Ronstan ball bearing Orbit Blocks™ boast the highest strength-to-weight ratio available, achieved through all-composite reinforced polymer materials and multiple attachment options. Ultra low profile through-sheave becket. Use for jib clew block.
Specifications: 1-3/16" (30mm) sheave diameter; 1-7/8" long x 1-3/16" wide x 3/4" deep; 5/16" (8mm) maximum rope size; 661 lb. maximum working load; 1323 lb. breaking load; weighs .8 oz.