selection conditions
| Product description | Alignment needle roller bearings are self-aligning and offer a compact solution in applications where less space is available. Owing to their large number of rollers, they have a high load carrying capacity. Their internal design, where a convex outer ring meets two concave seating rings encased in a drawn sleeve, enables the bearings to accommodate initial static misalignment. Bearings without an inner ring are an excellent choice for compact bearing arrangements, if the shaft can be hardened and ground. |
|---|---|
| Manufacturer features | High radial load carrying capacity • Accommodate static initial misalignment • Low cross-sectional height • Suitable for compact bearing arrangements |
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.