What are the differences between a Full-Ball LM Guide and a Caged Ball LM Guide?
In a Caged Ball LM Guide, the ball cage eliminates friction between the balls and keeps them evenly spaced as they circulate.
Furthermore, grease accumulates in the spaces between the ball circulation area and the ball cage, forming a constant oil film on the ball surface that is unlikely to break down.
A Full-Ball LM Guide, when paired with appropriate options, can be used in normal environments as well as in vacuum and high-temperature environments where resin components such as cages cannot be used.