High density polyethylene
Combines the functions of a muffler and gooseneck
lost power
Additional nipples can be supplied as an option
Hardkote-anodized
HALYARD LIFT SINGLE Nautical Books & Publications High density polyethyleneThe Schaefer 3 Series Double Cheek Block with anodized Aluminum cheek. Delrin sheaves ensure smooth operation and high safe working load. Upper sheave safe working load 200 lbs (91kg), lower sheave 1000 lbs, (450 kg), Features Sheave Dia. 1 7 16, (37 mm) Max Wire 7 16, (11 mm) Jaw Opening 1 3 4, (44 mm), Pin. Dia. 1 5 8, (41 mm) Length 1 31 32, (50 mm) Width 19 32, (15 mm) Thickness (4), #10 RH (5 mm), C C Length 1 5 32, (29 mm), C C Across 1 5 16,