SKF · rolling bearings
SKF NNU 4164 F
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.
| Bore diameter | 320 mm |
|---|---|
| Outside diameter | 540 mm |
| Width | 218 mm |
| Basic dynamic load rating | 3690 kN |
| Basic static load rating | 6200 kN |
| Reference speed | 1000 r/min |
| Limiting speed | 1300 r/min |
| Bearing part | Complete bearing |
| Axial displacement capability | In both directions |
| Number of rows | 2 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Sheet metal |
| Number of flanges, outer ring | 3 |
| Number of flanges, inner ring | 0 |
| Loose flange | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Candidate for remanufacturing | Yes |
| Indicative carbon footprint for new product | 747 kg CO_2e |
| Indicative carbon footprint for remanufactured product | 248 kg CO_2e |
| Product net weight | 202 kg |
| eClass code | 23-05-09-01 |
| UNSPSC code | 31171505 |
| Design variant/feature | NNU |
| Dimensions · Bore diameter · (d) | 320 mm |
| Dimensions · Outside diameter · (D) | 540 mm |
| Dimensions · Overall bearing width · (B) | 218 mm |
| Dimensions · Shoulder diameter outer ring · (D_1) · ≈ | 476 mm |
| Dimensions · Raceway diameter inner ring · (F) | 375 mm |
| Dimensions · Chamfer dimension outer ring · (r_1,2) · min. | 5 mm |
| Dimensions · Chamfer dimension inner ring · (r_3,4) · min. | 5 mm |
| Dimensions · Permissible axial displacement from the normal position of one bearing ring relative to the other · (s) · max. | 8.9 mm |
| Abutment dimensions · Abutment diameter spacer sleeve · (d_a) · min. | 340 mm |
| Abutment dimensions · Abutment diameter spacer sleeve · (d_a) · max. | 365 mm |
| Abutment dimensions · Abutment diameter shaft · (d_b) · min. | 379 mm |
| Abutment dimensions · Abutment diameter spacer sleeve / housing · (D_a) · max. | 520 mm |
| Abutment dimensions · Fillet radius · (r_a) · max. | 4 mm |
| Abutment dimensions · Fillet radius · (r_b) · max. | 4 mm |
| Calculation data · Basic dynamic load rating · (C) | 3690 kN |
| Calculation data · Basic static load rating · (C_0) | 6200 kN |
| Calculation data · Fatigue load limit · (P_u) | 530 kN |
| Calculation data · Reference speed | 1000 r/min |
| Calculation data · Limiting speed | 1300 r/min |
| Calculation data · Calculation factor · (k_r) | 0.13 |
Family specifications and selection conditions
| Product description | Double row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having three flanges on the outer ring and no flanges on the inner ring, NNU design bearings can accommodate axial displacement in both directions. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged. Also available on request with special sized bore and/or outside diameters, suitable for reworked shafts and housings. |
|---|---|
| Manufacturer features | High radial load carrying capacity • Low friction • Long service life • Separable design • 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.