Hiwin MG Series - Setup and Operation; Tolerances by Accuracy Class

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Product description
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
3.2 Setup and operation of the linear guideway
A linear guideway enables linear movement with the aid of rolling elements. By using balls or rollers between the rail and
the block, a linear guideway can achieve an extremely precise linear movement. Compared to a conventional sliding guide,
the coefficient of friction is only one fiftieth. The high degree of efficiency and zero backlash make HIWIN linear guideways
extremely versatile.
The following figure shows the design and the components used.
3.3 Tolerances depending on accuracy class
Linear guideways are offered in different accuracy classes depending on the parallelism between block and rail, the height
accuracy H and the accuracy of width N.
Five accuracy classes are available for the HG, QH, EG, QE, CG, WE, QW, RG and QR series and three for the MG series.
C
H
A
D
B
N
Fig. 3.1 Exploded view of the design of a linear guideway
Table 3.1 Key for Fig. 3.1
Pos. Name Pos. Name
1 Basic unit 4 Grease nipple
2 Rolling element 5 Deflection system
3 Wiper 6 Profile rail
[1]
[2]
[5]
[3]
[4]
[6]
Fig. 3.2 Tolerances of the HIWIN linear guideways