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Home: Marine Catalog: Deck Accessories: Blocks and Hardware:

Harken Stainless Steel Block Stand Up
Cat. No. HAR 31SU
Weight 5 lbs

Stainless Steel Stand Up Block

Hand-polished stainless steel sideplates are the trademark of these beautiful blocks. But itís the sheave design that gives them their strength and durability. Sheaves use a low-friction composite sleeve bearing for extreme radial loads. Ball bearings handle side loads. This proven sheave design is used on super-yachts where blocks must perform under very high, sustained loads without being excessive in size.

Block details include low-profile screw adapters and stainless-on-stainless construction for easy service. Sheaves on footblocks remove without unbolting the block. Headposts on swivel blocks lock or swivel freely.

Description Stand-up
3138
Stand-up
3152
Stand-up
3182
Sheave dia. (in) 3 4 5
Length (in) 5 13/16 7 11/16 9 3/16
Weight (oz) 29.6 59.2 104.9
Max. line dia. (in) 9/16 3/4 7/8
SWL (lb) 5000 7500 11000
Breaking strength (lb) 10000 15000 22000
A (in) 3 3 11/16 3 11/16
B (in) 2 15/16 3 3/4 4 1/4
C (in) 1 3/4 2 1/4 2 7/16


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