Short pitch Transmission precision roller chains (A series):
---------------------------------------
120
General Dimensions
(Unit):mm
ISO Chain
NO.
ANSI Chain
NO.
Pitch
Bush Diameter
max
Width Between Inner Plates
min
Pin Diameter
max
Plate Thickness
max
Inner
Plate Depth
max
Outer
Plate Depth max
P
Dr
W
D
T1
T2
H
h
24A
120
38.10
22.23
25.22
11.11
4.80
4.80
36.20
31.24
Dimensions of strands
Chain NO.
Pin Length
Transverse Pitch
Average
Tensile Strength
Tensile
Strength
min
Weigtht
Per
Meter
L
max
Lc
max
L1
max
L2
max
L3
max
C
KN
KN
Kg/m
120-1
50.80
54.30
25.40
28.90
56.30
45.44
157.20
124.60
5.95
120-2
96.30
99.75
48.15
51.60
103.55
314.40
249.10
11.73
120-3
141.70
145.25
70.85
74.40
149.05
471.60
373.70
17.55
120-4
187.20
190.70
93.60
97.10
194.50
628.80
！！
23.40
120-5
232.70
236.20
116.35
119.85
240.00
786.20
！！
29.20
120-6
278.20
281.65
139.10
142.55
285.45
943.20
！！
35.00
