Inner diameter:: 44.45 mm
Outer diameter: 84.138 mm
The size of the width: 30.162 mm
Weight:: 0.679 kg

Technical specifications

Designation: 3578A / 3520

Producer: TIMKEN

Technical data from the manufacturers catalog :

Inner diameter(d): 44.45 mm

External diameter(D): 84.138 mm

Working width (T): 30.162 mm

Width (height) (B): 30.886 mm

Outer cage width (C): 23.812 mm

Internal chamfer radius (R): 5.5 mm

Outside chamfer radius (r): 3.3 mm

Cr (KN): 94

Cor (KN): 117

a: 20.4 мм

Width: 0.679 mm