Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

Vendor: Ronstan
SKU: 110655
Availability: In stock
Product type: Blocks
$131.43
$154.63
$131.43
Subtotal: $131.43
Description  
Description
x

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.
Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

$154.63 $131.43
Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

Ronstan Series 25 Ball Bearing HHL Lashing Orbit Block [RF28109HL]

$154.63 $131.43

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