Selden Ball Bearing 40mm Block: Becket & Swivel Technical features of the Selden Ball Bearing Ball 40mm:

• Stainless steel ball bearing races, stainless steel ball bearings and glass fibre reinforced sheave for best strength even under high dynamic loads.
• Acetal bearing cage to prevent ball-to-ball friction and to reduce weight.
• Composite, 50% Glass fibre and 50% Polyamide.
• Specification:
• Sheave Diameter: 40mm
• Weight: 80g
• Safe Working Load: 250kg
• Breaking Load: 500kg
• Max Line: 10mm
• Pin Diameter: 4mm
• Shackle Diameter: 4mm