Timken41125/41286Tapered Roller Bearing Cone and Cup – 1-1/8 in Bore, 2.8593 in OD, Single Row TS Set

Product Description

What this part is

Timken 41125/41286 single-row TS tapered roller bearing, supplied as the cone and its matching cup. Part Number: 41125/41286. Cone Part Number: 41125. Cup Part Number: 41286. Series: 41000. Bearing type: Tapered roller bearing, cone and cup. Bore / Shaft Size: 1-1/8 in (28.575 mm). Outside Diameter: 2.8593 in (72.626 mm). Cone Width: 0.9550 in (24.257 mm). Cup Width: 0.6875 in (17.463 mm). Design Units: Imperial. Item weight: 3.4 lb (1.57 kg) for the pair. Country of Origin: United States.

Decoding the designation

41125 — the cone, meaning the inner ring with its rollers and cage.

41286 — the cup, the outer race the rollers run against.

41125/41286 — Timken names this assembly by its cone and cup pair.

What these specs mean in practice

Cone and cup, the two halves of one single-row TS tapered roller bearing. The taper carries radial load and thrust in one direction, which is why TS bearings are mounted in opposing pairs on a shaft. Dynamic Radial Load Rating, 1M revs (C1): 18,600 lbf (82,600 N). Dynamic Radial Load Rating, 90M revs (C90): 4,820 lbf (21,400 N). Dynamic Axial Rating, 90M revs (Ca90): 4,960 lbf (22,100 N). Static Radial Load Rating (C0): 14,400 lbf (64,100 N). C1 is the ISO life basis and C90 the Timken 90-million-revolution basis. K Factor: 0.97. e Factor: 0.6. Y Factor: 1. G1 Factor: 13. G2 Factor: 5.83. Geometry Factor (Cg): 0.0686. Effective Center Location: −0.16 in (−4.1 mm), the load centre sitting inside the cone backface. Bearing Material: Case-hardened steel.

Mounting data

Maximum Shaft Fillet Radius: 0.19 in (4.8 mm). Maximum Housing Fillet Radius: 0.06 in (1.52 mm). Shaft Backing Shoulder Diameter, Frontface (da): 1.44 in (36.5 mm). Shaft Backing Shoulder Diameter, Backface (db): 1.89 in (48 mm). Housing Backing Shoulder Diameter, Frontface (Da): 2.72 in (68.10 mm). Housing Backing Shoulder Diameter, Backface (Db): 2.40 in (60.96 mm). Cage Location relative to Backface (Aa): 0.09 in (2.3 mm). Cage Location relative to Frontface (Ab): 0.12 in (3 mm).

Quantity and configuration

Unit Quantity: 1 Pc. Arrangement / Configuration: single-row TS, one cone and one cup.

Interchange guidance

Compatible With / Replaces: Timken 41125 cone, Timken 41286 cup. The flanged cup for the same cone is the Timken 41286-B, a separate execution with a 3.0741 in flange outside diameter. MPN Variants: 41125/41286, 41125-41286, 41125 41286. Harmonization Code: 8482.2.