Manufacturer designation:

6409 N

Designation due to standards:

6409N DIN 625-1 ISO15:2011;
50409 GOST 8338-75

Design:

The ball bearing consists of two rings (internal and external) and rolling elements (balls), connected with a cage - separator.

Features:

bearing type - open (without any seals on both sides);
snap ring groove on surfacce of outer bearings ring.