HIWIN
1.3.13.2 Accuracy – height and width
Height tolerance H
Permissible absolute dimension variance of height H, measured between centre of
screw-on surface C and underside of rail A, with block in any position on the rail.
Height variance of H
Permissible variance of height H between several blocks on a rail, measured in the
same rail position.
Width tolerance N
Permissible absolute dimension variance of width N, measured between centre of
screw-on surfaces D and B, with block in any position on the rail.
Width variance of N
Permissible variance of width N between several blocks on a rail, measured in the
same rail position.
Table 1.34
Height and width tolerances of non-interchangeable types
Series/size
Accuracy class
Height tolerance of H
Width tolerance of N
Height variance of H
Width variance of N
EG_15, 20
QE_15, 20
Normal (C)
± 0,1
± 0,1
0,02
0,02
High (H)
± 0,03
± 0,03
0,01
0,01
Precision (P)
0
– 0
,03
0
– 0
,03
0006年
0006年
Super precision (SP)
0
– 0
,015
0
– 0
,015
0004年
0004年
Ultra precision (UP)
0
– 0
,008
0
– 0
,008
0,003
0,003
EG_25, 30, 35
QE_25, 30, 35
Normal (C)
± 0,1
± 0,1
0,02
0,03
High (H)
± 0,04
± 0,04
0,015
0,015
Precision (P)
0
– 0
,04
0
– 0
,04
0007年
0007年
Super precision (SP)
0
– 0
,02
0
– 0
,02
0005年
0005年
Ultra precision (UP)
0
– 0
,01
0
– 0
,01
0,003
0,003
Unit: mm
Table 1.35
Height and width tolerances of interchangeable types
Series/size
Accuracy class
Height tolerance of H
Width tolerance of N
Height variance of H
Width variance of N
EG_15, 20
QE_15, 20
Normal (C)
± 0,1
± 0,1
0,02
0,02
High (H)
± 0,03
± 0,03
0,01
0,01
Precision (P)
± 0,015
± 0,015
0006年
0006年
EG_25, 30, 35
QE_25, 30, 35
Normal (C)
± 0,1
± 0,1
0,02
0,03
High (H)
± 0,04
± 0,04
0,015
0,015
Precision (P)
± 0,02
± 0,02
0007年
0007年
Unit: mm
1.3.14 Permissible mounting surface tolerances
Once the requirements relating to the accuracy of the mounting surfaces are met, the
good accuracy, rigidity and lifetime of the EG and QE series linear guideways are
achieved.
S
1
(500)
P
Parallelism of the reference surface (P)
Linear Guideways
EG/QE series
36