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| Parameter | SKF539/532 X53.975 × 107.95 × mm | TIMKEN539A / 53253.975 × 111.125 × 38.1 mm | KOYO539A/532X53.975 × 107.95 × 36.957 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | 539/532 X | 539A / 532 | 539A/532X |
| Product family | Tapered roller bearings | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Single row tapered roller bearing | Tapered roller bearings | Tapered roller bearings |
| Series | — | 535 | — |
| Bore diameterd | 53.975 mm | 53.975 mm | 53.975 mm |
| Outside diameterD | 107.95 mm | 111.125 mm | 107.95 mm |
| WidthB | — | 38.1 mm | 36.957 mm |
| Basic dynamic load ratingC | 183 kN | 204 kN | 172 kN |
| Basic static load ratingC0 | 190 kN | 206 kN | 172 kN |
| Fatigue load limitPu | 21.6 kN | — | 26.8 kN |
| Reference speednref | 5300 r/min | — | — |
| Limiting speednG | 6300 r/min | — | 3800 r/min |
| Mass≈m | 1.47 kg | 1.66 kg | 1.43 kg |
| Sealing | Without | — | — |
| Cage | Sheet metal | — | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.97 | — |
| Y1 Factor | — | 2.02 | — |
| Y2 Factor | — | -1.00 | — |
| Y0 Factor | — | 1.11 | — |
| E Factor | — | 0.30 | — |
| Cg Factor | — | 0.0938 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 36.957 mm | — | — |
| Width, inner ring | 36.957 mm | — | — |
| Width, outer ring | 28.575 mm | — | — |
| Contact angle | 11.2 ° | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 64 mm | — | — |
| Diameter of shaft abutmentd b | min. 67 mm | — | — |
| Diameter of housing abutmentD a | max. 96 mm | — | — |
| Diameter of housing abutmentD b | min. 97 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. 7.5 mm | — | — |
| Radius of shaft filletr a | max. 3.5 mm | — | — |
| Radius of housing filletr b | max. 3.3 mm | — | — |
| Engineering — Calculation data | |||
| SKF performance class | SKF Explorer | — | — |
| Limiting valuee | 0.3 | — | — |
| Calculation factorY | 2 | — | — |
| Calculation factorY 0 | 1.1 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 36.512 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 76.5 mm | — | — |
| Width of inner ringB | 36.957 mm | — | — |
| Width of outer ringC | 28.575 mm | — | — |
| Chamfer dimension of inner ringr 1,2 | min. 3.5 mm | — | — |
| Chamfer dimension of outer ringr 3,4 | min. 3.3 mm | — | — |
| Distance side face to pressure pointa | 23.799 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | 535 | — | — |
| Logistics | |||
| Product net weight | 1.47 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 100035223100032099 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | 539A / 532 | — |
| Inner Ring Part Number | — | 539A | — |
| Outer Ring Part Number | — | 532 | — |
| 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 | 5.4 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 107.950 mm |
| Overall Width | — | 38.757 mm | — |
| T | — | — | 36.512 mm |
| Radial Rating | — | 52,900 N | — |
| B | — | — | 36.957 mm |
| Axial Rating | — | 26,800 N | — |
| C | — | — | 28.575 mm |
| Dynamic Rating C1 | — | 204,000 N | — |
| R(Min.) | — | — | 5.6 mm |
| Dynamic Rating C90 | — | 52,900 N | — |
| R1(Min.) | — | — | 3.2 mm |
| Dynamic Axial Rating Ca90 | — | 26,800 N | — |
| Basic Load Ratings : Cr | — | — | 172 kN |
| Dynamic Axial Rating Ca1 | — | 104,000 N | — |
| Basic Load Ratings : C0R | — | — | 172 kN |
| Static Radial Rating C0 | — | 206,000 N | — |
| Fatigue Load Limit : Cu | — | — | 26.8 kN |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 3800 min-1 |
| Static Axial Rating C0A | — | 178,000 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 5100 min-1 |
| Load Center Spread : A | — | — | 23.9 mm |
| Constant :E | — | — | 0.30 |
| Axial Load Factors : Y1 | — | — | 2.03 |
| Axial Load Factors : Y0 | — | — | 1.11 |
| Da | — | — | 94.0 mm |
| Db | — | — | 100.0 mm |
| Ra(Max.) | — | — | 5.6 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 1.43 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.