HepcoMotion W1X Guide Wheel with 19.55mm Outside Diameter

The guide wheels are precision ground, double row angular contact ball bearings which are pre-lubricated sealed units mounted on bushes
SAE 52100 steel, 60-62C Rockwell hardness

Track System - Hepco

An economical method of obtaining precision linear motion for all types of mechanical applications. A low friction accurate slide can be assembled quickly and inexpensively without the aid of costly machine tools. Guide wheels and track have an operating temperature range of -20 to +120°C.