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Racing Winch 50

Racing Winch 50

  • Self-tailing
  • 2- & 3-speed versions
  • Aluminum & carbon fiber

Harken’s 50.3STR is the smallest three-speed direct drive self-tailing winch in the industry. Winches feature carbon skirts and tops, aluminum drums, and strong composite jaws with one-piece sculpted line guide and peeler. PEEK roller bearings are low-maintenance, reliable, and efficient. They ride in large-diameter cages, allowing more bearings to carry the load. Stainless steel drive gears are strong and durable. If class rules dictate, winches are also available in all-aluminum with stainless steel gears.

Complete customization

Options include self-tailing arms and left-handed rotation. Base riser required to mount B50 winches above deck. Specify above deck or flush deck version when ordering.

Power ratios

Carbon winches come with up to three speeds. Harken’s 50.3STR is the smallest three-speed direct drive self-tailing winch in the industry.

Self-tailing

The self-tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails.

B50.2STR B50.3STR
Configuration Self-tailing Self-tailing
Speed 2 3
Drum Ø (mm) 116 mm 116 mm
Drum Ø (in) 4 9/16 in 4 9/16 in
Base Ø (mm) 184 mm 184 mm
Base Ø (in) 7 1/4 in 7 1/4 in
Height (mm) 168 mm 175 mm
Height (in) 6 5/8 in 6 7/8 in
Weight (kg) 5.3 kg 6.2 kg
Weight (lb) 11.7 lb 13.7 lb
Line entry height (mm) 65 mm 65 mm
Line entry height (in) 2 9/16 in 2 9/16 in
Minimum line Ø (mm) 5 mm 5 mm
Minimum line Ø (in) 3/16 in 3/16 in
Maximum line Ø (mm) 10 mm 10 mm
Maximum line Ø (in) 3/8 in 3/8 in
Fastener circle (mm) 164 mm 164 mm
Fastener circle (in) 6 15/32 in 6 15/32 in
Fasteners (mm) 8 FH mm 8 FH mm
Fasteners (in) 5/16 FH in 5/16 FH in
Number of fasteners 6 6
Gear ratio - 1 2.7:1 1:1
Gear ratio - 2 11.4:1 2.7:1
Power ratio - 1 11.7:1 4.4:1
Power ratio - 2 50.7:1 11.7:1
Gear ratio - 3 - 11.4:1
Power ratio - 3 - 49.8:1