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Description
Ronstan Series 40 Stand up BlockProduct Description Ronstan Series 40 Stand Up Block Features Low friction Acetal or Torlon bearing system Lightweight Cheek cut outs for easy bearing maintenance Captive Lock universal head Low friction, 2 stage ball bearing system Slotted pin shackle eliminates fouled lines High static and dynamic load capacity Sheave 1 9 16 in. Max. Rope 3 8 in. Max. Cable Pin M. W. L. 770 lb B. L. 1760 lb Weight 2. 5 oz. Product Information Sheaves running on
Product Description
Ronstan Series 40 Stand-Up Block
Features
Low friction Acetal or Torlon bearing system
Lightweight
Cheek cut-outs for easy bearing maintenance
Captive Lock universal head
Low friction, 2-stage ball bearing system
Slotted pin shackle eliminates fouled lines
High static and dynamic load capacity
Sheave 1 9/16 in.
Max. Rope Ø - 3/8 in.
Max. Cable Ø - -
Pin Ø - -
M.W.L. 770 lb
B.L. 1760 lb
Weight - 2.5 oz.
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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications
Mainsheet
Halyard
Vang
Spinnaker control lines on off-the-beach catamarans, one design classes and sports boats up to 8m 926 ft)
Materials
Acetal ball bearings
UV stabilized Acetal sheave
Grade 316 stainless steel load strap and head fitting
Impact and UV resistant, fibre reinforced Nylon cheeks
Features
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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications
Materials
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Great for small projects. Nice fit.
I purchased this set while building a couple of end tables. They fit like a glove and it's really nice that they come with the hole saw bit. It's a great set for what you get.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
My desk looks organized
Works great
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Includes everything you need and a bonus to get the cord wrap
I bought this to route the cords up to the monitor on a height-adjustable desk. The top of the desk is an inch thick, and this was easy to drill through. To make sure I got a clean cut and did not damage the top, I put painters' tape on the area where I wanted to cut and drilled a small starter hole to get it exactly in the right spot. It cut a really clean hole from the top, and the plastic insert fit perfectly.
Once I got the hole cut and the wires run where I wanted them, I put the cord wrap on. The tool that comes with the cord wrap is really slick and super easy to use. I was able to bundle together three cords that hang off the side of the desk. Given that the desk is adjustable, it was a nice bonus to get the cord manager with the kit, as it keeps the cords from getting hung up in the desk when adjusting it.
I'm very happy with the purchase, great price.
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Reviewed in the United States on December 14, 2025
★★★★★ 4
Good product
The hole covers are great. As far as the hole cutting bit. Not so much. But still worth the price.
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Reviewed in the United States on October 26, 2025
★★★★★ 5
Good tool
Easy to use. Worked perfectly.
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Reviewed in the United States on October 4, 2025