Harken USA shipping and receiving will be closed for physical inventory from 11:00 AM CST, Wednesday, September 28th through Friday, September 30th. Other departments will be available as usual. We will resume shipping and receiving orders on Monday, October 3rd.

mouseover to enlarge
150 mm Aluminum Block — Swivel 150 mm Aluminum Block — Swivel 150 mm Aluminum Block — Swivel
click thumbnail to select

150 mm Megayacht ULC

150 mm Aluminum Block — Swivel

Part No. HC8639
  Not available on-line. Please contact Harken.
Sheave Ø (mm)150 mm
Sheave Ø (in)5 15/16 in
Maximum line Ø (mm)25 mm
Maximum line Ø (in)1 in
Maximum working load (kg)8800 kg
Maximum working load (lb)19405 lb

Sideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads.

Sheave Ø (mm)150 mm
Sheave Ø (in)5 15/16 in
Weight (kg)3.511 kg
Weight (lb)7.74 lb
Length (mm)327 mm
Length (in)12 7/8 in
Maximum line Ø (mm)25 mm
Maximum line Ø (in)1 in
Maximum working load (kg)8800 kg
Maximum working load (lb)19405 lb
Breaking load (kg)17600 kg
Breaking load (lb)38810 lb
FootnoteMaximum working load limited by shackle. 
DWG: HC8639.DWG (open/save)
DXF: HC8639.DXF (open/save)
IGS: HC8639.IGS (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK