Ronstan Series 30 Ball Bearing Block - Single - Loop Top

The Series 30 Ball Bearing Block - Single - Loop Top is engineered for superior performance in marine and boating applications. Designed to withstand the harsh marine environment, this block offers reliable functionality for both small dinghies and larger yachts.

Features

• Advanced low friction 2-stage ball bearing system ensures consistent performance across the entire working load range
• Exceptional static and dynamic load capacity for demanding marine applications
• Lightweight construction reduces overall vessel weight for improved handling
• Versatile head fittings allow for flexible installation and alignment
• High-performance sheaves crafted from Acetal or Torlon® ball bearings provide minimal friction, enhancing efficiency
• Dual-plane shackle fitting capability enables precise alignment of the block for optimal operation

Applications

• Primary lead blocks on dinghies and catamarans, ensuring smooth sailing and ease of handling
• Control lines on larger yachts, facilitating effective line management and operation

Materials

• U.V. stabilized Acetal sheaves resist degradation from sun exposure, ensuring longevity
• Durable Acetal ball bearings provide reliable performance in saline environments
• Impact-modified, fiber-reinforced, and U.V. stabilized Nylon cheeks offer enhanced strength and resilience
• Grade 316 stainless steel load straps and head fittings resist corrosion, ideal for marine conditions

Specifications

Specification	Details
Sheave Ø	30mm (1-3/16")
Max. Rope Ø	8mm (5/16")
M.W.L.	300kg (660lbs)
B. L.	750kg (1,650lbs)
Weight	28g (1.0oz)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.