Double ball bearing block with anodized aluminum cheeks. Works with 506-35, 506-75, 506-76 for a 4:1 purchase. Delrin(tm) ball bearing sheaves provide low-friction yet high safe working load. Swivel head may be locked in place to avoid twist.
Specifications:
Sheave Dia. 2" (51mm)
Thickness 1 21/32" (42mm)
Width 2 1/8" (54mm)
Length 5 1/16" (129mm)
SWL 1500 lbs. (680kg)
Weight 8.3oz (235g)
Max Line 7/16" (11mm)