Strength: 8,500lbs Sheave: Steel Mechanics: Sealed-Needle Bearing Sides: Stainless Steel Axle: Stainless Steel Max. Diameter: 5/8"/15.5mm Weight: 14.5oz/420g Color: Stainless Part Number: RC104|Weight: 0.9 lbs|MBS: 8,500 lbs (37kN)|Rope Capacity: 5/8"|Side Plates: Stainless Steel|Mechanics: Bearing|Sheave: 2 3/8" Steel|Axle: Stainless Steel|Size (in): 4.375x3.5|Efficiency: 95.6%