THK LM Guide - Dimensional Tolerance of Mounting Surface; Error Allowance in Parallelism between Two Rails; Error Allowance in Vertical Level between Two Rails

5-1
5. Dimensional
Tolerance
LM Guide
5.
Dimensional Tolerance of the Mounting Surface
The LM Guide allows smooth straight motion through its self-aligning capability even when there
is a slight distortion or error on the mounting surface.
z
Error Allowance in the Parallelism between Two Rails
A mounting surface error of the LM Guide may affect the service life. See the general catalog for
the error allowance of the mounting surface for each model number in general use.
P
Figure 5-1 Error Allowance in the Parallelism (P) between Two Rails
z
Error Allowance in Vertical Level between Two Rails
Error allowances in vertical level between two rails per axis-to-axis distance of 500 mm are
proportionate to axis-to-axis distances (200 mm for models SRS and RSR).
S
Figure 5-2 Error Allowance in Vertical Level (S) between Two Rails