Ronstan Series 60 Ultimate Ratchet Block

Product description

The patented extruded hole design, in conjunction with the groove profile of the sheave, provides a more powerful grip than conventional designs - up to 20:1 holding power. Unrivalled low weight is achieved by the use of a Torlon® ratchet pawl, high grade machined alloy sheave and black Acetal hubs and bearings. On-Off switching knob is fitted to both sides of the swivel blocks (one can be removed if desired). Ratchet blocks can be disassembled for servicing or customisation.

Features

• Unrivalled 20:1 holding power
• Dual sided On-Off switch
• Ability to operate On/Off switch under load
• Low friction ball bearing system
• Lightweight
• Cheek cut-outs for easy bearing maintenance

Applications

• Mainsheet on powerful dinghies and skiffs
• Series 60 mainsheet systems on sportsboats using RF7 mainsheet swivel units
• Control line applications on larger yachts
• Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)

Materials

• Carbon black Acetal ball bearings
• Anodised aluminium sheave and cheek plates
• Torlon® ratchet pawl
• Grade 316 stainless steel forged shackle

Specifications

• Sheave Ø: 60 mm | 2-3/8"
• Max. Rope Ø: 10 mm | 3/8"
• Pin Ø: 5.0 mm | 3/16"
• Max Working Load: 250 kg | 550 lb
• Break Load: 1370 kg | 3020 lb
• Weight 150 g | 5.3 oz