Timken33262-3Tapered Roller Bearing Cone – 2.6250 in Bore, 1.1875 in Width, Class 3 Precision, Case-Carburized Steel

Product Description

What this part is:

Timken 33262-3 inch tapered roller bearing cone — the inner ring complete with its tapered roller set and cage. Bore Diameter: 2.6250 in (66.675 mm). Overall Width: 1.1875 in (30.163 mm), the inner ring width B. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Bearing Material: Case-carburized steel. Item Weight: 3.528 kg (7.78 lb). Design units are imperial. Cone only. The matching cup is the Timken 33462.

Decoding the designation:

33262 — the cone number in Timken’s 33200 inch series. Bore 2.6250 in.

-3, also written *3 or #3 — Precision Class: Class 3. A tighter tolerance than standard, giving lower running vibration and closer shaft location.

What these specs mean in practice:

Dynamic Load Rating: 138,000 N (31,100 lbf) at one million revolutions. Static Load Rating: 197,000 N (44,300 lbf). Timken’s 90-million-revolution figures are C90 35,900 N (8,060 lbf) radial and Ca90 26,800 N (6,020 lbf) thrust.

K Factor: 1.34. The K factor is the ratio between the bearing’s radial and thrust capability, and a 1.34 is a shallow taper that carries a comparatively large share of its rating as thrust.

G1 Factor: 84.2. G2 Factor: 25.9. Geometry Factor (Cg): 0.116.

Mounting data:

Effective Center Location: -0.11 in (-2.8 mm), inside the cone backface. Max Shaft Fillet Radius: 0.14 in (3.600 mm), the largest shaft corner radius the cone bore chamfer will clear. Shaft Backing Shoulder Diameter, frontface (da): 2.95 in (75 mm). Shaft Backing Shoulder Diameter, backface (db): 3.19 in (81 mm). Cage Location relative to backface (Aa): 0.07 in (1.8 mm). Cage Location relative to frontface (Ab): 0.07 in (1.8 mm).

Quantity and configuration:

Unit Quantity: 1 Pc — one 33262-3 cone. The mating cup is the Timken 33462.

Interchange guidance:

33262 is an industry-standard inch cone number used across the general taper makers, so a 33262 from SKF, FAG, NSK, NTN, Koyo, Fersa, BCA or PEER interchanges on boundary dimensions and rating class. Those are standard-tolerance cones: the -3 here is a Class 3 execution, which is a tighter grade than the plain number.