Sheave Size
Inches
Center Pin
Diam. Inches
Standard Wire
Rope Size In. ††
Weight, Pounds, Each Safe WLL*
Tons
4180 4190 4040
** 3 3/4 3/8 3 † 3 3 2
** 4 1/2 1 1/2 11 12 6 4
6 1 1/2 3/4 26 27 15 8
8 1 1/2 3/4 33 34 21 8
10 1 1/2 3/4 41 42 29 8
12 1 1/2 3/4 48 49 36 8
14 1 1/2 3/4 55 56 8
16 2 1/2 7/8 130 135 12
18 2 3/4 1 150 155 15

*Ultimate Load is 4 times the Safe Working Load.
†Fitted with 11/4″ I.D. Swivel Eye.
**Available in Bronze Bushed only.
††May be furnished in other wire rope sizes.

NOTE: In ordering, please specify: size, block number, hook or shackle, bronze bushed or roller bearing, and wire rope size.

4180
WITH HOOK
4190
WITH SHACKLE
4040
TOGGLE BLOCK (TAIL BOARD)
A B C D E F G H I J K L M N O P Q R
3″ 3 1.44 1.50 2.63 1.75 2.69 .97 .75 .75 1.13 .50 2.19 .56 .66 .56 1.31 .75 1.02
4 1/2″ 4.25 1.88 2.13 4.25 2.19 3.56 1.88 .94 1 1.00 .75 3.88 .94 .94 .75 1.94 1.13 1.53
6″ 6 2.28 3 5.13 3.25 5.13 2.31 1.31 1.50 1.50 1 6 1.25 1.50 1.25 3.49 1.56 1.78
8″ 8 2.28 4 6.13 3.25 5.13 2.31 1.31 1.50 1.50 1 6 1.25 1.50 1.25 3.49 1.63 1.78
10″ 10 2.28 5 7.19 3.25 5.13 2.31 1.31 1.50 1.50 1 6 1.25 1.50 1.25 3.49 1.69 1.78
12″ 12 2.28 6 9 3.25 5.13 2.31 1.31 1.50 1.50 1 6 1.25 1.50 1.25 3.49 1.69 1.78
14″ 14 2.28 7 9.50 3.25 5.13 2.31 1.31 1.50 1.50 1 6 1.25 1.50 1.25 3.49
16″ 16 3.09 8 11.50 3.56 5.88 2.94 1.50 1.75 2.50 1.25 5.13 1.75 1.56 1.50 3.13
18″ 18 3.09 9 11.75 3.56 5.88 2.94 1.50 1.75 2.75 1.25 5.13 1.75 1.56 1.50 3.13
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