Brand: Ronstan
Ronstan Series 40 Single Cheek All Purpose Block
Ronstan Series 40 Single Cheek All Purpose Block
4 available
The Ronstan Series 40 Single Cheek All Purpose Block is a versatile rigging solution engineered for both cruising and racing applications. Featuring a self-lubricating Acetal polymer sheave that rides on a polished stainless steel race, this block handles both dynamic and high static loads with reliability.
- High performance: Designed for high working loads with minimal maintenance requirements.
- Durable construction: Features UV-stabilized Acetal sheaves, impact-resistant fiber-reinforced nylon cheeks, and Grade 316 stainless steel bearing races.
- Versatile mounting: Compatible with masts and booms using a curved surface adapter.
- Stackable design: Can be stacked to create a double block configuration or integrated with Ronstan Series 40 deck organizers (limit load on upper sheave to 60% of rated capacity when stacked).
Applications: Suitable for mainsheet, halyard, vang, and spinnaker control lines on boats up to 8m (26ft), including catamarans, one-design classes, and sportsboats. Manufacturer part number: RF41811.
Product facts
- CT SKU
- CT-117303
- UPC / GTIN
- 9316800341795
- Package weight
- 0.15 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
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
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Need help choosing?
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