SKU: 45507727617

Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block

Sale price$81.86 Regular price$90.95
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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7

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Description

Ronstan Series 25 Ball Bearing HHL Lashing Orbit BlockSeries 25 Ball Bearing HHL Lashing Orbit Block Single sheave ball bearing high load block with becket hub option and lashing head. The Series 25 Ball Bearing Orbit Blocks deliver superior strength, reduced weight, and exceptional performance for high demand dinghy and small boat applications. Designed with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength to weight

Series 25 Ball Bearing HHL Lashing Orbit Block™

Single sheave ball bearing high load block with becket hub option and lashing head.

The Series 25 Ball Bearing Orbit Blocks™ deliver superior strength, reduced weight, and exceptional performance for high-demand dinghy and small boat applications.

Designed with competitive sailors and performance boats in mind, these compact 25mm blocks are engineered to achieve the highest possible strength-to-weight ratio. Featuring Ronstan’s renowned high-compression strength acetal bearing system, the Series 25 BB Orbit Blocks are a lightweight yet durable solution, ideal for control line systems such as mainsheet and spinnaker sheet turning blocks, cunninghams, and cascading vangs on dinghies up to 4 metres.

Each block has a stainless steel hub for versatile lashing attachments and through-sheave becket functionality, making them adaptable to a wide range of rigging setups. The hub accommodates up to 4mm (5/32") lashing and ensures maximum efficiency without compromising reliability.

The range also includes a High Load (HHL) variant – the RF28109HL – which is equipped with a Grade 2205 stainless steel sheave and bearing race, paired with Grade 304 stainless steel ball bearings. These HHL blocks are purpose-built for high-load applications and are increasingly in demand for modern performance and foiling boats using small-diameter lines to carry significant loads.

Features:

  • 2-stage ball bearing system.
  • Suits up to 8mm (5/16”) lines.
  • Hollow hub for becket take-off.
  • Lashing blocks suit up to 4mm (5/32”) lashing.

Specifications:

  • Max. Rope diameter (in): 5/16
  • M.W.L. (lb): 880
  • Sheave diameter (in): 1
  • B.L. (lb): 2650
  • Weight (oz): 1.2

Applications:

  • Mainsheet and spinnaker sheet turning blocks on dinghies to 4m (13ft). 
  • Control lines.
  • Cascading vangs.
  • Leech lines & cunninghams.

Materials:

  • Frame/cheeks: Toughened, glass fibre reinforced nylon.  
  • HHL Sheave and bearing race: Grade 2205 stainless steel with Grade 304 stainless steel ball bearings.
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: 45507727617

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4.8 ★★★★★
Based on 6 reviews
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Yuneysi Sarmiento
Houston, US
★★★★★ 5
I used them to divide a space in my house and it really turned out spectacular.
Size: 4 Panel-88‘’Wide, Color: Black, Size: 4 Panel-88‘’Wide, Color: Black
I used them to divide a space in my house and it really turned out spectacular.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
S
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Sandra S
Lowell, US
★★★★★ 3
Perfect size, good privacy
Size: 4 Panel-88‘’Wide, Color: Black
This is a good divider. The dark, thick panels provide blockage from the light. Assembly was not very hard, but it wasn't simple. I ordered this product two times in the past couple of weeks. The first time I assembled it, I noticed that the picture assembly directions aren't completely accurate. The labeled parts don't match the labels on the instructions. The wrench included in my box is too big for any of the bolts or screws used for assembly. After getting the right tools and matching against the instructions, I finally got it assembled. The divider I ordered this week is missing two wheels and there is no number for calling the supplier; thus, I seem forced to return it, instead of easily getting the two wheels. Once assembled, I am pleased with the end product and I consider it a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2024
J
Verified Purchase
Joseph boodoo
Pawtucket, US
★★★★★ 5
Good but missing canopy
Size: 4 Panel-88‘’Wide, Color: Black
But I still haven’t recieved my canopy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
E
Verified Purchase
884EVER
Whiting, US
★★★★★ 5
Great privacy screen
Size: 4 Panel-88"W, Color: Grey
Nice item, easy to assemble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
C
Verified Purchase
cara
Louisville, US
★★★★★ 5
Great privacy screen
Size: 6 Panel-119"W, Color: Beige
I have a studio apartment and the bathroom is in my bedroom. I bought this to section the area off so guests can use my bathroom without seeing my entire bedroom. This is perfect for that! It looks very nice and offers alot of privacy. The screen is fabric and good quality! I’m a middle aged woman and put it together myself in about 2 hours. Love this!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025

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