HIWIN
1.4.5 Block types
HIWIN provides square and flange blocks for its linear guideways. Given their low
height and larger mounting surface, flange blocks are better suited for large loads.
Table 1.39
Block types
Type
Series
大小
Structure
Height
[mm]
Rail length
[mm]
Typical application
汉堡are type
WEH-CA
17 – 50
100 – 4.000
○
°
Automation
○
°
Handling industry
○
°
Measuring and test technology
○
°
Semiconductor industry
○
°
Injection moulding machines
○
°
Linear axes
Flange type
WEW-CC
1.4.6 Preload
1.4.6.1 Definition
Every rail type can be preloaded. Oversized balls are used for this purpose. Normally a
linear guideway has negative clearance between track and balls to increase rigidity and
precision. The curve shows that the rigidity doubles at higher preload.
P = 0,07 C
dyn
2、8页
Z0
Elastic deformation
without preload
ZB
Elastic deformation
with high preload
Operating load
Elastic deformation
1.4.6.2 Preload ID
Table 1.40
Preload ID
ID
Preload
Application
ZO
Light preload
0 – 0,02 C
dyn
Constant load direction, low impact, low accuracy needed
ZA
中预加载
0,03 – 0,05 C
dyn
High accuracy needed
ZB
High preload
0,06 – 0,08 C
dyn
High rigidity needed, vibration and impact
Linear Guideways
WE series
40