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Allen Brothers  |  SKU: ALNA4101

Allen Brothers 30mm Single Dynamic Block - Upstand

Sale
Sale price $67.70 Regular price $71.04

Availability: Please contact us to confirm availability or discuss item replacements. Please note that certain products may have an estimated arrival time of 30 days and are not available for expedited shipping.


Pickup available at 1830 East Interstate 30

Usually ready in 24 hours

DELIVERY AND RETURN INFO

Allen Brothers 30mm Single Dynamic Upstand Block

The 30mm Upstand Block is a low-profile solution for redirecting lines to cleats and jammers. Commonly used as a foot block or lead block, it is ideal for leading halyards from the mast base towards the cockpit or redirecting mainsheet traveller lines along the cockpit side.

Features

  • Low-profile design for clean and efficient line routing
  • Ideal for halyards, traveller lines, and other control line applications
  • Suitable for use at mast bases, cockpits, and deck layouts
  • Dynamic Bearing System featuring twin rows of stainless-steel ball bearings running on a stainless-steel axle
  • Delivers smooth, low-friction operation and fast rolling speeds
  • Superior durability and performance compared to plastic bearing alternatives
  • Designed for reliable line control in demanding marine environments

Technical Description

Accessories Upstand
Bearing Type Dynamic
Breaking Load 850 kg
Configuration Single
Hole Pitch 25 mm
Length 45 mm
Sheave Diameter 30 mm
Maximum Line Diameter 8 mm
Maximum Working Load 140 kg
Sheave Material Acetal
Weight 59 g
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