Series 55 Ball Bearing Orbit Block - Double with Becket

These blocks have a more traditional swivel head and shackle which makes them ideal for use in applications where the attachment points are difficult to access or inspect, or where the standard Dyneema® link of the Orbit range may not be suitable for the intended attachment point. Use where the attachment point is a fixed saddle or pad eye and free rotation is critical.

• Ultra low profile; integrated becket
• Provides smooth, uninterrupted 360° rotation
• Sheave is carbon fiber reinforced, PTFE impregnated nylon
• Stage 2 bearing: glass fiber reinforced lubricant impregnated nylon
• Mainsheet systems and spinnaker sheets on dinghies, sports boats and small keel boats to 30 ft. for RF55110; to 26 ft. for RF45110
• Halyard, vang and backstay applications on boats to 26 ft

Lightweight - Kilogram for kilogram of working load, these ball bearing Orbit Blocks™ are the world’s lightest.
The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.
Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

Highest working load in its class The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modelled to be stress optimized

Features
• Ultra lightweight
• Low friction 2-stage Orbital ball bearing system
• Highest working load in its class
• Low profile and compact
• High performance cleating
• Swivel shackle head for unlimited block rotation
• Stainless steel shackle head and compatibility with sharp fixing points
• Ultra low profile integrated beckets