Bower3476/3426Tapered Roller Bearing Cone and Cup Set — 1-1/4 in Bore, 3.123 in OD, 1.1563 in Width, Single Row

Product Description

What this part is:

Bower 3476/3426 is a single-row inch tapered roller bearing set: a 3476 cone (inner ring, rollers and cage) and a 3426 cup (outer ring). Bore Diameter: 1.2500 in (31.750 mm). Outside Diameter: 3.1230 in (79.324 mm). Total Width: 1.1563 in (29.370 mm). The set carries combined radial and one-direction thrust load and is normally mounted opposed to a second bearing.

Decoding the designation:

3476 — ABMA cone number, 1-1/4 in bore, in the 3400 cone family that shares the 3426 cup.

3426 — ABMA cup number, 3.1230 in OD, 0.9375 in cup width.

3476/3426 — cone/cup pair forming one complete single-row bearing.

What these specs mean in practice:

Interchange data for the same ABMA numbers (Timken catalogue): Dynamic Load Rating: 105,000 N (C1, 1 million revolutions). Static Load Rating: 119,000 N. Dynamic Radial Rating C90: 27,100 N. Dynamic Axial Rating Ca90: 17,000 N. K Factor: 1.6. e Factor: 0.37. Y Factor: 1.64.

Mounting data:

Cone Width: 1.1721 in (29.771 mm). Cup Width: 0.9375 in (23.813 mm). Max Shaft Fillet Radius: 0.050 in (1.3 mm). Max Housing Fillet Radius: 0.130 in (3.30 mm). Shaft Backing Shoulder Diameter: 1.61 in (41 mm) front face, 1.69 in (43 mm) back face. Housing Backing Shoulder Diameter: 2.94 in (74.68 mm) front face, 2.64 in (67.06 mm) back face. Effective Center Location: -0.34 in (-8.6 mm), inside the cone backface.

Quantity and configuration:

Unit Quantity: 2 Pcs — one 3476 cone and one 3426 cup. Rolling Elements: Tapered Roller. Number Of Rows: 1. Closure Type: Open. Bore Type: Straight.

Interchange guidance:

Cross-Reference: Timken 3476/3426. The 3426 cup also mates the 3479 cone (1-7/16 in bore) and other 3400-family cones of the same cup series.