Ronstan Aluminum BB Sheave

This Aluminum Ball Bearing Sheave features a durable alloy construction with precision Torlon balls.

Features:

• Alloy sheave designed for strength and durability in demanding applications
• Oversized Torlon balls reduce friction for smoother rotation and longer life
• Compact design suitable for tight spaces with a narrow width
• Engineered to support moderate loads with efficient bearing performance

30 mm (1 3/16") Diameter Specifications:

• Bore Diameter: 6 mm (1/4")
• Sheave Diameter: 30 mm (1 3/16")
• Width: 7.7 mm (5/16")
• Max Rope Diameter: 5 mm (3/16")
• Weight: 10 g (0.4 oz)
• Applications: Ronstan Series 30 Alloy Sheave Blocks

40 mm (1 9/16") Diameter Specifications:

• Bore Diameter: 6 mm (1/4")
• Sheave Diameter: 40 mm (1 9/16")
• Width: 10.1 mm (13/32")
• Max Rope Diameter: 6 mm (1/4")
• Weight: 15 g (0.5 oz)
• Applications: Ronstan Series 40 Alloy Sheave Blocks

50 mm (2") Diameter Specifications:

• Bore Diameter: 6 mm (1/4")
• Sheave Diameter: 50 mm (1 31/32")
• Width: 12 mm (15/32")
• Max Rope Diameter: 8 mm (5/16")
• Weight: 32 g (1.1 oz)
• Applications: Ronstan Series 50 Alloy Sheave Blocks