Timken455W-3Tapered Roller Bearing Cone – 2.0000 in Bore, Wide Inner Ring, Class 3 Precision, Inch Series 450

Product Description

What this part is:

Timken 455W *3 inch tapered roller bearing cone, the inner ring carrying its tapered rollers and cage. Bore Diameter: 2.0000 in (50.8 mm). Overall Width: 1.1542 in (29.317 mm). Precision Class: Class 3. Cone only; the matching cups are the Timken 452 and 452A. Unit Quantity: 1 Pc.

Decoding the designation:

455 — the cone base number in the Timken 450 inch tapered series, fixing the bore and the roller path.

W — the wide cone execution, which lengthens the inner ring to 1.1542 in and spreads the roller contact over a longer raceway.

*3 — precision Class 3, written interchangeably as *3, -3 or #3. Class 3 holds tighter bore and running tolerances than standard, giving lower running vibration and closer shaft location.

Specifications:

Bearing Type: Tapered roller bearing cone. Series: 450. Base Number: 455W. Number Of Rows: 1. Rolling Elements: Tapered Roller. Bore Type: Straight. Bore Diameter: 2.0000 in (50.8 mm). Overall Width: 1.1542 in (29.317 mm). Material: Case carburized steel. Precision Class: Class 3. Dynamic Load Rating: 136,000 N (30,500 lbf) at 1 million revolutions. Static Load Rating: 166,000 N (37,200 lbf). Dynamic Radial Load Rating C90: 35,200 N (7,900 lbf). Dynamic Axial Rating Ca90: 20,200 N (4,540 lbf). K Factor: 1.74. Geometry Factor Cg: 0.0946. G1 Factor: 58.6. G2 Factor: 17.1. Harmonization Code: 8482.20.00. Unit Quantity: 1 Pc.

Dimensions and mounting:

Effective Center Location: -0.28 in (-7.1 mm), inside the cone backface. Max Shaft Fillet Radius: 0.030 in (0.8 mm) on the mating shaft. Shaft Backing Shoulder Diameter Frontface da: 2.32 in (59 mm). Shaft Backing Shoulder Diameter Backface db: 2.36 in (60 mm). Cage Location Relative To Backface Aa: 0.07 in (1.8 mm). Cage Location Relative To Frontface Ab: 0.08 in (2 mm).

Compatibility and replacement:

The 455W cone number is carried by SKF 455W, FAG K-455W, NSK 455W, NTN 4T-455W, Koyo 455W, Fersa 455W and BCA/Bower 455W on the same envelope. The Timken 456 shares this inner ring width and these load ratings on a 2.1250 in bore and is a related size. Mating cups: Timken 452 and 452A. Also listed as 455W, 455-W, 455W-3, 455-W *3, 455W#3 and 455 W 3.

Frequently asked questions:

What are the dimensions of the Timken 455W cone?

Bore Diameter: 2.0000 in (50.8 mm). Overall Width: 1.1542 in (29.317 mm).

What does *3 mean in 455W *3?

*3 is precision Class 3, with tighter bore and running tolerances than standard.

Which cups mate with the 455W cone?

The matching cups are the Timken 452 and 452A.