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| Parameter | SKFLM 12749/710/VA98321.986 × 45.237 × mm | TIMKENLM12749 / LM1271021.987 × 45.237 × 15.494 mm | KOYOLM12749/1121.987 × 45.974 × 16.637 mm |
|---|---|---|---|
| Comparable specifications | |||
| Brand | SKF | TIMKEN | KOYO |
| Designation | LM 12749/710/VA983 | LM12749 / LM12710 | LM12749/11 |
| Product family | Tapered roller bearings | TS - Tapered Single | Single-row / Inch series |
| Detailed type | Special single row tapered roller bearing | Tapered roller bearings | Tapered roller bearings |
| Series | — | LM12700 | — |
| Bore diameterd | 21.986 mm | 21.987 mm | 21.987 mm |
| Outside diameterD | 45.237 mm | 45.237 mm | 45.974 mm |
| WidthB | — | 15.494 mm | 16.637 mm |
| Basic dynamic load ratingC | 29.7 kN | 38.6 kN | 37.5 kN |
| Basic static load ratingC0 | 31.5 kN | 35.3 kN | 34.6 kN |
| Fatigue load limitPu | — | — | 4.85 kN |
| Reference speednref | 11000 r/min | — | — |
| Limiting speednG | 15000 r/min | — | 8900 r/min |
| Mass≈m | 0.12 kg | 0.12 kg | 0.121 kg |
| Precision class | — | ABMA Class 2 | — |
| Sealing | Without | Open | — |
| Cage | Sheet metal | Steel cage | — |
| Lubricant | None | — | — |
| Calculation Factors | |||
| K Factor | — | 1.91 | — |
| Y1 Factor | — | 1.96 | — |
| Y2 Factor | — | 0.00 | — |
| Y0 Factor | — | 1.08 | — |
| E Factor | — | 0.31 | — |
| Cg Factor | — | 0.0480 | — |
| Classification | |||
| Official Category Path | — | — | Tapered roller bearings - Single-row - Inch series |
| Official Classification 1 | — | — | Tapered roller bearings / Single-row / Inch series |
| Dimensions | |||
| Width, total | 16.637 mm | — | — |
| Width, inner ring | 16.637 mm | — | — |
| Width, outer ring | 12.065 mm | — | — |
| Contact angle | 11.5 ° | — | — |
| Logistics | |||
| Product net weight | 0.12 kg | — | — |
| eClass code | 23-05-09-10 | — | — |
| UNSPSC code | 31171516 | — | — |
| Manufacturer Identity | |||
| Material Number | — | 000000000100083991 | — |
| Official Class Key | — | — | 050-010-020 |
| World Assembly Part Number | — | LM12749_LM12710 | — |
| Inner Ring Part Number | — | LM12749 | — |
| Outer Ring Part Number | — | LM12710 | — |
| Drawing Number | — | A-36846 | — |
| Upc | — | 0053893653808 | — |
| Official Source System | — | CORE BP - DS DF | — |
| Official Last Run | — | 2026-08-23T20:02:47.16 | — |
| Product identity | |||
| Official product category | Tapered roller bearings | — | — |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | — | — |
| Available from SKF | Yes | — | — |
| Remanufacturable | No | — | — |
| Product Identity | |||
| Type Description | — | TS - Tapered Single | — |
| Construction | — | Single Row Tapered Roller Bearing Assembly | Imperial Series | 0.8656 in Bore | 1.7810 in OD | 0.6100 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 | 0.44 kg CO 2 e | — | — |
| Technical Data | |||
| d | — | — | 45.974 mm |
| T | — | — | 15.494 mm |
| B | — | — | 16.637 mm |
| C | — | — | 12.065 mm |
| Overall Width | — | 17.937 mm | — |
| R(Min.) | — | — | 1.2 mm |
| Radial Rating | — | 10,000 N | — |
| R1(Min.) | — | — | 1.2 mm |
| Axial Rating | — | 5,250 N | — |
| Basic Load Ratings : Cr | — | — | 37.5 kN |
| Dynamic Rating C1 | — | 38,600 N | — |
| Basic Load Ratings : C0R | — | — | 34.6 kN |
| Dynamic Rating C90 | — | 10,000 N | — |
| Fatigue Load Limit : Cu | — | — | 4.85 kN |
| Dynamic Axial Rating Ca90 | — | 5,250 N | — |
| Limiting Speeds(Grease Lub.) | — | — | 8900 min-1 |
| Dynamic Axial Rating Ca1 | — | 20,200 N | — |
| Limiting Speeds(Oil Lub.) | — | — | 12000 min-1 |
| Static Radial Rating C0 | — | 35,300 N | — |
| Load Center Spread : A | — | — | 10.0 mm |
| Extended Dynamic Rating Ce | — | 0 N | — |
| Constant :E | — | — | 0.31 |
| Static Axial Rating C0A | — | 31,500 N | — |
| Axial Load Factors : Y1 | — | — | 1.96 |
| Axial Load Factors : Y0 | — | — | 1.08 |
| Da | — | — | 40.0 mm |
| Db | — | — | 42.5 mm |
| Ra(Max.) | — | — | 1.2 mm |
| Rb(Max.) | — | — | 1.2 mm |
| Mass(Refer.) | — | — | 0.121 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.