Timken29521-3Tapered Roller Bearing Cup – 4.3307 in Outside Diameter, 0.7500 in Width, Class 3 Precision, Case-Hardened Steel

Product Description

What this part is:

Timken 29521-3 is an inch tapered roller bearing cup (outer race), Class 3 precision. Cup only, no cone. Unit Quantity: 1 Pc.

Decoding the designation:

29521 — the base cup number in the Timken 29500 inch series.

-3 — Timken precision Class 3. The same marking is written -3, *3 and #3.

Specifications:

Outside Diameter: 4.3307 in (110 mm). Overall Width: 0.7500 in (19.050 mm). Precision Class: Class 3. Series: 29500. Design Units: Imperial. Material: Case-hardened steel. Item Weight: 2 lb (0.9 kg). e Factor: 0.46. Y Factor: 1.31. Geometry Factor (Cg): 0.111. Harmonization Code: 8482.20.00.

Dimensions and mounting:

Maximum Housing Fillet Radius: 0.050 in (1.27 mm). Housing Backing Shoulder Diameter, Frontface (Da): 4.11 in (103.90 mm). Housing Backing Shoulder Diameter, Backface (Db): 3.90 in (99.06 mm).

Compatibility and replacement:

Mating cones: Timken 29580 and Timken 29582. The designation is also written 29521-3, 29521*3, 29521 #3 and 29521.

Frequently asked questions:

What are the dimensions of the Timken 29521-3 cup?

Outside diameter 4.3307 in (110 mm) and width 0.7500 in (19.050 mm).

What does the -3 in 29521-3 mean?

-3 is the Timken Class 3 precision marking; it is also written *3 and #3.

Which cones mate with the Timken 29521 cup?

Timken 29580 and Timken 29582.