Timken385A-3Tapered Roller Bearing Cone – 2.0000 in Bore, 0.8640 in Inner Ring Width, Class 3 Precision, Pressed Steel Cage, Mates With 382A And 382 Cups

Product Description

What this part is:

Timken 385A *3 inch tapered roller bearing cone. Cone only: the inner ring with its tapered roller set, as one non-separable assembly. Manufacturer: Timken. Manufacturer Part Number: 385A-3. Cone Part Number: 385A. Unit Quantity: 1 Pc. The matching single cups are the Timken 382A and 382.

Decoding the designation:

385 — the cone number in Timken’s 380 inch series.

A — a Timken design-variant letter; the 385A is a distinct part from the plain 385.

-3 — Precision Class 3, also written *3 or #3.

Specifications:

Bearing Type: Tapered Roller Bearing Cone. Base Number: 385. Series: 380. Number of Rows: 1. Rolling Elements: Tapered Rollers. Design Units: Inch. Bore Diameter: 2.0000 in (50.8 mm). Inner Ring Width: 0.8640 in (21.946 mm). Bore Type: Straight. Closure Type: Open. Bearing Material: Case-Carburized Steel. Precision Class: Class 3. Dynamic Radial Load Rating C1, per row, ISO method at 1 million revolutions: 24,200 lbf (108,000 N). Dynamic Radial Load Rating C90, per row, Timken method at 90 million revolutions: 6,280 lbf (28,000 N). Dynamic Axial Rating Ca90, per row: 3,810 lbf (16,900 N). Static Radial Load Rating C0: 24,100 lbf (107,000 N). K Factor: 1.65. G1 Factor: 42. G2 Factor: 15.7. Geometry Factor Cg: 0.0859. Item Weight: 5.95 lb (2.699 kg). Harmonization Code: 8482.20.00.

Dimensions and mounting:

Effective Center Location: −0.12 in (−3 mm). Maximum Shaft Fillet Radius: 0.09 in (2.3 mm). Shaft Backing Shoulder Diameter, frontface (da): 2.36 in (60 mm). Shaft Backing Shoulder Diameter, backface (db): 2.4 in (61 mm). Cage Location relative to the backface (Aa): 0.03 in (0.8 mm). Cage Location relative to the frontface (Ab): 0.11 in (2.8 mm).

Compatibility and replacement:

Matching single cups: Timken 382A and 382, giving the TS single-row assemblies 385A/382A and 385A/382. Matching double cups for two-row service: Timken 384ED and 384DC. The plain 385 is a separate Timken part number with its own published figures. Other forms of the number: 385A *3, 385 A 3, 385A #3, 385A.

Frequently asked questions:

What are the bore and width of the Timken 385A-3?

Bore Diameter: 2.0000 in (50.8 mm). Inner Ring Width: 0.8640 in (21.946 mm).

What precision class is the 385A-3?

Precision Class: Class 3.

Which cups mate with the 385A cone?

The single cups Timken 382A and 382, and the double cups Timken 384ED and 384DC.