U shape micro bearing or wheel for xy linear guide rail system
That U-shape micro bearing or wheel used for laser cutting machine linear guide, or used for computerized embroidery machine
The common models such as 51797, SG66 (including flat surface and concave 2 types)
It based on bearing steel material, sometimes people call it as "sliding roller bearing"
Now it's used for outer sliding xy linear guide rail system more and more
High quality sliding roller bearing have flat U shape surface, uniform chamfer and smooth inner holes for high accuracy
U shape roller bearing used for XY linear guide rail system of laser cutting machine
Commonly one sliding block with 4 bearings, and 2pcs bearings in one side
Laser cutting machine sliding block installed with 4pcs roller bearings & 2pcs eccentric nuts
The 51797 U shape steel roller bearing packed in the bags,
if the bearing worn out in your laser cutting machine or embroidery machine, you can replace it by yourself.