Cross-brand designation analysis
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You entered 749SR-742. This table explores the base group 749; it does not preserve or approve every requested suffix. Search your complete marking first →
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One base designation across loaded brands
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Dimensions differ
“749” across 3 loaded brands
The base designation is shared, but the loaded boundary dimensions do not agree. Use Custom Compare when you want to choose exact suffix variants yourself.
Technical comparison
Choose exact variants instead →Brand differences at a glance
| Parameter | SKF749 A/74282.55 × 150.089 × mm | TIMKEN749A / 74282.55 × 150.089 × 44.45 mm | KOYO749R/74285.026 × 150.089 × 46.672 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | 749 A/742 | 749A / 742 | 749R/742 |
| 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 | — | 745 | — |
| Bore diameterd | 82.55 mm | 82.55 mm | 85.026 mm |
| Outside diameterD | 150.089 mm | 150.089 mm | 150.089 mm |
| WidthB | — | 44.45 mm | 46.672 mm |
| Basic dynamic load ratingC | 351 kN | 377 kN | 330 kN |
| Basic static load ratingC0 | 405 kN | 417 kN | 368 kN |
| Fatigue load limitPu | 46.5 kN | — | 50.1 kN |
| Reference speednref | 3600 r/min | — | — |
| Limiting speednG | 4300 r/min | — | 2500 r/min |
| Mass≈m | 3.41 kg | 3.37 kg | 3.18 kg |
| Precision class | — | ABMA Class 2 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.80 | — |
| Y1 Factor | — | 1.84 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 1.01 | — |
| E Factor | — | 0.33 | — |
| Cg Factor | — | 0.0898 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 46.672 mm | — | — |
| Width, inner ring | 46.672 mm | — | — |
| Width, outer ring | 36.512 mm | — | — |
| Contact angle | 12.2 ° | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 95 mm | — | — |
| Diameter of shaft abutmentd b | min. 96.5 mm | — | — |
| Diameter of housing abutmentD a | max. 137.5 mm | — | — |
| Diameter of housing abutmentD b | min. 142 mm | — | — |
| Minimum width of space required in housing on large side faceC a | min. 8 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 | 0.33 | — | — |
| Calculation factorY | 1.8 | — | — |
| Calculation factorY 0 | 1 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 44.45 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 113.2 mm | — | — |
| Width of inner ringB | 46.672 mm | — | — |
| Width of outer ringC | 36.512 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 | 31.75 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | 745 | — | — |
| Logistics | |||
| Product net weight | 3.41 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100084950 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | 749A_742 | — |
| Inner Ring Part Number | — | 749A | — |
| Outer Ring Part Number | — | 742 | — |
| Drawing Number | — | A-9159 | — |
| Upc | — | 0053893652016 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.593 | — |
| 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 | 3.2500 in Bore | 5.9090 in OD | 1.7500 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2 | — |
| 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 | 12.6 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 150.089 mm |
| T | — | — | 44.450 mm |
| B | — | — | 46.672 mm |
| C | — | — | 36.512 mm |
| Overall Width | — | 49.972 mm | — |
| R(Min.) | — | — | 3.6 mm |
| Radial Rating | — | 97,600 N | — |
| R1(Min.) | — | — | 3.2 mm |
| Axial Rating | — | 54,400 N | — |
| Basic Load Ratings : Cr | — | — | 330 kN |
| Dynamic Rating C1 | — | 377,000 N | — |
| Basic Load Ratings : C0R | — | — | 368 kN |
| Dynamic Rating C90 | — | 97,600 N | — |
| Fatigue Load Limit : Cu | — | — | 50.1 kN |
| Dynamic Axial Rating Ca90 | — | 54,400 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 2500 min-1 |
| Dynamic Axial Rating Ca1 | — | 210,000 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 3400 min-1 |
| Static Radial Rating C0 | — | 417,000 N | — |
| Load Center Spread : A | — | — | 32.4 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant :E | — | — | 0.33 |
| Static Axial Rating C0A | — | 395,000 N | — |
| Axial Load Factors : Y1 | — | — | 1.84 |
| Axial Load Factors : Y0 | — | — | 1.01 |
| Da | — | — | 134.0 mm |
| Db | — | — | 142.0 mm |
| Ra(Max.) | — | — | 3.6 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 3.18 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.