Ronstan Series 40 Ball Bearing Block - Single Upright Lead
SKU: 47039014454

Ronstan Series 40 Ball Bearing Block - Single Upright Lead

Sale price$51.21 Regular price$56.90
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  • USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Ronstan Series 40 Ball Bearing Block - Single Upright LeadSeries 40 Ball Bearing Block Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal 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. Applications: Typically used for halyards at the mast base. Materials: Acetal ball

Series 40 Ball Bearing Block - Single Upright Lead

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal 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.

Applications:

  • Typically used for halyards at the mast base.

Materials:

  • Acetal ball bearings
  • UV stabilized Acetal sheave
  • Grade 316 stainless steel load housing

Manufacturer : Ronstan
Manufacturer Part No : RF40171
UPC : 9316800244249
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47039014454

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Based on 2447 reviews
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christine Ziehm Gesicki
Phoenix, US
★★★★★ 5
Big box at a great price!
Color: Pink, Size: 5 Drawer
Was able to replace my old pink jewelry boxes and consolidate for my rose quartz and other pink stones!
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Reviewed in the United States on April 3, 2026
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Marilyn Snell
Chelsea, US
★★★★★ 5
Easy to see your jewelry, stays organized, takes up less room than a stand up box
Color: White, Size: 3 Drawer
This is so convenient. My jewelry is actually useable now. I can find what I’m looking for quickly. I loved this
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Reviewed in the United States on January 28, 2026
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Brandon
Draper, US
★★★★★ 5
Great Tray For Storing My Everyday Carries
Size: 8.5" x 5.8" x 1.9", Color: Black
My everyday carry items (wallet, keys, etc.), used to just get thrown around wherever when I'd get home, but this little tray makes a great, defined, space for me to keep those things when I don't need them on me. The soft lining reduces the obnoxious sound of throwing keys on a hard surface, and of course keeps me from scratching up a surface. The build feels quality and I haven't seen any damage to it yet. Also the all black version with gold buckle looks quite good and adds a subtle touch of luxury. Absolute recommend for the price.
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Reviewed in the United States on April 15, 2026
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Verified Purchase
David Jordan
Massapequa, US
★★★★★ 5
Just the right size to empty your pockets.
Size: 8.5" x 5.8" x 1.9", Color: Orange
Perfect size to empty my pockets when I get home. Fits my wallet, keys, AirPods, etc. excellent quality.
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Reviewed in the United States on March 21, 2026
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Pilot Wife
Belleville, US
★★★★★ 5
Nice and classy
Size: 8.5" x 5.8" x 1.9", Color: Black
Bought this for my husband for Christmas and he loved it. Super classy elegant well made box. Perfect for bedside nightstand for your watch and rings.
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Reviewed in the United States on December 4, 2025

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