Cross-brand designation analysis
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Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
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One base designation across loaded brands
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Dimensions differ
“HM803146” 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 | SKFHM 803146/11041.275 × 88.9 × mm | TIMKENHM803146 / HM80311041.275 × 88.9 × 30.162 mm | KOYOHM803146/1041.275 × 88.9 × 29.37 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | HM 803146/110 | HM803146 / HM803110 | HM803146/10 |
| 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 | — | HM803100 | — |
| Bore diameterd | 41.275 mm | 41.275 mm | 41.275 mm |
| Outside diameterD | 88.9 mm | 88.9 mm | 88.9 mm |
| WidthB | — | 30.162 mm | 29.37 mm |
| Basic dynamic load ratingC | 116 kN | 114 kN | 124 kN |
| Basic static load ratingC0 | 127 kN | 144 kN | 125 kN |
| Fatigue load limitPu | 14.6 kN | — | 18.5 kN |
| Reference speednref | 6000 r/min | — | — |
| Limiting speednG | 7500 r/min | — | 4600 r/min |
| Mass≈m | 0.893 kg | 0.9 kg | 0.892 kg |
| Precision class | — | ABMA Class 7 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.07 | — |
| Y1 Factor | — | 1.10 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 0.60 | — |
| E Factor | — | 0.55 | — |
| Cg Factor | — | 0.0974 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 30.162 mm | — | — |
| Width, inner ring | 29.37 mm | — | — |
| Width, outer ring | 23.02 mm | — | — |
| Contact angle | 20.0 ° | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 53 mm | — | — |
| Diameter of shaft abutmentd b | min. 54 mm | — | — |
| Diameter of housing abutmentD a | max. 77.5 mm | — | — |
| Diameter of housing abutmentD b | min. 84 mm | — | — |
| Minimum width of space required in housing on large side faceC a | min. 4 mm | — | — |
| Minimum width of space required in housing on small side faceC b | min. 7 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 | 0.54 | — | — |
| Calculation factorY | 1.1 | — | — |
| Calculation factorY 0 | 0.6 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 30.162 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 69 mm | — | — |
| Width of inner ringB | 29.37 mm | — | — |
| Width of outer ringC | 23.02 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 | 25.497 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | HM 803100 | — | — |
| Logistics | |||
| Product net weight | 0.893 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100100408 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | HM803146_HM803110 | — |
| Inner Ring Part Number | — | HM803146 | — |
| Outer Ring Part Number | — | HM803110 | — |
| Drawing Number | — | A-20587 | — |
| Upc | — | 0053893662725 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.077 | — |
| 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 | 1.6250 in Bore | 3.5000 in OD | 1.1875 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 | 3.3 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 88.900 mm |
| T | — | — | 30.162 mm |
| B | — | — | 29.370 mm |
| C | — | — | 23.020 mm |
| Overall Width | — | 33.170 mm | — |
| R(Min.) | — | — | 3.6 mm |
| Radial Rating | — | 29,500 N | — |
| R1(Min.) | — | — | 3.2 mm |
| Axial Rating | — | 27,600 N | — |
| Basic Load Ratings : Cr | — | — | 124 kN |
| Dynamic Rating C1 | — | 114,000 N | — |
| Basic Load Ratings : C0R | — | — | 125 kN |
| Dynamic Rating C90 | — | 29,500 N | — |
| Fatigue Load Limit : Cu | — | — | 18.5 kN |
| Dynamic Axial Rating Ca90 | — | 27,600 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 4600 min-1 |
| Dynamic Axial Rating Ca1 | — | 106,000 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 6100 min-1 |
| Static Radial Rating C0 | — | 144,000 N | — |
| Load Center Spread : A | — | — | 26.1 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant :E | — | — | 0.55 |
| Static Axial Rating C0A | — | 229,000 N | — |
| Axial Load Factors : Y1 | — | — | 1.10 |
| Axial Load Factors : Y0 | — | — | 0.60 |
| Da | — | — | 74.0 mm |
| Db | — | — | 85.0 mm |
| Ra(Max.) | — | — | 3.6 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 0.892 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.