SKU: 19931343862

Ronstan Series 40 All Purpose Block - Single Cheek

Sale price$80.22 Regular price$89.13
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Ronstan Series 40 All Purpose Block - Single CheekSeries 40 All Purpose Block Single Cheek Features: Exceptionally high working loads Low maintenance, long service life Self lubricating sheave All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control

Series 40 All Purpose Block - Single Cheek

Features:

  • Exceptionally high working loads
  • Low maintenance, long service life
  • Self-lubricating sheave

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave. Stackable with Ronstan Series 40 deck organizers.

Applications:

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

Materials:

  • U.V. stabilised Acetal sheaves
  • Impact and U.V. resistant, fiber reinforced Nylon cheeks
  • Grade 316 stainless steel bearing race
  • Alloy cheek plates

Manufacturer : Ronstan
Manufacturer Part No : RF41811
UPC : 9316800341795
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: 19931343862

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Ame
Natrona Heights, US
★★★★★ 5
Best beanie!
This was a Christmas gift and the receiver loved it! It was just what he wanted! Cashmere is always the best choice for comfort, softness, wearability and durability!
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Reviewed in the United States on January 18, 2026
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Amazon Customer
Natrona Heights, US
★★★★★ 4
Great value
Good quality at a great price
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Reviewed in the United States on February 3, 2025
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Lucas Secoy
Carnegie, US
★★★★★ 5
Cashmere dream
Just arrived today. Very soft, light and warm. Fits comfortably without being tight. This hat is really well made and it far exceeds the price point it’s sold at.
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Reviewed in the United States on November 20, 2025
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Susan H. Chinchar
Draper, US
★★★★★ 5
Love perfect fit..doesn't move up and super soft
Love this hat! Gift for my nephew. He has had it stolen by others since it is perfect fit and super soft.
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Reviewed in the United States on February 5, 2026
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龍気
Alexandria, US
★★★★★ 5
Perfection in the form of a hat.
Best hat ever! It’s perfect in every way, fits right to your head like a skully cap should. It’s not too thick or thin for a chilly winter in the mountain forest, I wore it to sleep a few times, doesn’t seem to make me too hot.
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Reviewed in the United States on February 4, 2026

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