Specifications
*Tip: When selecting line diameter, use one
size smaller for smooth-running blocks.
C
A
B
G
Part
No.
A - Sheave
diameter and
description
B -
Fasteners
(FH)
C - Hole
spacing
Top plate dimensions
F - Depth
G - Maximum
working load
Breaking
load
D - Length
E - Height
mm
in
mm
in
mm
in
mm
in
mm
in
kg
lb
kg
lb
1200
30 mm single
5
#10
57
2.24
74.6 2.94 24.8
.98
20.5
.81
250
551
500
1103
1201
30 mm double
5
#10
79
3.12
97.1 3.82 24.8
.98
20.5
.81
250
551
500
1103
1202
40 mm single
6
1/4
83
3.27 106.7 4.20 24.1
.95
30.2 1.19
400
882
800
1764
1203
50 mm single
6
1/4
90
3.54 116.8 4.60 28.6 1.13 40.3 1.59
800
1764 1600 3528
1204
60 mm single
8
1/4
105
4.13 128.6 5.06 28.6 1.13 50.5 1.99 1200
2646 2400 5292
2
Part
No.
Description
Sideplate Dimensions
Cutout Dimensions
H - Width
I - Length
J - Width
K - Length
mm
in
mm
in
mm
in
mm
in
1200
30 mm single
17
.67
44.5 1.75 18.2
.72
45.7 1.80
1201
30 mm double 17
.67
68.8 2.71 18.2
.72
70.1 2.76
1202
40 mm single 18.4
.73
57.9 2.28 19.7
.78
59.2 2.33
1203
50 mm single
22
.87
70.2 2.76 23.3
.92
71.5 2.81
1204
60 mm single
23
.91 82.75 3.26 24.3
.96
84.0 3.31
D
E
Max line Ø*
Part
Description
mm
in
1200
30 mm single
8
5/16
1201
30 mm double
1202
40 mm single
1203
50 mm single
12
1/2
1204
60 mm single
F
I
H
K
J
