Marking On The Master Rail And Combined Use; Marking On The Master Lm Guide; Marking On The Reference Surface - THK LM Guide Instruction Manual

3.

Marking on the Master Rail and Combined Use

3-1

Marking on the Master LM Guide

All LM rails mounted on the same plane are
marked with the same serial number. The
LM rail marked with "KB" after the serial
number is the master LM rail. The LM block
on the master LM rail has its reference
surface finished to a designated precision,
allowing it to serve as the positioning
reference for tables. (See Figure 3-1.)
LM Guides of normal grade are not marked
with "KB." Therefore, any one of the LM rails
having the same serial number can be used
as the master LM rail.
3-2.

Marking on the Reference Surface

In the LM Guide, the reference surface of
the LM block is opposite the surface marked
with the THK logo, and the reference surface
of the LM rail is on the surface marked with
a line, as shown in Figure 3-2. If usage
requires reversing the relative positioning of
the reference surfaces of the LM rail and
block, or if the grease nipple must be
oriented in the opposite direction, specify it.
Y2F123 KB
Figure 3-1 Master and Subsidiary LM Guides
(For Example, Model HSR-B)
THK mark
THK mark
Figure 3-2 Markings on the Reference Surface
3-1
3. Marking and
Combined Use
Master LM Guide
Subsidiary LM Guide
Master rail mark
Serial number
Reference
surface
Reference surface
Line mark
Master LM Guide
Reference surface
Line mark
Subsidiary LM Guide
LM Guide