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The Ronstan Low Friction Ring offers a lightweight, durable alternative to traditional blocks for applications with small deflection angles and high static loads. Its smooth, rounded profile reduces line friction for easy trimming, while the deep external groove securely retains rope loops. Hard anodised aluminium construction ensures strength, reliability, and low maintenance performance.
Ronstan Low Friction Ring Item # 1828617
Description
Low friction rings can be used as a lightweight alternative to a block in some applications. They are best suited for systems requiring relatively small line deflection angles, or for high static loads.
The design achieves a nicely rounded internal profile for smooth control line trim under load, and a deep external groove to retain the rope securely within the large shoulders when spliced into a loop.
Features:
- Compact & lightweight
- Low friction
- Large shoulder secure allowing for rope lashing
- Durable
- Simple & reliable design
- Low maintenance
Specifications:
- 5/16" (8 mm):
- Maximum Working Load: 2205 lbs (1000 kg)
- Weight: 0.14 oz (4 g)
- Internal Diameter: 0.315" (8 mm)
- Outside Diameter: 0.866" (22 mm)
- Dimensions:
- A: 0.315" (8 mm)
- B: 0.866" (22 mm)
- C: 0.276" (7 mm)
- D: 0.433" (11 mm)
- 5/8" (16 mm):
- Maximum Working Load: 7716 lbs (3500 kg)
- Weight: 0.61 oz (17.3 g)
- Internal Diameter: 0.630" (16 mm)
- Outside Diameter: 1.496" (38 mm)
- Dimensions:
- A: 0.630" (16 mm)
- B: 1.496" (38 mm)
- C: 0.433" (11 mm)
- D: 0.669" (17 mm)
- 13/16" (21 mm):
- Maximum Working Load: 11023 lbs (5000 kg)
- Maximum Rope Diameter: 0.551" (14 mm)
- Weight: 1.16 oz (33 g)
- Internal Diameter: 0.827" (21 mm)
- Outside Diameter: 1.850" (47 mm)
- Dimensions:
- A: 0.827" (21 mm)
- B: 1.850" (47 mm)
- C: 0.571" (14.5 mm)
- D: 0.866" (22 mm)
- Material: Hard anodised aluminium
Applications:
- Deflecting lead lines
- Static load applications
- Barber haulers, lazyjacks, backstays, cascading vangs