Relationships to be known
For each motor revolution cylinder moves x millimetres, x defined as
follows:
p
h
x
=
–––
r
x
Cylinder move
p
h
Roller or ball screw lead
Depending on case,
r
definition can change:
• Cylinder with motor in line without gear
r
= 1
• Cylinder with motor in line and gear
r
=
r
g
with
r
g
gear ratio
• Cylinder with motor in parallel without gear
r
=
r
b
with
r
b
belt system ratio
• Cylinder with motor in parallel and gear
r
=
r
b ·
r
g
2.3 Detailed description of supplied product
Generally, a detailed description of the supplied product is given by
the two following documents (called “documents for approval”):
• Technical description
• Cylinder drawing
IMPORTANT:
Before starting cylinder commissioning, these two
documents must be read If there is a problem, please make contact
with your local SKF representative
2 General notes
10
