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| Parameter | SKF36990/36920177.8 × 227.012 × mm | TIMKEN36990H-905A8177.8 × 227.012 × 30.162 mm |
|---|---|---|
| Comparable specifications | ||
| Brand | SKF | TIMKEN |
| Designation | 36990/36920 | 36990H-905A8 |
| Product family | Tapered roller bearings | TS - Tapered Single |
| Detailed type | Single row tapered roller bearing | Tapered roller bearings |
| Series | — | 36900 |
| Bore diameterd | 177.8 mm | 177.8 mm |
| Outside diameterD | 227.012 mm | 227.012 mm |
| WidthB | — | 30.162 mm |
| Basic dynamic load ratingC | 231 kN | 197 kN |
| Basic static load ratingC0 | 425 kN | 458 kN |
| Fatigue load limitPu | 40 kN | — |
| Reference speednref | 2000 r/min | — |
| Limiting speednG | 2400 r/min | — |
| Mass≈m | 2.88 kg | 2.96 kg |
| Precision class | — | ABMA Class 0 |
| Sealing | Without | Open |
| Cage | Sheet metal | Steel cage |
| Lubricant | None | — |
| Calculation Factors | ||
| K Factor | — | 1.33 |
| Y1 Factor | — | 1.36 |
| Y2 Factor | — | 0.00 |
| Y0 Factor | — | 0.75 |
| E Factor | — | 0.44 |
| Cg Factor | — | 0.1434 |
| Dimensions | ||
| Width, total | 30.162 mm | — |
| Width, inner ring | 30.162 mm | — |
| Width, outer ring | 23.02 mm | — |
| Contact angle | 16.4 ° | — |
| Engineering — Abutment dimensions | ||
| Diameter of shaft abutmentd a | max. 190 mm | — |
| Diameter of shaft abutmentd b | min. 189.5 mm | — |
| Diameter of housing abutmentD a | max. 216 mm | — |
| Diameter of housing abutmentD b | min. 220 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. 7 mm | — |
| Radius of shaft filletr a | max. 1.5 mm | — |
| Radius of housing filletr b | max. 1.5 mm | — |
| Engineering — Calculation data | ||
| SKF performance class | SKF Explorer | — |
| Limiting valuee | 0.44 | — |
| Calculation factorY | 1.4 | — |
| Calculation factorY 0 | 0.8 | — |
| Engineering — Dimensions | ||
| Bearing width, totalT | 30.162 mm | — |
| Shoulder diameter of inner ringd 1 | ≈ 203.1 mm | — |
| Width of inner ringB | 30.162 mm | — |
| Width of outer ringC | 23.02 mm | — |
| Chamfer dimension of inner ringr 1,2 | min. 1.5 mm | — |
| Chamfer dimension of outer ringr 3,4 | min. 1.5 mm | — |
| Distance side face to pressure pointa | 42.675 mm | — |
| Engineering — Engineering specifications | ||
| Dimension series | 36900 | — |
| Logistics | ||
| Product net weight | 2.88 kg | — |
| eClass code | 23-05-09-10 | — |
| UNSPSC code | 31171516 | — |
| Manufacturer Identity | ||
| Material Number | — | 000000000190004423 |
| World Assembly Part Number | — | 36990H_36920 |
| Inner Ring Part Number | — | 36990H |
| Outer Ring Part Number | — | 36920 |
| Drawing Number | — | B-94706 |
| Upc | — | 0053893099057 |
| Official Source System | — | CORE BP - DS DF |
| Official Last Run | — | 2026-08-23T20:02:47.383 |
| 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 |
| Construction | — | Single Row Tapered Roller Bearing Assembly | Imperial Series | 7.0000 in Bore | 8.9375 in OD | 1.1875 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 0 |
| 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 | 10.7 kg CO 2 e | — |
| Technical Data | ||
| Overall Width | — | 34.662 mm |
| Radial Rating | — | 51,200 N |
| Axial Rating | — | 38,600 N |
| Dynamic Rating C1 | — | 197,000 N |
| Dynamic Rating C90 | — | 51,200 N |
| Dynamic Axial Rating Ca90 | — | 38,600 N |
| Dynamic Axial Rating Ca1 | — | 149,000 N |
| Static Radial Rating C0 | — | 458,000 N |
| Extended Dynamic Rating Ce | — | 0 N |
| Static Axial Rating C0A | — | 588,000 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.