Timken28315B-3Flanged Tapered Roller Bearing Cup – 3.1496″ Outside Diameter, 0.6250″ Width, 3.3015″ Flange Outer Diameter, Class 3 Precision

Product Description

What this part is:

Timken 28315-B, an inch-series single-row flanged tapered roller bearing cup, Class 3 precision (28315B-3). Cup only: one flanged outer ring. Unit Quantity: 1 Pc.

Decoding the designation:

28315 — the cup number within Timken’s 28300 inch tapered roller series.

B — flanged outer ring.

*3 — Precision Class: Class 3. A tighter running tolerance than standard. The same marking appears as 28315B-3, 28315-B *3 and 28315B#3.

Specifications:

Outside Diameter: 3.1496 in. Overall Width: 0.6250 in. Flange Outer Diameter: 3.3015 in. Flange Width: 0.1563 in. Bearing Width to Flange: 0.1870 in. Item Weight: 0.50 kg (1.20 lb). Series: 28300. Base Number: 28315. Rolling Elements: Tapered Roller. Number Of Rows: 1. Precision Class: Class 3. e Factor: 0.4. K Factor: 1.45. Y Factor: 1.49. Geometry Factor (Cg): 0.0709.

Dimensions and mounting:

Maximum Housing Fillet Radius: 0.06 in. Housing Backing Shoulder Diameter, Frontface (Da): 2.91 in. The flange seats on the housing face.

Compatibility and replacement:

28315-B is the industry designation for this envelope. Cross-references: SKF 28315 B, Koyo 28315B, NTN 4T-28315B, Fersa 28315B, BCA/Bower 28315B, PEER 28315B. The plain 28315 is the unflanged cup of the same series and a separate designation.

Frequently asked questions:

What are the size and weight of the Timken 28315-B cup?

Outside diameter 3.1496 in, overall width 0.6250 in, flange outer diameter 3.3015 in, weight 0.50 kg (1.20 lb).

What does the B suffix mean?

B marks a flanged outer ring. The plain 28315 is the unflanged cup of the same series.

What does the *3 marking mean?

*3 marks Class 3 precision. The same part is written 28315B-3, 28315-B *3 and 28315B#3.