Timken3760Tapered Roller Bearing Cone – 1.7500 in Bore, 1.4430 in Width, K Factor 1.73

Product Description

What this part is:

Timken 3760 tapered roller bearing cone. This is the inner ring with its tapered roller set and cage, the rotating half of a Timken TS single-row inch tapered roller bearing. Bore Diameter: 1.7500 in (1-3/4 in, 44.450 mm). Overall Width: 1.4430 in (36.652 mm) inner ring width. Item Weight: 2.26 kg (4.98 lb). Dynamic Load Rating: 122,000 N (27,500 lbf) at C1. Static Load Rating: 153,000 N (34,300 lbf). Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Cage Type: Pressed. Bearing Material: case-carburized alloy steel. Design Units: Imperial. Base Number: 3760.

Decoding the designation:

3760 — a cone number in Timken’s inch 3700 tapered roller series, fixing the 1.7500 in bore and the 1.4430 in inner ring width.

No precision suffix is present on this part. Precision Class: Not specified.

What these specs mean in practice:

K Factor: 1.73. The K factor is the ratio of radial to thrust capability in the mounted bearing. At 1.73 the taper is shallow and the bearing is weighted toward radial load, with thrust taken as the secondary duty — the usual choice for a shaft carried on an opposed pair where the thrust is moderate and reversing.

Dynamic Load Rating: 122,000 N (C1, at 1 million revolutions, ISO method). Dynamic Radial Load Rating at 90 million revolutions (C90): 31,700 N. Dynamic Axial Rating at 90 million revolutions (Ca90): 18,300 N. Static Load Rating: 153,000 N. The static figure sits above the dynamic figure on this cone, which is what Timken publishes for it.

G1 Factor: 49.9. G2 Factor: 14.5. Geometry Factor (Cg): 0.0903, the geometry constant for the lubrication life adjustment factor a3l.

Mounting data:

Maximum Shaft Fillet Radius: 0.140 in (3.600 mm) — the largest fillet the shaft shoulder may carry and still be cleared by the cone corner. Shaft Backing Shoulder Diameter, frontface (da): 2.05 in (52 mm). Shaft Backing Shoulder Diameter, backface (db): 2.28 in (58 mm). Effective Centre Location: -0.57 in (-14.5 mm); the negative value places the effective load centre inside the cone backface, which is what sets the true bearing spread when the mounting span is calculated. Cage Location relative to backface (Aa): 0.31 in. Cage Location relative to frontface (Ab): 0.06 in.

Quantity and configuration:

Unit Quantity: 1 Pc. Cone only — inner ring, rollers and cage. The matching cup is the Timken 3720.

Interchange guidance:

3760 is an inch tapered roller cone number on the common industry dimensional standard, so a 3760 from another inch-series maker carries the same bore, width and raceway angle and is a direct substitution. Cross-references: Koyo 3760, NTN 4T-3760, NSK 3760, Bower / BCA 3760, Fersa 3760, SKF BR3760.