LM guide + sphere screw = integrated structure actuator
Housing BGrease nippleHousing ALM rail Ball screw Nut blockDouble-row ball circuit (Figure 1) Construction of LM Guide Actuator Model KR Construction and Features
The LM guide actuator model KR provided with high-rigidity, high-precision functionality and space saving. It isachieved by a nut block designed in a structure that integrates an LM rail having a highly rigid U-shaped cross-
sectional form with the LM guide section on both side faces of the nut block and the ball screw section at the
center of the nut block.Each row of
industrial balls is arranged at a contact angle of 45 ° so that loads acting on the nut block in the four directions(radial, inverse radial, and two lateral directions) exhibit the same rated load. As a result, the LM guide actuator
model KR can be used in any position.
Four-way Equal Load Rating
Two rows of balls under a load are arranged in a double-row angular contact structure on the left and right,
respectively, and apply an equal rated load in the up, down, left, right directions. This means that the LM guide
actuator can be operated in any position, which makes it ideal for loading in directions that are not fixed such as
application in Cartesian coordinate
industrial robot arms.
(Figure 2) Load-carrying Capacity of Model KR 2