5 Ton to 13 Ton Capacity

SPECIFICATIONS

Block Number Sheave Size Sheave Pin
Size
Line Size Weight SWL*
Bronze
Bearings
A-4 4 x 13/8 1 1/4 3/8 11 lbs. 10,000 lbs.
A-6 6 x 1 1/2 1 1/2 3/8 – 1/2 17 lbs. 14,000 lbs.
A-8 8 x 1 1/2 1 1/2 1/2 – 5/8 29 lbs. 16,000 lbs.
A-10 10 x 1 1/4 1 1/2 5/8 – 3/4 34 lbs. 16,000 lbs.
A-12 12 x 1 3/8 1 15/16 3/4 – 7/8 55 lbs. 27,000 lbs.
Roller
Bearings
A-4R 4 x 1 3/8 1 3/8 11 lbs. 10,000 lbs.
A-6R 6 x 1 1/8 1 1/4 3/8 – 1/2 17 lbs. 13,000 lbs.
A-8R 8 x 1 1/8 1 1/4 1/2 – 5/8 29 lbs. 13,000 lbs.
A-10R 10 x 1 1/4 1 1/4 5/8 – 3/4 37 lbs. 13,000 lbs.
A-12R 12 x 13/8 1 1/2 3/4 – 7/8 55 lbs. 25,0001bs.

* Ultimate strength is 5 times safe working load.

 

DIMENSIONS

Block Number A B C D E G H J K
A-4 & A-AR 7 3/4 3 1/2 1 1/8 1 1/2 1 1/4 3 1/2 7/8 7/8 4 1/2
A-6 & A-6R 10 1/2 4 7/8 1 1/2 1 1/2 4 1/2 1 1 6 1/2
A-8 & A-SP 14 1/2 4 1 1 1/2 1 3/4 6 1 1/4 1 1/4 9
A-10 & A-10R 16 1/2 4 1 1 1/2 1 3/4 6 1/2 1 1/4 1 1/4 11
A-12 & A-12R 19 3/4 6 1/4 1 1 3/4 2 1/4 6 1/2 1 1/2 1 1/2 12 1/2

MANGANESE LONG-LIFE SHEAVES

 

Click here to find out more information

Print Friendly