0item in your cart

57mm Runner Block

Part No. 3224

Sheave Ø (mm) 57 mm

Sheave Ø (in) 2 1/4 in

Maximum line Ø (mm) 12 mm

Maximum line Ø (in) 1/2 in

Maximum working load (kg) 1134 kg

Maximum working load (lb) 2500 lb

Runners are used on running backstays of offshore boats to adjust mast bend for different wind conditions. Integrated sideplate bails and recessed cotter key help produce a smooth design that won’t snag lifelines. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)86 mm
Length (in)3 3/8 in
Weight (g)125 g
Weight (oz)4.42 oz
Clevis pin Ø (mm)10 mm
Clevis pin Ø (in)3/8 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in)1/2 in
Maximum working load (kg)1134 kg
Maximum working load (lb)2500 lb
Breaking load (kg)2268 kg
Breaking load (lb)5000 lb
ID BOM Qty Price
HFS796 2 more info $0.30
Add to cart

Fastener - M4 x .7 x 12mm Socket Head Cap Screw, Black

Fasten with M4 hex wrench.

HFS181 1 more info $0.27
Add to cart

Cotter Pin - 3/32 x 3/4 Inch

HBB85 1 more info $28.00
Add to cart

Roller Cage Assembly - 57mm Black Magic Block

Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.

H-34389A 1 more info $26.21
Add to cart

Sheave Assembly - 57mm Black Magic Block

Sheaves are Hard Lube-anodized for maximum UV protection and a smooth surface. Captive Delrin® ball bearings carry side loads.