Ronstan 40mm Orbit Ratchet 40mm Single Switchable Ratchet Block Tracking_Boardfy our 30mm dynamic bearing blocks

our 30mm dynamic bearing blocks offer best in class strength and reliability

34 oz Height above track (in) 3mm Max

Sheave 38 mm Weight  92 g Maximum Wire  3 mm Maximum Line  5 mm Maximum Working Load  680 kg  Mounting Hole Spacing  75 mm Cutout  13 x 59 mm Breaking Load  1361 kg Fasteners  5 RH mm

Toplac has excellent flow characteristics and is available in a range of bright Colors

these efficient blocks have an incredible working load for their small size

Ronstan 40mm Orbit Ratchet 40mm Single Switchable Ratchet Block Tracking_Boardfy our 30mm dynamic bearing blocksRope Max 8mm Sheave 40mm Diameter Breaking Strength 385kg Max Working Load 110Kg See Video Link