Manufacturer part #: 657
Technical Description
4 1/2 in
114 mm
1 5/8 in
41 mm
25 oz
709 g
3/4 in
19.10 mm
3/8 in
10 mm
1 3/8 in
35 mm
7/8 in
18 mm
14850 lb
6736 kg
29700 lb
13472 kg
Manufacturer part #: 657
Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks.
Made of Hardkote-anodized, Teflon®-impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability.
Installation requires clamping or securing inner race.
Use for: Mainsheets Spinnaker sheets Afterguy/foreguy Footblocks
Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks.
Made of Hardkote-anodized, Teflon®-impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability.
Installation requires clamping or securing inner race.
Use for: