We Ship Worldwide! Shipping information.

Harken Sheave - Big Boat - Sheave Dia: 7.0 in (178.0 mm)

SKU: HAR520  |  Manuf. Code: 520
List Price:  $1,437.95 USD
$1,265.95 USD
12% off, you save $172
Chat with our Tech Team Questions? Chat with our Tech Team
Backed by MAURIPRO Support Backed by MAURIPRO Support.
Simple 30-Day Returns Simple 30-Day Returns.
Simple 30-Day Returns

We offer returns within 30 days of delivery for your peace of mind.

  • 0–15 days: Free returns or exchanges
  • 16–30 days: Returns accepted with a 20% restocking fee
  • Returns after 30 days are not accepted.
  • Request a Return Authorization (RA#) prior to shipping.
  • Return shipping is the customer’s responsibility.
Price Match Guarantee Price Match Guarantee
Our Best Price Guarantee
  • We Price Match against authorized dealers only, based on the total order cost (product + shipping).
  • No auction sites
  • No unauthorized sellers
  • Item must be identical, new, and in stock

Found it cheaper? Chat with us to request a Price Match.

DESCRIPTION

Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection.

Delrin® is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Our Part # HAR520 | Mfr. Part # 520

FEATURES

  • Big boat sheave for heavy loads.
  • Diameter: 7.0 inches (178 mm).
  • High-strength composite material.
  • Low friction operation.

TECHNICAL INFORMATION
DescriptionImperialMetric
Sheave7 in178 mm
Width1 1/8 in29 mm
Weight45 oz1280 g
Center Pin1 1/2 in38 mm
Fasteners1/2 in12 mm
Fastener Circle2 1/2 in64 mm
Maximum Line7/8 in22 mm
Maximum working load14000 lb6349 kg
Breaking Load28000 lb12698 kg