Ronstan CW72397 Series 30 Utility Ball Bearing Block Single Swivel Shackle Head
by Ronstan

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Ronstan Series 30 Single Ball Bearing Block with Swivel Shackle

Overview: The Series 30 block is designed for optimal performance with a lightweight construction and high load capacity, making it ideal for various sailing applications.

Key Features:

• Low-friction, two-stage ball bearing system ensures smooth operation under load.
• Designed for high static and dynamic load capabilities, suitable for demanding environments.
• Lightweight design enhances overall efficiency and ease of use.
• Versatile head fittings allow for multiple attachment options.

Technical Specifications:

Constructed with Acetal or Torlon® ball bearings, this block provides low friction and high performance. The unique two-stage bearing system guarantees consistent function across the full load spectrum. The shackle can be fitted in two orientations, facilitating proper block alignment.

Applications:

• Ideal for primary lead blocks on dinghies and catamarans.
• Effective for control lines on larger yachts and racing vessels.

Materials Used:

• U.V. stabilized Acetal sheaves for durability in sunlight.
• Acetal ball bearings for smooth operation.
• Nylon cheeks that are impact modified, fiber reinforced, and U.V. stabilized.
• Grade 316 stainless steel components for superior strength and corrosion resistance.