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| Parameter | SKF31594/31520/VA98334.925 × 76.2 × mm | TIMKEN31594 / 3152034.925 × 76.2 × 29.37 mm | KOYO31594/2034.925 × 76.2 × 28.575 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | 31594/31520/VA983 | 31594 / 31520 | 31594/20 |
| Product family | Tapered roller bearings | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Special single row tapered roller bearing | Tapered roller bearings | Tapered roller bearings |
| Series | — | 31500 | — |
| Bore diameterd | 34.925 mm | 34.925 mm | 34.925 mm |
| Outside diameterD | 76.2 mm | 76.2 mm | 76.2 mm |
| WidthB | — | 29.37 mm | 28.575 mm |
| Basic dynamic load ratingC | 84 kN | 94.7 kN | 101 kN |
| Basic static load ratingC0 | 93 kN | 107 kN | 97.4 kN |
| Fatigue load limitPu | — | — | 14.4 kN |
| Reference speednref | 6700 r/min | — | — |
| Limiting speednG | 9000 r/min | — | 5400 r/min |
| Mass≈m | 0.632 kg | 0.63 kg | 0.62 kg |
| Precision class | — | ABMA Class 7 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.45 | — |
| Y1 Factor | — | 1.49 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 0.82 | — |
| E Factor | — | 0.40 | — |
| Cg Factor | — | 0.0773 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 29.37 mm | — | — |
| Width, inner ring | 28.575 mm | — | — |
| Width, outer ring | 23.812 mm | — | — |
| Contact angle | 15.0 ° | — | — |
| Logistics | |||
| Product net weight | 0.632 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100142488 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | 31594_31520 | — |
| Inner Ring Part Number | — | 31594 | — |
| Outer Ring Part Number | — | 31520 | — |
| Drawing Number | — | A-11770 | — |
| Upc | — | 0053893782232 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:46.307 | — |
| Product identity | |||
| Official product category | Tapered roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Type Description | — | TS - Tapered Single | — |
| Construction | — | Single Row Tapered Roller Bearing Assembly | Imperial Series | 1.3750 in Bore | 3.0000 in OD | 1.1563 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 7 | — |
| 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 | 2.3 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 76.200 mm |
| T | — | — | 29.370 mm |
| B | — | — | 28.575 mm |
| C | — | — | 23.812 mm |
| Overall Width | — | 31.575 mm | — |
| R(Min.) | — | — | 1.6 mm |
| Radial Rating | — | 24,600 N | — |
| R1(Min.) | — | — | 3.2 mm |
| Axial Rating | — | 16,900 N | — |
| Basic Load Ratings : Cr | — | — | 101 kN |
| Dynamic Rating C1 | — | 94,700 N | — |
| Basic Load Ratings : C0R | — | — | 97.4 kN |
| Dynamic Rating C90 | — | 24,600 N | — |
| Fatigue Load Limit : Cu | — | — | 14.4 kN |
| Dynamic Axial Rating Ca90 | — | 16,900 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 5400 min-1 |
| Dynamic Axial Rating Ca1 | — | 65,200 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 7200 min-1 |
| Static Radial Rating C0 | — | 107,000 N | — |
| Load Center Spread : A | — | — | 21.6 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant :E | — | — | 0.40 |
| Static Axial Rating C0A | — | 126,000 N | — |
| Axial Load Factors : Y1 | — | — | 1.49 |
| Axial Load Factors : Y0 | — | — | 0.82 |
| Da | — | — | 64.0 mm |
| Db | — | — | 72.0 mm |
| Ra(Max.) | — | — | 1.6 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 0.62 kg |
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.