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| Parameter | SKF25580/2552044.45 × 82.931 × mm | TIMKEN25580 / K15096144.45 × 82.931 × 23.812 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | TIMKEN |
| Designation | 25580/25520 | 25580 / K150961 |
| Product family | Tapered roller bearings | TS - Tapered Single |
| Detailed type | Single row tapered roller bearing | Tapered roller bearings |
| Series | — | 25500 |
| Bore diameterd | 44.45 mm | 44.45 mm |
| Outside diameterD | 82.931 mm | 82.931 mm |
| WidthB | — | 23.812 mm |
| Basic dynamic load ratingC | 99.1 kN | 90.5 kN |
| Basic static load ratingC0 | 106 kN | 111 kN |
| Fatigue load limitPu | 11.8 kN | — |
| Reference speednref | 6700 r/min | — |
| Limiting speednG | 8000 r/min | — |
| Mass≈m | 0.56 kg | 0.56 kg |
| Sealing | Without | — |
| Cage | Sheet metal | — |
| Lubricant | None | — |
| Calculation Factors | ||
| K Factor | — | 1.74 |
| Y1 Factor | — | 1.79 |
| Y2 Factor | — | -1.00 |
| Y0 Factor | — | 0.99 |
| E Factor | — | 0.33 |
| Cg Factor | — | 0.0801 |
| Dimensions | ||
| Width, total | 25.4 mm | — |
| Width, inner ring | 25.4 mm | — |
| Width, outer ring | 19.05 mm | — |
| Contact angle | 12.6 ° | — |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | max. 53 mm | — |
| Diameter of shaft abutmentd b | min. 57 mm | — |
| Diameter of housing abutmentD a | max. 76.5 mm | — |
| Diameter of housing abutmentD b | min. 76 mm | — |
| Minimum width of space required in housing on large side faceC a | min. 5 mm | — |
| Minimum width of space required in housing on small side faceC b | min. 4.5 mm | — |
| Radius of shaft filletr a | max. 3.5 mm | — |
| Radius of housing filletr b | max. 0.8 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Limiting valuee | 0.33 | — |
| Calculation factorY | 1.8 | — |
| Calculation factorY 0 | 1 | — |
| Engineering — Dimensions | ||
| Bearing width, totalT | 23.812 mm | — |
| Shoulder diameter of inner ringd 1 | ≈ 62.2 mm | — |
| Width of inner ringB | 25.4 mm | — |
| Width of outer ringC | 19.05 mm | — |
| Chamfer dimension of inner ringr 1,2 | min. 3.5 mm | — |
| Chamfer dimension of outer ringr 3,4 | min. 0.8 mm | — |
| Distance side face to pressure pointa | 16.993 mm | — |
| Engineering — Engineering specifications | ||
| Dimension series | 25500 | — |
| Logistics | ||
| Product net weight | 0.56 kg | — |
| eClass code | 23-05-09-10 | — |
| UNSPSC code | 31171516 | — |
| Manufacturer Identity | ||
| Material Number | — | 100048254100069469 |
| World Assembly Part Number | — | 25580 / K150961 |
| Inner Ring Part Number | — | 25580 |
| Outer Ring Part Number | — | K150961 |
| Official Source System | — | TS_PREPAIR |
| Official Last Run | — | 2026-08-23T00:00:00 |
| Product identity | ||
| Official product category | Tapered roller bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | — |
| Structure group ID | BT1_001_101 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Type Description | — | TS - Tapered Single |
| Number Of Rows | 1 | 1 |
| Tapered Bore | — | N |
| Properties | ||
| Bearing part | Complete bearing | — |
| Locating feature, bearing outer ring | Without | — |
| Bore type | Cylindrical | — |
| Arrangement of contact angle (double-row bearing) | Not applicable | — |
| Matched arrangement | No | — |
| Coating | Without | — |
| Relubrication feature | Without | — |
| Unit system | Inch | — |
| Indicative carbon footprint for new product | 2.1 kg CO 2 e | — |
| Technical Data | ||
| Overall Width | — | 26.900 mm |
| Radial Rating | — | 23,500 N |
| Axial Rating | — | 13,500 N |
| Dynamic Rating C1 | — | 90,500 N |
| Dynamic Rating C90 | — | 23,500 N |
| Dynamic Axial Rating Ca90 | — | 13,500 N |
| Dynamic Axial Rating Ca1 | — | 51,900 N |
| Static Radial Rating C0 | — | 111,000 N |
| Extended Dynamic Rating Ce | — | 0 N |
| Static Axial Rating C0A | — | 108,000 N |
Independent reference comparison based on the manufacturer data currently loaded. Always verify current limits, tolerances and suffix definitions with the official source before engineering selection.