THK LM Guide, Instruction Manual

4-4

4. Assembly

4.  

Assembly

LM Guide

z

Using the Parallelism of the Table

Secure the two LM blocks on the master LM rail to the 

table (or a temporary table for measurement), and 

temporarily fasten the subsidiary LM rail and the LM 

block on the subsidiary LM rail to the table. Place a dial 

gauge against the side surface of the LM block on the 

subsidiary rail from the dial stand fixed on the table top, 

then secure the bolts in proper order while maintaining 

the parallelism of the subsidiary LM rail by moving the 

table from the rail end. (Figure 4-11)

z

Having the Subsidiary LM Rail Follow the Master LM Rail

Place the table on the LM blocks of the correctly 

mounted master LM rail and the temporarily fastened 

subsidiary LM rail, and fully fasten the two LM blocks on 

the master rail and one of the two LM blocks on the 

subsidiary rail with bolts. Fully fasten the mounting bolts 

on the subsidiary LM rail in order while temporarily 

fastening the remaining LM block on the subsidiary LM 

rail. (Figure 4-12)

z

Using a Jig

Use a jig like the one shown in Figure 4-9 to maintain 

the parallelism of the side reference surface of the 

subsidiary rail with the side reference surface of the 

master rail, sequentially moving from one end of the rail 

by the mounting pitch, and at the same time, fully fasten 

the mounting bolts in order. (Figure 4-13)

Figure 4-11

Figure 4-12

(a)

(b)

Figure 4-13