Selden RBB60 Single Roller Bearing Block – 60 mm

The Selden RBB60 Single Roller Bearing Block (406-201-01) is engineered for high-load, dynamic sailing applications where performance and reliability are essential. Designed with a 60 mm sheave, this block ensures smooth and efficient line handling even under heavy loads.

Constructed from machined black anodized aluminium, the block combines strength with lightweight performance. It features Torlon® roller bearings for ultra-low friction and acetal thrust bearings that stabilize the sheave under side loads. A polymer washer prevents corrosion by insulating stainless steel components from aluminium.

The optimized swivel shackle (Ø6 mm body, Ø8 mm pin) is hollow and chamfered to reduce weight while maintaining maximum strength. This makes the block ideal for applications such as mainsheets, halyards, backstays, and spinnaker systems.

Key specifications:

• Sheave diameter: 60 mm
• Safe working load: 1500 kg
• Breaking load: 3000 kg
• Maximum line diameter: 12 mm
• Weight: approx. 209 g