Timken74556Tapered Roller Bearing Cone – 5.5108 in Bore, 1.8750 in Width, K Factor 1.20

Product Description

What this part is:

Timken 74556 tapered roller bearing cone: the inner ring with its tapered roller set and cage, one half of a Timken TS single-row inch tapered roller bearing. Cone only. Bore 5.5108 in (139.974 mm), inner ring width 1.8750 in (47.625 mm). Unit Quantity: 1 Pc. Series 74500.

Decoding the designation:

74556 — cone number in Timken’s inch 74500 tapered roller series, fixing the 5.5108 in bore and the 1.8750 in inner ring width.

Specifications:

Bore Diameter: 5.5108 in (139.974 mm). Overall Width: 1.8750 in (47.625 mm). Item Weight: 12.85 kg (28.34 lb). Dynamic Load Rating (C1): 354,000 N (79,500 lbf). Static Load Rating: 614,000 N (138,000 lbf). Dynamic Radial Rating at 90 million revolutions (C90): 91,700 N. Dynamic Axial Rating at 90 million revolutions (Ca90): 76,500 N. K Factor: 1.20. G1 Factor: 362.9. G2 Factor: 68.5. Geometry Factor (Cg): 0.134. Rolling Elements: Tapered Roller. Number Of Rows: 1. Bore Type: Straight. Cage Type: Pressed. Bearing Material: case-carburized alloy steel. Country of Origin: United Kingdom.

Dimensions and mounting:

Maximum Shaft Fillet Radius: 0.140 in (3.600 mm). Shaft Backing Shoulder Diameter, frontface (da): 5.98 in (152 mm). Shaft Backing Shoulder Diameter, backface (db): 6.22 in (158 mm). Effective Centre Location: 0.09 in (2.3 mm), outside the cone backface. Cage Location relative to backface (Aa): 0.18 in. Cage Location relative to frontface (Ab): 0.10 in.

Compatibility and replacement:

Matching cup: Timken 74845. CAD model and data sheet: available from Timken.

Frequently asked questions:

What are the bore and width of the Timken 74556 cone?

Bore 5.5108 in (139.974 mm) and inner ring width 1.8750 in (47.625 mm).

What are the load ratings of the Timken 74556?

Dynamic load rating (C1) 354,000 N and static load rating 614,000 N; the C1 figure is per bearing.

Which cup mates with the Timken 74556 cone?

Timken 74845.