Our Location: 2021 Alaska Packer Place At Grand Marina Alameda, CA 94501

RONSTAN Core Blocks, Series 60, Single Standup Block

Blue Pelican Marine is committed to your satisfaction as a customer. Therefore we ask If there are any questions or problems with your purchase, please contact us BEFORE  leaving any feedback at (510) 769-4858  and we will make every effort to resolve any issues you may have .  

RONSTAN
Core Blocks, Series 60, Single Standup Block

Use them anywhere: Core Blocks™ are a true all-around solution. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.

Universal Bearing: A tuned two-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high-dynamic or static loads.

Stage 1: Under moderate loads, Acetal ball bearings ensure minimum friction.
Stage 2: Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless race takes over. The ball bearings act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect.

Alloy cheek plates for maximum strength. Cut-away design minimizes weight and allows freshwater rinsing of salt and debris from the bearings. Flared cheek design at the block throat and reduced gap between the cheek and sheave minimizes rope wear.

Universal Head: brass bearing washer in head assembly provides smooth 360° rotation of post and shackle. A setscrew arrangement locks head position at 0° or 90°. Shackles are forged grade 316 stainless steel. Removable becket pins allow connection of pre-spliced lines. The flush-fit becket pin head is kind on deck surfaces and won’t snag lines.

Fully Articulated Stand-Up: Stand-up models have low-profile linkage providing full rotation and articulation. A high-strength precision cast pad eye minimizes the footprint.

  • Sheave: UV-stabilized Acetal
  • Bearings: 2-stage bearing system
  • Cheek Material/Finish: Aluminum alloy
  • Shackle/Strap Type: Grade 316 stainless steel
  • MWL(lb.): 2,200
  • Weight(oz.): 13.2
  • Max. Line Size: 1/2"
 
 
 
 
BPM#1958-7
The Blue Pelican
Looking for used boat parts?  You've come to the right place.  We are a Sailor's Marine Consignment Chandlery serving the San Francisco Bay Area located at Grand Marina in Alameda, California.  Our new and gently used marine equipment inventory will outfit sailors of all experience levels and interests.  Our prices are very affordable and selection is impressive.
Our listings may be concurrently shown on our show room floor, we reserve the right to end a listing early due to a customer buying at our physical location.
We offer returns with a return authorization.  Before shipping back your item please send email to Blue Pelican Marine through EBAY describing in detail the problem with the item and the reason for the return.  We will refund the purchase prices less shipping.  Customers are responsible for return shipping charges.  

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