Timken55197-3Tapered Roller Bearing Cone – 1.9675 in Bore, 1.0594 in Width, Class 3 Precision

Product Description

What this part is

Timken 55197 *3 single tapered roller bearing cone — the inner ring, roller and cage assembly of a TS-design tapered roller bearing. Bore (d): 1.9675 in (49.975 mm). Inner Ring Width (B): 1.0594 in (26.909 mm). Series: 551. Bearing Material: Carburized Steel. Design Units: Imperial.

Decoding the designation

55197 — the cone number, which fixes the bore, the cone width and the raceway angle.

*3 — Precision Class 3, a tighter tolerance than standard, giving closer shaft location and lower running vibration.

What these specs mean in practice

Dynamic Radial Load Rating (C1, 1M revs): 126,000 N (28,300 lbf). Dynamic Radial Load Rating (C90, 90M revs): 32,700 N (7,350 lbf). Dynamic Axial Rating (Ca90): 49,500 N (11,100 lbf). Static Radial Load Rating (C0): 119,000 N (26,700 lbf). K Factor: 0.66. A K factor of 0.66 marks a steep raceway angle, so this cone carries a high thrust share for its size. G1 Factor: 36.8. G2 Factor: 13.2. Geometry Factor (Cg): 0.109. Item weight: 2.708 kg (5.97 lb).

Mounting data

Effective Center Location: 0.28 in (7.1 mm). Max Shaft Fillet Radius: 0.080 in (2.0 mm). Shaft Backing Shoulder Diameter – Frontface (da): 2.51 in (63.9 mm). Shaft Backing Shoulder Diameter – Backface (db): 2.68 in (68 mm). Cage Location relative to Backface (Aa): 0.16 in (4.1 mm). Cage Location relative to Frontface (Ab): 0.16 in (4.1 mm).

Quantity and configuration

Cone only. The matching cups are the Timken 55434 and the Timken 55437. Unit Quantity: 1 Pc. Number Of Rows: 1. Rolling Elements: Tapered Roller.

Interchange guidance

The 55197 base number is carried across the trade: SKF 55197, FAG K-55197, NSK 55197, NTN 4T-55197, Koyo 55197, Fersa 55197, BCA/Bower 55197 and PEER 55197. Searchable forms of the designation: 55197, 55197-3, 55197 *3, 55197#3.