Timken vs. SKF Bearings: The Difference Between Tier-1 Bearing Brands
When sourcing a replacement bearing, you will often find both Timken and SKF options for
Availability:
80 in stock
Single flanged tapered roller bearing cup, 2.8593 in OD, 0.6875 in width, 3.0741 in flange OD. Case-carburized steel, standard Class 2 tolerance.
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| MFR / Brand | Timken |
|---|---|
| MPN | 41286B |
| Model | 41286 B |
| Bearing Type | Tapered Roller Bearing Cup (Single Flanged, TSF) |
| OD | 2.8593 in (72.626 mm) |
| Condition | New |
|---|---|
| Series | 41000 |
| Base Number | 41286 |
| Industry Terms | Flanged taper cup, TSF cup, tapered roller bearing outer race, taper bearing race, flange cup |
| Common Misspellings | Timkin 41286B, 41286-b cup, Timken 41268B, 41286B flanged cop |
| Overall Width | 0.6875 in (17.463 mm) |
| Flange Outer Diameter | 3.0741 in (78.082 mm) |
| Cup Flange Width | 0.2187 in (5.555 mm) |
| Mpn Variants | 41286B, 41286-B, 41286 B, 41286B USA |
| Manufacturer Status | Active catalogue part |
| Compatible With Replaces | Mating cones: Timken 41125 (1.1250 in bore), 41126, 41106 (1.0625 in bore), 41100 (1.0000 in bore) |
| Precision Class | Timken Class 2 (ABEC-1 equivalent standard inch tolerance) |
| Additional Attributes | TSF flanged cup execution. Assembly figures for the 41125/41286B pairing, for reference only and not a rating of this cup: e 0.6, Y 1, K 0.97, effective load centre -0.16 in. |
| Material | Case-Carburized Steel |
| Rolling Elements | Not applicable (cup only; rollers are carried on the mating cone) |
| Number Of Rows | 1 |
| Harmonization Code | 8482.20.00 |
| Cup Part Number | 41286B |
| Design Units | Imperial |
| Bearing Class | Class 2 |
| Bearing Material | Case-Carburized Steel |
| Cup Width | 0.6875 in (17.463 mm) |
| Cup Backface To Clear Radius | 0.06 in (1.5 mm) |
| Cup Frontface Backing Diameter | 2.80 in (71.10 mm) |
| Cross Reference 1 | 41286 (related size, unflanged cup, same raceway geometry) |
|---|---|
| Cross Reference 2 | Bower / BCA 41286B |
| Cross Reference 3 | 41125/41286B (complete TSF assembly, cone and flanged cup) |
| Cross Reference 4 | 41106/41286B, 41100/41286B, 41126/41286B (assemblies using this cup) |
A Timken 41286B single flanged tapered roller bearing cup — the outer race of a TSF (tapered single with flange) inch-series tapered roller bearing. Cup only. The matching cone is the Timken 41125.
41286 is the 41000-series cup number, and the trailing B marks the flanged execution. The raceway outside diameter of 2.8593 in and the cup width of 0.6875 in are shared with the unflanged 41286; the B adds an integral 3.0741 in flange, 0.2187 in thick, at the cup backface. Both executions accept the same cones.
The flange seats against the housing face, so a through-bored housing locates the cup axially without a machined shoulder or a retaining ring, and the flange face provides a square reference for aligning a seal. Cup outside diameter is held to +0.001 in / 0 and cup width to +0.002 in / –0.010 in at Class 2 tolerance.
Cup frontface backing diameter is 2.80 in (71.10 mm) and the cup backface to-clear fillet radius is 0.06 in (1.5 mm). Run against a 41125 cone the pairing carries an ISO e factor of 0.6, a Y factor of 1, a Timken K factor of 0.97 and an effective load centre 0.16 in (4.1 mm) inside the cone backface, with a cone frontface backing diameter of 1.44 in and a cone backface backing diameter of 1.89 in.
One flanged cup per unit. Tapered single bearings in this series are normally mounted in opposing pairs on a shaft, one cone and one cup at each end.
The 41286B cup pairs with the 41125, 41126, 41106 and 41100 cones of the same series, each giving a different bore. The unflanged 41286 is a related size with identical raceway geometry and a plain outside diameter in place of the locating flange.
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