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100mm Runner Block

Part No. 3251

Temporarily out of stock

Sheave Ø (mm) 100 mm

Sheave Ø (in) 3 15/16 in

Maximum line Ø (mm) 16 mm

Maximum line Ø (in) 5/8 in

Maximum working load (kg) 3402 kg

Maximum working load (lb) 7500 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)100 mm
Sheave Ø (in)3 15/16 in
Length (mm)157 mm
Length (in)6 3/16 in
Weight (g)481 g
Weight (oz)17 oz
Clevis pin Ø (mm)15.9 mm
Clevis pin Ø (in)5/8 in
Maximum line Ø (mm)16 mm
Maximum line Ø (in)5/8 in
Maximum working load (kg)3402 kg
Maximum working load (lb)7500 lb
Breaking load (kg)6804 kg
Breaking load (lb)15000 lb
ID BOM Qty Price
HFS220 1 more info £0.71
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Cotter Pin - 1/8 x 1 Inch

HFS806 2 more info £1.38
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Fastener - M5 x .8 x 16mm Socket Head Cap Screw, Black

Fasten with M5 hex wrench.

HBB87ASSY 1 more info

Roller Cage Assembly - 100 mm Black Magic Block

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