Hiwin MG Series - Page 61

Appendix
61
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
12.3.3 Height tolerance for mounting areas on block (S
2
/S
3
)
The height tolerance of the reference surface in the parallel use of two or more blocks (S2/S3)
S
2
=
b × K
S
2
Max. height tolerance [mm]
b Distance between two blocks [mm]
K Coefficient of the height tolerance
S
3
Max. height tolerance [mm]
b Distance between two blocks [mm]
K Coefficient of the height tolerance
S
3
=c × K
Series Size Load type
CG_C CG_H
CG 15 – 45 4.2 × 10
–5
3.0 × 10
–5
Series Size Load type
RG_C/QR_C RG_H/QR_H
RG 15 – 65 4.2 × 10
–5
3.0 × 10
–5
QR 25 – 45 4.2 × 10
–5
3.0 × 10
–5
Table 12.6 Coefficient of the height tolerance (K) – CG series
Fig. 12.3 Max. height tolerance S
2
Fig. 12.4 Max. height tolerance S
3
b
0.010
0.010
0.010
0.010
0.010
S
2
B
B
A
A
A
A
Accuracy requirement for
all block-mounting reference surfaces
c
0.010
0.010
A
S
3
Accuracy requirement for
all block-mounting reference surfaces
Table 12.7 Coefficient of the height tolerance (K)