SPECIFICATIONS

Block Number Sheave Size Sheave Pin
Size
Line Size Weight SWL*
Roller
Bearings
S-4R 4 x 1 3/8 1 3/8 11 lbs. 6,000 lbs.
S-6R 6 x 1 1/8 1 1/4 3/8 – 1/2 25 lbs. 13,000 lbs.
S-8R 8 x 1 1/8 1 1/4 1/2 – 5/8 32 lbs. 13,000 lbs.
S-1 0R 10 x 1 1/4 1 1/4 5/8 – 3/4 44 lbs. 13,000 lbs.
Bronze
Bearings
S-4 4 x 1 3/8 1 1/4 3/8 11 lbs 6,000 lbs.
S-6 6 x 1 1/8 1 1/2 3/8 – 1/2 25 lbs 13,000 lbs.
S-8 8 x 1 1/8 1 1/2 1/2 – 5/8 32 lbs. 14,000 lbs.
S-10 10 x 1 1/4 1 1/2 5/8 – 3/4 44 lbs. 14,000 lbs

* Ultimate strength is 5 times safe working load.

 

DIMENSIONS

Block Number A B C E F G H K
Roller
Bearings
S-4 & S-4R 12 3 1/2 1 1/8 1 1/4 2 7/8 2 7/8 13/16 4 1/2
S-6 & S-6R 16 3/4 4 7/8 1 7/8 2 1/2 4 1 5/8 7
S-8 & S-8R 20 4 1 1 7/8 2 1/2 4 3/4 1 5/8 9
S-10 & S-10R 22 4 1 1/8 2 2 1/2 4 3/4 1 3/4 11
Bronze
Bearings
S-4 & S-4R 14 1/2 4 1 1/8 2 2 1/2 2 1/16 3/4 4 1/2
S-6 & S-6R 17 3/4 4 7/8 2 9/32 2 1/2 2 1/2 7/8 7
S-8 & S-8R 21 4 1 2 11/16 2 1/2 2 5/8 1 9
S-1 0 & S-10R 22 1/2 4 1 1/8 2 11/16 2 1/2 2 5/8 1 11

MANGANESE LONG-LIFE SHEAVES

 

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