MBS (pounds): 25,000 Rope Cap (inches): 3/4 Sideplates: Zinc Plated Steel Sheave: 2 3/4" Aluminum Mechanics: Bushing Axles: Stainless Size (inches): 6 1/2 x 4 Weight: 3.65 lbs or 3 lb 10 oz Efficiency: N/R Part Number: RP145|Weight: 3.65 lbs|MBS: 25,000 lbs (111kN)|Rope Capacity: 3/4"|Side Plates: Zinc Plated Steel|Mechanics: Bushing|Sheave: 2.75" Aluminum|Axle: Stainless Steel|Size (in): 6.5x4