The Ronstan Series 20 Single Ball Bearing Block features a low-friction design with a cheek rivet mount, suitable for various rigging applications on small sailboats. It utilizes precision-molded acetal sheaves running on stainless steel ball bearings to ensure smooth operation under both static and dynamic loads.
- Sheave diameter: 20mm (3/4")
- Maximum rope diameter: 6mm (1/4")
- Maximum working load: 200kg (440 lbs)
- Breaking load: 550kg (1,210 lbs)
- Weight: 17g (0.6 oz)
- Mounting: Designed for screw or pop rivet installation
- Materials: UV-stabilized acetal sheaves, stainless steel ball bearings, grade 316 stainless steel load strap/head fitting, and UV-resistant fiber-reinforced nylon cheeks
This block is intended for use with dinghy control lines, vangs, cunninghams, and traveller controls. Its lightweight construction is optimized for performance rigging.
Product facts
- CT SKU
- CT-103684
- Model / MPN
- RF20151A
- UPC / GTIN
- 9316800262007
- Package dimensions
- 1" X 2" X 3"
- Package weight
- 0.05 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
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Shipping & returns
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Fit & compatibility
Fit & compatibility
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