12
Pulley outside dimensions are shown below : (Unit : mm)
(1) Shape of belt groove
Shape of
V-belt
Nominal
Dia.
∅
P.C
a
(
°
)
W
L
o
K K
o
e
f
r
1
r
2
r
3
V-belt
thickness
(Reference)
Over 125
Under 160
34
15.86
Over 160
Under 200
36
16.07
B
Over 200
38
16.29
12.5 5.5
9.5 19.0 12.5 0.2~0.5
0.5~1.0
1~2
11
Sectional plan of V-belt
(2) Shape of motor pulley boss (Unit:mm)
MOTOR
CAPACITY
(kW)
A
B
C
+0.028
+0.128
+0.018
1.1, 1.5
∅
∅
24
+0.007
27
+0.007
8
-0.018
+0.028
+0.128
+0.028
2.2, 3.7
∅
∅
28
+0.007
31
+0.007
8
-0.013
+0.028
+0.128
+0.028
5.5
∅
∅
38
+0.007
41
+0.009
10
-0.013