Ronstan Series 40 Ball Bearing Double Orbit Block - RF48210

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fibre reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.

As well as traditional single swivel blocks, the range also includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is extremely versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.

Series 40 Orbit Blocks™ are fitted with Ronstan's carbon reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and are adjustable for setting to your preferred cleating angle.

Features:

• 2-stage ball bearing system
• Headposts freely swivel or can be locked in 0 deg. or 90 deg.
• Removable becket pins allow lines to be spliced prior to fitting and are secured using a split ring

Specifications:

• Sheave Diameter: 1 9/16" (40 mm)
• Maximum Rope Diameter: 3/8" (10 mm)
• Pin Diameter: 5/32" (4 mm)
• Maximum Working Load: 1320 lbs (600 kg)
• Breaking Load: 2650 lbs (1200 kg)
• Weight: 4.6 oz (130 g)
• Applications:
  • Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sports boats to 26' (8 m)
  • Halyard, vang and backstay applications on boats to 30' (9 m)
  • Control line applications on larger yachts
• Materials:
  • Sheave and ball bearings: High compression strength acetal
  • Frame/cheeks: Toughened, glass fibre reinforced nylon
  • Head fittings and hubs: Grade 316 stainless steel