Best Bearings Company
Bearing NA4909 2RS
Inner diameter:: 45 mm
Outer diameter: 52 mm
The size of the width: 68 mm
Weight:: 0.29 kg

Technical specifications

Designation : NA4909 2RS

Dimensions, mm : 45x52x68

Producer : ETERNO

Technical data from the manufacturers catalog :

Weight - 0.29 Kg

Dynamic load rating (C) - 31680 kN

Static load rating (C0) - 51760 kN

Outside width (C) - 23mm

Grease lubrication speed - 2800 rev/min