⑴--Type
of
slewing
ring
Q:
Single-row
ball
⑵--Code
of
driven
type
W:
Outer
teeth;
N:
Inner
teeth;
U:
No
teeth
⑶--Code
of
installation
hole
type
A:
Both
rings
with
installation
bolt
holes
B:
Both
rings
with
installation
screw
holes
C:
Outer
ring
with
installation
screw
holes,
inner
ring
with
installation
bolt
holes
D:
Outer
ring
with
installation
bolt
holes,
inner
ring
with
installation
screw
holes
|
⑷--Dia.
of
track
center,
mm
⑸--Dia.
of
roller
ball,
mm
⑹--Classification
code
No.
of
gear
module
A:
bigger
module,
without
A:
normal
⑺--precision
grade
G:
High
precision;
without
G:
normal
For
example:
Single-row
ball,
bigger
module,
outer
gear,
outer
ring
with
installation
screw
holes,
inner
ring
with
installation
bolt
holes,
Dia.
of
track
center
1250mm,
Dia.of
ball
40mm,
refer
to
the
following:
Slewing
ring
QWC1250.40A
JG/T
66-1999 |