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| Parameter | SKF81280 M400 × 540 × mm | INA81280-M400 × 540 × 112 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | INA |
| Designation | 81280 M | 81280-M |
| Product family | Cylindrical roller thrust bearings | — |
| Detailed type | Single row cylindrical roller thrust bearing, single direction | Axial cylindrical roller bearing |
| Series | — | 81280 |
| Bore diameterd | 400 mm | 400 mm |
| Outside diameterD | 540 mm | 540 mm |
| WidthB | — | 112 mm |
| HeightH | 112 mm | — |
| Basic dynamic load ratingC | 2120 kN | — |
| Basic static load ratingC0 | 10400 kN | — |
| Fatigue load limitPu | 735 kN | — |
| Reference speednref | 240 r/min | 184 r/min |
| Limiting speednG | 500 r/min | 610 r/min |
| Mass≈m | 79 kg | 81.736 kg |
| Bearing material | Bearing steel | — |
| Minimum operating temperatureTmin | — | -30 °C |
| Maximum operating temperatureTmax | — | 120 °C |
| Engineering — Abutment dimensions | ||
| Abutment diameter shaftd a | min. 531 mm | — |
| Abutment diameter housingD a | max. 433 mm | — |
| Fillet radiusr a | max. 3 mm | — |
| Engineering — Calculation data | ||
| Minimum axial load factorA | 8.7 | — |
| Engineering — Dimensions | ||
| Outside diameter shaft washerd 1 | 535 mm | — |
| Bore diameter housing washerD 1 | 405 mm | — |
| Height shaft washerB | 33.5 mm | — |
| Chamfer dimension housing washerr 1,2 | min. 4 mm | — |
| Engineering — Included products | ||
| Shaft washer | IW-81280 | — |
| Housing washer | OW-81280 | — |
| Logistics | ||
| Product net weight | 79.0 kg | — |
| eClass code | 23-05-11-01 | — |
| UNSPSC code | 31171507 | — |
| Manufacturer Identity | ||
| Schaeffler Product Code | — | 395929 |
| Base Type | — | 81280 |
| Old Designation | — | ["812 80 M"] |
| Gpsd Group | — | I02 |
| Product Line Id | — | 75 |
| X Life Marking | — | n.r. |
| Product identity | ||
| Official product category | Cylindrical roller thrust bearings | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/cylindrical-roller-thrust-bearings | — |
| Structure group ID | BGS_001_002_003 | — |
| Available from SKF | Yes | — |
| Remanufacturable | No | — |
| Product Identity | ||
| Construction | — | Axial cylindrical roller bearing 812..-M, single row |
| Short Description | — | Axial cylindrical roller bearing |
| Properties | ||
| Bearing part | Complete bearing | — |
| Axial load capability | Single-direction | — |
| Number of rows | 1 | — |
| Material, bearing | Bearing steel | — |
| Coating | Without | — |
| Indicative carbon footprint for new product | 292.0 kg CO 2 e | — |
| Technical Data | ||
| Bore Diameter (D) | — | 400 mm |
| Outside Diameter (D) | — | 540 mm |
| Width (B) | — | 112 mm |
| Basic Dynamic Load Rating, Axial (Ca) | — | 2,850,000 N |
| Basic Static Load Rating, Axial (C0A) | — | 11,500,000 N |
| Operating Temperature Min. (Tmin) | — | -30 °C |
| Minimum Diameter Shaft Shoulder (Da) | — | 531 mm |
| Operating Temperature Max. (Tmax) | — | 120 °C |
| Limiting Speed (Ng) | — | 610 1/min |
| Reference Speed (Nϑr) | — | 184 1/min |
| Maximum Recess Radius (Ra Max) | — | 4 mm |
| Maximum Diameter Of Housing Shoulder (Da) | — | 433 mm |
| Rip Diameter Shaft Washer (D1) | — | 535 mm |
| Bore Diameter Housing Washer (D1) | — | 405 mm |
| Minimum Chamfer Dimension (Rmin) | — | 4 mm |
| Fatigue Load Limit, Axial (Cua) | — | 930,000 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.