Description
Description
Ronstan Core Block #RF74108 features a two-stage bearing system for consistent low-friction performance under dynamic and static loads. With acetal sheave, alloy cheeks, and stainless fixings, it's perfect for spinnaker sheets, halyards, and control lines up to 14 m boats.
Our Part # RONRF74108| Ronstan Part # RF74108
Features
Features
Features:
- Class leading performance and sleek, contemporary styling.
- Excellent dynamic and high static load performance.
- Less than half the friction of the nearest competitor.
- Suits direct attachment to mainsail headboard for 2:1 halyard.
- Removable 8mm (5/16 in) screw pin at head.
- Acetal roller on head pin to suit spliced line attachment.
- Alloy Rope/Wire sheave version also available.
- Central hub hole can be used as a becket take-off or tie-up point.
Technical Information
Technical Information
Description | Imperial | Metric |
---|---|---|
Sheave Ø | 3.00 in. | 75.00 mm. |
Maximum Rope | 5/9 in. | 14.00 mm. |
Pin Ø | 1/3 in. | 8.00 mm. |
Maximum Working Load | 3307.50 lb. | 1500.00 kg. |
Breaking Load | 6615.00 lb. | 3000.00 kg. |
Weight | 8.25 oz. | 234.00 gr. |