Low resistance at high, dynamic loads is the main characteristic of Seldén Roller Bearing Blocks (RBB). The ability to easily release a highly loaded backstay tackle, a main sheet, a spinnaker halyard or a kicker tackle makes for fast, safe and uncomplicated maneuvers.

You will find yourself focusing on what really matters - Boat speed.

TECHNICAL DETAILS

1. Torlon rollers
2. Insulating washer
3. Acetal ball bearings stabilize the sheave when subjected to side loads
4. Machined, black anodised aluminium sheave

SHACKLE DETAILS

1. RBB60: 6 mm body, RBB80: 8 mm body, RBB100: 10 mm, RBB130: 12 mm
2. Set screw. Switching from swiveling to fixed shackle (0° / 90°).
3. Machined, black anodised aluminium cheeks.
4. Swivel pin is hollow to reduce weight
5. RBB60: 8 mm pin, RBB80/100: 10 mm pin, RBB130: 12 mm