Inner diameter:: 57.15 mm
Outer diameter: 112.712 mm
The size of the width: 30.162 mm
Weight:: 1.4 kg

Technical specifications

Designation: 3979 / 3920

Producer: TIMKEN

Technical data from the manufacturers catalog :

Inner diameter(d): 57.15 mm

External diameter(D): 112.712 mm

Working width (T): 30.162 mm

Width (height) (B): 30.048 mm

Outer cage width (C): 23.812 mm

Internal chamfer radius (R): 3.5 mm

Outside chamfer radius (r): 3.3 mm

Cr (KN): 119

Cor (KN): 174

a: 25.6 мм

Width: 1.4 mm