Koyo14138A/14276Tapered Roller Bearing Cone and Cup, 1-3/8 x 2-23/32 in

Product Description

What this part is:

Koyo single-row tapered roller bearing set: the 14138A cone, which is the inner ring with its roller and cage assembly, and the mating 14276 cup, which is the outer race. Cone bore is 1-3/8 in and cup outside diameter is 2-23/32 in, an inch-series bearing on the 141xx envelope. Unit Quantity: 1 Pc set, one 14138A cone and one mating cup.

Decoding the designation:

14138A — the cone. The A is a design revision within the 14138 cone family, not a size change.

14276 — the matching cup.

Specifications:

Bore Diameter (cone): 1.3750 in (34.925 mm). Outside Diameter (cup): 2.7170 in (69.012 mm). Number Of Rows: 1. Rolling Elements: Tapered rollers. Series: 141xx inch tapered roller series. Cone Part Number: 14138A. Cup Part Number: 14276.

Dimensions and mounting:

Cone bore 1-3/8 in (1.3750 in). Cup outside diameter 2-23/32 in. Single-row tapered roller bearing: takes combined radial and axial load, with thrust in one direction.

Compatibility and replacement:

Timken 14138A + 14276 — same cone and cup numbers. The 14125A is a related cone with a 1.2500 in bore.

Frequently asked questions:

What does the set contain?

One 14138A cone and one mating 14276 cup.

What are the bore and outside diameter?

Bore Diameter (cone): 1-3/8 in. Outside Diameter (cup): 2-23/32 in.

What does the A in 14138A mean?

A design revision within the 14138 cone family, not a size change.