SKF · rolling bearings
SKF 639174
Tapered 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 | 26 mm |
|---|---|
| Outside diameter | 52 mm |
| Width, total | 15 mm |
| Width, inner ring | 14.26 mm |
| Width, outer ring | 12.7 mm |
| Contact angle | 14.8 ° |
| Basic dynamic load rating | 28.6 kN |
| Basic static load rating | 31 kN |
| Reference speed | 10000 r/min |
| Limiting speed | 14000 r/min |
| Bearing part | Complete bearing |
| Number of rows | 1 |
| Locating feature, bearing outer ring | Without |
| Bore type | Cylindrical |
| Cage | Sheet metal |
| Arrangement of contact angle (double-row bearing) | Not applicable |
| Matched arrangement | No |
| Coating | Without |
| Sealing | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Unit system | Metric |
| Indicative carbon footprint for new product | 0.52 kg CO_2e |
| Product net weight | 0.14 kg |
| eClass code | 23-05-09-10 |
| UNSPSC code | 31171516 |
| Dimension series | NSTD |
| Dimensions · Bore diameter · (d) | 26 mm |
| Dimensions · Outside diameter · (D) | 52 mm |
| Dimensions · Bearing width, total · (T) | 15 mm |
| Dimensions · Shoulder diameter of inner ring · (d_1) · ≈ | 37.8 mm |
| Dimensions · Width of inner ring · (B) | 14.26 mm |
| Dimensions · Width of outer ring · (C) | 12.7 mm |
| Dimensions · Chamfer dimension of inner ring · (r_1,2) · min. | 2.8 mm |
| Dimensions · Chamfer dimension of outer ring · (r_3,4) · min. | 1.5 mm |
| Dimensions · Distance side face to pressure point · (a) | 11 mm |
| Abutment dimensions · Diameter of shaft abutment · (d_a) · max. | 31 mm |
| Abutment dimensions · Diameter of shaft abutment · (d_b) · min. | 36.5 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · min. | 43 mm |
| Abutment dimensions · Diameter of housing abutment · (D_a) · max. | 45 mm |
| Abutment dimensions · Diameter of housing abutment · (D_b) · min. | 48 mm |
| Abutment dimensions · Minimum width of space required in housing on large side face · (C_a) · min. | 3 mm |
| Abutment dimensions · Minimum width of space required in housing on small side face · (C_b) · min. | 2 mm |
| Abutment dimensions · Radius of shaft fillet · (r_a) · max. | 2.8 mm |
| Abutment dimensions · Radius of housing fillet · (r_b) · max. | 1.5 mm |
| Calculation data · Basic dynamic load rating · (C) | 28.6 kN |
| Calculation data · Basic static load rating · (C_0) | 31 kN |
| Calculation data · Fatigue load limit · (P_u) | 3.25 kN |
| Calculation data · Reference speed | 10000 r/min |
| Calculation data · Limiting speed | 14000 r/min |
| Calculation data · Limiting value · (e) | 0.4 |
| Calculation data · Calculation factor · (Y) | 1.5 |
| Calculation data · Calculation factor · (Y_0) | 0.8 |
Family specifications and selection conditions
| Product description | Single row tapered roller bearings are designed to accommodate combined radial and axial loads and provide low friction during operation. The inner ring, with rollers and cage, can be mounted separately from the outer ring. These separable and interchangeable components facilitate mounting, dismounting and maintenance. By mounting one single row tapered roller bearing against another and applying a preload, a rigid bearing application can be achieved. Also available on request with special sized bore and/or outside diameters, suitable for reworked shafts and housings. |
|---|---|
| Manufacturer features | High radial and axial load carrying capacity • Accommodate axial loads in one direction • Low friction and long service life • Separable and interchangeable components |
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.