• Ronstan Series 15 Ball Bearing Pivoting Lead Block, 15mm Sheave, 260lb MWL
1 1
1 product view Open images for a closer look Compare photos with product details

Ronstan

Ronstan Series 15 Ball Bearing Pivoting Lead Block, 15mm Sheave, 260lb MWL

Ronstan Series 15 Ball Bearing Pivoting Lead Block, 15mm Sheave, 260lb MWL

SKUCT-106534

$40.34
$40.34
Sale Sold out
Shipping calculated at checkout.
Shipping rewards at $100 U.S. orders of $100 or more get free standard shipping, plus $10 off Expedited and Overnight.

Low stock

Use the Tug & Tow SKUInclude this SKU when you contact us about fit, availability, or reorders.
Delivery shown at checkoutShipping options, final costs, and delivery estimates appear before payment.
Check fit before orderingReview dimensions, part numbers, model details, and compatibility notes.
Confirm the details before checkoutFit can depend on your boat, RV, trailer, vehicle, or equipment. Contact us before ordering if compatibility is critical.Ask a product question

Product details

Review the details before ordering.

Experience superior performance and minimal friction with the Ronstan Series 15 Ball Bearing Pivoting Lead Block. Engineered as one of the smallest and lightest ball bearing blocks available, this utility block is designed for efficiency and durability in demanding marine applications. Its precision construction ensures reliable operation, making it an essential component for competitive sailors and recreational enthusiasts alike. Upgrade your rigging with Ronstan's trusted performance today.

Key Benefits & Features:

  • Ultra-Lightweight Design: Recognized as one of the smallest and lightest ball bearing blocks on the market, optimizing performance without adding bulk.
  • High-Performance Sheave: Features a 15mm (5/8") precision-molded acetal sheave for high performance and exceptionally low friction.
  • Durable Stainless Steel Bearings: Stainless steel ball bearings ensure smooth operation and long-lasting reliability.
  • Robust Construction: Cheeks crafted from Grade 316 stainless steel provide superior strength and corrosion resistance in harsh marine environments.
  • Optimized Load Distribution: Incorporates a 4-point fastening system for improved load distribution and a low-profile installation.
  • Line Management: A single loop head block includes an O-ring to effectively separate running lines from head lashings or fixings.
  • Effortless Installation: Designed for convenient mounting without requiring disassembly.
  • Impressive Load Capacity: Offers a Safe Working Load (MWL) of 260 lbs (120 kg) and a Breaking Load of 770 lbs, ensuring secure handling for critical lines.

Applications & Compatibility:

  • Ideal for dinghy control lines, vangs, cunninghams, and tweakers.
  • Perfect for shock cord tensioning systems.
  • Suitable for keel boats and small control lines on larger vessels.

Shipping & returns

Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.

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.

Need help choosing?

Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.

View full details