SKF · rolling bearings
SKF RNU 304
Cylindrical 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.
| Diameter under rollers | 28.5 mm |
|---|---|
| Outside diameter | 52 mm |
| Width | 15 mm |
| Basic dynamic load rating | 20.5 kN |
| Basic static load rating | 16.6 kN |
| Reference speed | 15000 r/min |
| Limiting speed | 18000 r/min |
| Bearing part | Bearing without inner ring |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Number of flanges, outer ring | 2 |
| Loose flange | None |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Indicative carbon footprint for new product | 0.41 kg CO_2e |
| Product net weight | 0.11 kg |
| eClass code | 23-05-09-01 |
| UNSPSC code | 31171505 |
| Dimensions · Diameter under rollers · (F_w) | 28.5 mm |
| Dimensions · Outside diameter · (D) | 52 mm |
| Dimensions · Width · (C) | 15 mm |
| Dimensions · Shoulder diameter outer ring · (D_1) · ≈ | 40.55 mm |
| Dimensions · Corner radius · (r_1,2) · min. | 1.1 mm |
| Abutment dimensions · Abutment diameter shaft · (d_a) · max. | 31.8 mm |
| Abutment dimensions · Abutment diameter housing · (D_a) · max. | 45.5 mm |
| Abutment dimensions · Fillet radius · (r_a) · max. | 1 mm |
| Calculation data · Basic dynamic load rating · (C) | 20.5 kN |
| Calculation data · Basic static load rating · (C_0) | 16.6 kN |
| Calculation data · Fatigue load limit · (P_u) | 2.08 kN |
| Calculation data · Reference speed | 15000 r/min |
| Calculation data · Limiting speed | 18000 r/min |
| Calculation data · Calculation factor · (k_r) | 0.15 |
| Calculation data · Limiting value · (e) | 0.2 |
| Calculation data · Calculation factor · (Y) | 0.6 |
Family specifications and selection conditions
| Product description | Single row cylindrical roller bearings of the NU design without an inner ring consist of an outer ring with a roller and cage assembly. They are typically used in applications where hardened and ground raceways are provided on the shaft. Without the inner ring, a larger shaft diameter can be used to provide a stronger, stiffer shaft. The bearings can accommodate axial displacement in both directions, limited only by the width of the raceway on the shaft. |
|---|---|
| Manufacturer features | High radial load carrying capacity • Enable a stronger, stiffer shaft • Low friction • Long service life • 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.