Single sheave with hook Sheave Size (in) Wire Rope Size (in) Capacity at F. OF S. 4:1 US tons Capacity at F. OF S. 2:1 US tons 4 1/2 3/8 - 1/2 2 1/2 5 6 3/4 8 16 6 3/4 12 24 8 3/4 8 16 8 3/4 12 24 8 1 1/8 22 44 10 5/8 - 3/4 8 16 10 3/4 12 24 10 1 1/8 22 44 12 5/8 - 3/4 8 16 12 3/4 12 24 12 1 1/8 22 44 14 3/4 12 24 14 1 1/8 22 44 Features Bearings The 4 1/2" Block is fitted with special bronze bush but can be fitted with taper roller bearings wIth special bronze bush if requested. Capacity The 4:1 capacity load given in the table are the maximum head fitting loads that should be applied to the Blocks.These capacity loads are based on a Fador of Safety of 4:1 and the Blocks are proof tested to twice this capacity load.The table also details a comparative capacity load at Fador of Safety2:1 so that the users may compare the 'High Load' Blocks with alternative makes based on this Lower Safety Fador. Double Sheave Light champion snatch block as a double sheave block. Drop forged swivel hook or swivel shackle. Can be furnished with bronze bushing and roller bearings. Opening features permits easy insertion of wire rope in both sheaveswith removal of one bolt. Can be furnished with hook latch. Pressurelube fittings. Fatigue rated.