Cross-brand designation analysis
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Same-model Comparison
Explore products that share a base designation across loaded brands, with dimensional agreement and data gaps shown clearly.
Automatic candidate selection
One base designation across loaded brands
Exact designations rank first. Dimensions, suffixes and other technical differences remain visible so the result is not mistaken for an interchangeability declaration.
Dimensions differ
“M276449” 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 | SKFM 276449/410536.575 × 761.873 × mm | TIMKENM276449 / M276410536.575 × 761.873 × 146.05 mm | KOYOM276449D/410/410D536.575 × 761.873 × 558.8 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | M 276449/410 | M276449 / M276410 | M276449D/410/410D |
| Product family | Tapered roller bearings | TS - Tapered Single | Four-row tapered roller bearings |
| Detailed type | Single row tapered roller bearing | Tapered roller bearings | Rolling mill roll neck bearings |
| Series | — | M276400 | — |
| Bore diameterd | 536.575 mm | 536.575 mm | 536.575 mm |
| Outside diameterD | 761.873 mm | 761.873 mm | 761.873 mm |
| WidthB | — | 146.05 mm | 558.8 mm |
| Basic dynamic load ratingC | 3613 kN | 4010 kN | 12100 kN |
| Basic static load ratingC0 | 8000 kN | 9250 kN | 28800 kN |
| Fatigue load limitPu | 550 kN | — | 2380 kN |
| Reference speednref | 500 r/min | — | — |
| Limiting speednG | 670 r/min | — | — |
| Mass≈m | 208 kg | 210.12 kg | 820 kg |
| Precision class | — | ABMA Class 2 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.76 | — |
| Y1 Factor | — | 1.80 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 0.99 | — |
| E Factor | — | 0.33 | — |
| Cg Factor | — | 0.2839 | — |
| Classification | |||
| Official Category Path | — | — | Rolling mill roll neck bearings - Four-row tapered roller bearings |
| Official Classification 1 | — | — | Rolling mill roll neck bearings / Four-row tapered roller bearings |
| Dimensions | |||
| Width, total | 146.05 mm | — | — |
| Width, inner ring | 146.05 mm | — | — |
| Width, outer ring | 114.3 mm | — | — |
| Contact angle | 12.5 ° | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 582 mm | — | — |
| Diameter of shaft abutmentd b | min. 564 mm | — | — |
| Diameter of housing abutmentD a | max. 736 mm | — | — |
| Diameter of housing abutmentD b | min. 726 mm | — | — |
| Minimum width of space required in housing on large side faceC a | min. 15 mm | — | — |
| Minimum width of space required in housing on small side faceC b | min. 31.5 mm | — | — |
| Radius of shaft filletr a | max. 6.4 mm | — | — |
| Radius of housing filletr b | max. 6.4 mm | — | — |
| Engineering — Calculation data | |||
| Limiting valuee | 0.33 | — | — |
| Calculation factorY | 1.8 | — | — |
| Calculation factorY 0 | 1 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 146.05 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 641 mm | — | — |
| Width of inner ringB | 146.05 mm | — | — |
| Width of outer ringC | 114.3 mm | — | — |
| Chamfer dimension of inner ringr 1,2 | min. 6.4 mm | — | — |
| Chamfer dimension of outer ringr 3,4 | min. 6.4 mm | — | — |
| Distance side face to pressure pointa | 133.85 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | M 276400 | — | — |
| Logistics | |||
| Product net weight | 208.0 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100174572 | — |
| Official Class Key | — | — | 140-020-000 |
| World Assembly Part Number | — | M276449_M276410 | — |
| Inner Ring Part Number | — | M276449 | — |
| Outer Ring Part Number | — | M276410 | — |
| Drawing Number | — | E-27730 | — |
| Upc | — | 0053893581040 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.683 | — |
| 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 | Yes | — | — |
| Product Identity | |||
| Type Description | — | TS - Tapered Single | — |
| Construction | — | Single Row Tapered Roller Bearing Assembly | Imperial Series | 21.1250 in Bore | 29.9950 in OD | 5.7500 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 | — | — |
| Candidate for remanufacturing | Yes | — | — |
| Indicative carbon footprint for new product | 769.0 kg CO 2 e | — | — |
| Indicative carbon footprint for remanufactured product | 256.0 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 761.873 mm |
| T | — | — | 558.800 mm |
| W | — | — | 558.800 mm |
| R(Min.) | — | — | 6.4 mm |
| R1(Min.) | — | — | 3.2 mm |
| Overall Width | — | 164.850 mm | — |
| Basic Load Ratings : Cr | — | — | 12100 kN |
| Radial Rating | — | 1,040,000 N | — |
| Basic Load Ratings : C0R | — | — | 28800 kN |
| Axial Rating | — | 592,000 N | — |
| Fatigue Load Limit : Cu | — | — | 2380 kN |
| Dynamic Rating C1 | — | 4,010,000 N | — |
| Axial Load Factors : Y2 | — | — | 2.03 mm |
| Dynamic Rating C90 | — | 1,040,000 N | — |
| Axial Load Factors : Y3 | — | — | 3.02 |
| Dynamic Axial Rating Ca90 | — | 592,000 N | — |
| Axial Load Factors : Y0 | — | — | 1.98 |
| Dynamic Axial Rating Ca1 | — | 2,280,000 N | — |
| Constant E | — | — | 0.33 |
| Static Radial Rating C0 | — | 9,250,000 N | — |
| Da(Min.) | — | — | 578 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Da(Max.) | — | — | 700 mm |
| Static Axial Rating C0A | — | 8,960,000 N | — |
| S(Min.) | — | — | 9 mm |
| Ra(Max.) | — | — | 6.4 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 820 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.