Manufacturer designation:

CSK20-M-2RS-C5 

Interchanges:

CSK20-2RS (Stieber);
BB20-2K (Tsubaki);
FK204 (GMN);
ZZ204 (Ringspamm);
CKK20 (C&M). 

Design:

Self-contained ball bearing units (CSK Range)

Application:

These bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

Features:

Economical units for light applications.
Closed on both sides with metal-plastic seals of the RS type.