Inner diameter:: 50.8 mm
Outer diameter: 85 mm
The size of the width: 17.462 mm
Weight:: 0.374 kg

Technical specifications

Designation: 18790 / 18720

Producer: TIMKEN

Technical data from the manufacturers catalog :

Inner diameter(d): 50.8 mm

External diameter(D): 85 mm

Working width (T): 17.462 mm

Width (height) (B): 17.462 mm

Outer cage width (C): 13.495 mm

Internal chamfer radius (R): 3.5 mm

Outside chamfer radius (r): 1.5 mm

Cr (KN): 49.5

Cor (KN): 65

a: 17.3 мм

Width: 0.374 mm