8" Aluminum Sheave Housing Kit (8 in. Web x 5 in. Flange)

$83.99

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About this Item

  • Made from 6061-T6 US aluminum
  • Designed for use with aluminum cradle beams
  • Includes housing, sheave, and mounting axle bolts
  • Fits 4 in., 5 in., and 6 in. flanges

The Aluminum Sheave Housing Kit slides onto the flange of an aluminum cradle beam. Then the housing secures to the flange with the mounting fasteners. Made from 6061-T6 US aluminum. Features a no-weld design. The size of the web and flange determines which size housing you will need.

Kit Includes:

(1)  Aluminum Cradle Beam Flange Mount Sheave Housing
(1) #33899 – 4″ Aluminum Sheave Housing w/ Bronze Bushing
(2) #12311 – 1/2″ x 2 1/2″ Stainless Steel Hex Head Bolts
(1) #36443 – 3/4″ x 3 1/2″ Stainless Steel Axle Bolt
(1) #21220 – 3/4″ Stainless Steel Nuts
(2) #33872 – 1/2″ Stainless Steel Split Lock Washers
(1) #33874 – 3/4″ Stainless Steel Lock Washers
(2) #21218 – 1/2″ Stainless Steel Nuts

Specifications

Material: 6061-T6 US Aluminum
Dimensions (6 in. Web x 4 in. Flange) 5 in. x 4 in. x 5 1/2 in.
Dimensions (8 in. Web x 5 in. Flange) 6 in. x 4 in. x 5 1/2 in.
Dimensions (10 in. Web x 6 in. Flange) 7 in. x 4 in. x 5 1/2 in.
Rating (6 in. Web x 4 in. Flange) 1.25 Ton (Based on I-Beam Ratings)*
Rating (8 in. Web x 5 in. Flange) 1.75 Ton (Based on I-Beam Ratings)*
Rating (10 in. Web x 6 in. Flange) 2.5 Ton (Based on I-Beam Ratings)*
Sheave Diameter 4 in.
Sheave Type Aluminum
Sheave Hub for 3/4" Bolt
Bearing Bronze Bushing
Axle Bolt 3/4 in. 316 Stainless Steel
Mounting Bolts (2) 1/2 in. x 2 1/2 in. 316 Stainless
BH-USA rates the individual blocks based on the rating of the beam that they are designed to fit. BH-USA bases this on structural aluminum I-Beams 4.03#/ 4.70# and 8.64#. Each block is individually rated, multiply this rating by the number of blocks to help determine boat size ie: 4 blocks each at 2,000 lbs lifting 8,000lb combined.