Ronstan Series 40 Ball Bearing Block - Single - Universal Head
SKU: 21219003834

Ronstan Series 40 Ball Bearing Block - Single - Universal Head

Sale price$29.80 Regular price$33.11
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  • USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Ronstan Series 40 Ball Bearing Block - Single - Universal HeadSeries 40 Ball Bearing Block Single Universal Head 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. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required. Features: Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Captive Lock

Series 40 Ball Bearing Block - Single - Universal Head

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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.

Features:
  • Low friction Acetal or Torlon® bearing system
  • Lightweight
  • Cheek cut-outs for easy bearing maintenance
  • Captive Lock™ universal head
  • Slotted pin shackle eliminates fouled lines


Applications:
  • Mainsheet
  • Halyard
  • Vang
  • Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')


Materials:
  • U.V. Stabilized Acetal sheaves
  • Acetal ball bearings
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel load strap and head fitting


Specifications:
Sheave Ø: 40mm(1-9/16")
Max. Rope Ø: 10mm(7/16")
Pin Ø: 5mm(3/16")
M.W.L.: 350kg(770lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 70g(2.5oz)

Manufacturer : Ronstan
Manufacturer Part No : RF40100
UPC : 9316800243891
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: 21219003834

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4.6 ★★★★★
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toolloot
Birmingham, US
★★★★★ 5
Great find
Color: Black
I had something in my sink to hold my washcloth but didn't like how it took up sink space. This was the perfect answers and now I can hang my washcloth on this and it hangs just enough over the sink so the drips stay in the sink. Also enough room for my scrub brush and sponge. Very happy with this purchase.
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Reviewed in the United States on April 30, 2026
M
Verified Purchase
MGS Va Beach
Omaha, US
★★★★★ 4
Good design, but stainless color is more like chrome
Color: Stainless Steel
Quality is good and design is nice. Knocked it down one start because the stainless is actually chrome/shiny, not what we wanted but again works well and looks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
E
Verified Purchase
Eileen
Grantham, US
★★★★★ 5
Love it!
Color: Black
Love this! Perfect size and design to clean up my sink clutter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
Verified Purchase
maria j. cruz
Belleville, US
★★★★★ 5
Sponge sink holder
Color: Stainless Steel, Color: Stainless Steel
Great buy ! Like how it’s sturdy & keeps my dish soap & other things organized. Well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
J
Verified Purchase
Joy
Waukegan, US
★★★★★ 5
Organization
Color: Black
Fits perfectly! Was the right size for dish soap & my sponges. Looks great helped me get organized 😎
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Reviewed in the United States on April 13, 2026

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