Cross-brand designation analysis
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You entered LM283649-904B2. This table explores the base group LM283649; 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
“LM283649” 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 | SKFLM 283649/610/HA1749.3 × 990.6 × mm | TIMKENLM283649H-904B6749.3 × 990.6 × 159.5 mm | KOYOLM283649D/610/610D749.3 × 990.6 × 605 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | LM 283649/610/HA1 | LM283649H-904B6 | LM283649D/610/610D |
| 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 | — | LM283600 | — |
| Bore diameterd | 749.3 mm | 749.3 mm | 749.3 mm |
| Outside diameterD | 990.6 mm | 990.6 mm | 990.6 mm |
| WidthB | — | 159.5 mm | 605 mm |
| Basic dynamic load ratingC | 4903 kN | 5130 kN | 16800 kN |
| Basic static load ratingC0 | 12000 kN | 13200 kN | 47700 kN |
| Fatigue load limitPu | 750 kN | — | 3560 kN |
| Reference speednref | 340 r/min | — | — |
| Limiting speednG | 450 r/min | — | — |
| Mass≈m | 335 kg | 321.9 kg | 1320 kg |
| Precision class | — | ABMA Class 4 | — |
| 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 | — | 0.3514 | — |
| 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 | 160.338 mm | — | — |
| Width, inner ring | 160.338 mm | — | — |
| Width, outer ring | 123.0 mm | — | — |
| Contact angle | 12.5 ° | — | — |
| Engineering — Abutment dimensions | |||
| Diameter of shaft abutmentd a | max. 793 mm | — | — |
| Diameter of shaft abutmentd b | min. 781 mm | — | — |
| Diameter of housing abutmentD a | max. 958 mm | — | — |
| Diameter of housing abutmentD b | min. 953 mm | — | — |
| Minimum width of space required in housing on large side faceC a | min. 22 mm | — | — |
| Minimum width of space required in housing on small side faceC b | min. 36.6 mm | — | — |
| Radius of shaft filletr a | max. 6 mm | — | — |
| Radius of housing filletr b | max. 6 mm | — | — |
| Engineering — Calculation data | |||
| Limiting valuee | 0.33 | — | — |
| Calculation factorY | 1.8 | — | — |
| Calculation factorY 0 | 1 | — | — |
| Engineering — Dimensions | |||
| Bearing width, totalT | 159.5 mm | — | — |
| Shoulder diameter of inner ringd 1 | ≈ 858.3 mm | — | — |
| Width of inner ringB | 160.338 mm | — | — |
| Width of outer ringC | 123 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 | 165 mm | — | — |
| Engineering — Engineering specifications | |||
| Dimension series | LM 283600 | — | — |
| Logistics | |||
| Product net weight | 335.0 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100171063 | — |
| Official Class Key | — | — | 140-020-000 |
| World Assembly Part Number | — | LM283649H_LM283610 | — |
| Inner Ring Part Number | — | LM283649H | — |
| Outer Ring Part Number | — | LM283610 | — |
| Drawing Number | — | E-43353 | — |
| Upc | — | 0053893660660 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:48.503 | — |
| 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 | 29.5000 in Bore | 39.0000 in OD | 6.2795 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 4 | — |
| 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 | 1241.0 kg CO 2 e | — | — |
| Indicative carbon footprint for remanufactured product | 412.0 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 990.600 mm |
| T | — | — | 605.000 mm |
| W | — | — | 605.000 mm |
| R(Min.) | — | — | 6.4 mm |
| R1(Min.) | — | — | 3.2 mm |
| Overall Width | — | 183.738 mm | — |
| Basic Load Ratings : Cr | — | — | 16800 kN |
| Radial Rating | — | 1,330,000 N | — |
| Basic Load Ratings : C0R | — | — | 47700 kN |
| Axial Rating | — | 757,000 N | — |
| Fatigue Load Limit : Cu | — | — | 3560 kN |
| Dynamic Rating C1 | — | 5,130,000 N | — |
| Axial Load Factors : Y2 | — | — | 2.12 mm |
| Dynamic Rating C90 | — | 1,330,000 N | — |
| Axial Load Factors : Y3 | — | — | 3.15 |
| Dynamic Axial Rating Ca90 | — | 757,000 N | — |
| Axial Load Factors : Y0 | — | — | 2.07 |
| Dynamic Axial Rating Ca1 | — | 2,920,000 N | — |
| Constant E | — | — | 0.32 |
| Static Radial Rating C0 | — | 13,200,000 N | — |
| Da(Min.) | — | — | 801 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Da(Max.) | — | — | 929 mm |
| Static Axial Rating C0A | — | 12,800,000 N | — |
| S(Min.) | — | — | 13 mm |
| Ra(Max.) | — | — | 6.4 mm |
| Rb(Max.) | — | — | 3.2 mm |
| Mass(Refer.) | — | — | 1320 kg |
Automatic matching is a search aid, not an interchangeability declaration. Confirm the full suffix, tolerances, internal design and application limits before substitution.