10% Off Your First Purchase!

Get 10% off on your first purchase by entering the promo code at the checkout!

SPRING10
Ronstan  |  SKU: IM-72397

Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]

Sale price $32.50 Regular price $38.24


Professional Insight

This product is offered through Inlet Marine Supply as part of our marine electrical catalog. Always verify compatibility with your vessel’s electrical system prior to purchase.

Professional installation is recommended to ensure safety, proper integration, and long-term reliability.

Need help installing this product?

Our service division, Inlet Marine Electric, provides professional marine electrical installation, upgrades, and troubleshooting in South Florida.

Schedule Installation

Description

Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head

Features:

  • Low friction 2-stage ball bearing system provides consistent performance over the full working load range.
  • High static and dynamic load capacity.
  • Light weight
  • Versatile head fittings

Product Information:

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.

Applications:

  • Primary lead blocks on dinghies and catamarans
  • Control lines on larger yachts

Materials:

  • U.V. stabilized Acetal sheaves
  • Acetal ball bearings
  • Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks
  • Grade 316 stainless steel load straps and head fittings

Payment & Security

Payment methods

  • PayPal
  • Venmo

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.