.The radial winch drums gripping surface is shaped for each winch size and drum material and features diagonal ribs (rather than textured abrasive materials) to maximize gripping power and greatly reduce line wear. The self-tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails.

MaterialAluminum
ConfigurationSelf-tailing
Speed1
Drum Ø (mm)73 mm
Drum Ø (in)2 7/8 in
Base Ø (mm)137 mm
Base Ø (in)5 3/8 in
Height (mm)148 mm
Height (in)5 13/16 in
Weight (kg)2.4 kg
Weight (lb)5.3 lb
Line entry height (mm)61 mm
Line entry height (in)2 3/8 in
Minimum line Ø (mm)6 mm
Minimum line Ø (in)1/4 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in)1/2 in
Fastener circle (mm)110 mm
Fastener circle (in)4 3/8 in
Fasteners (mm)6 SH mm
Fasteners (in)1/4 SH in
Number of fasteners5
Gear ratio - 12.76
Power ratio - 119.20
Available powerManual
.The Radial winch drum’s gripping surface is shaped for each winch size and drum material and features diagonal ribs (rather than textured abrasive materials) to maximize gripping power and greatly reduce line wear
.The self-tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails
.MaterialAluminum ConfigurationSelf-tailing
.Fastener circle (mm)110 mm Fasteners (mm) Number of fasteners56 SH mm
.Gear ratio - 12.76 Power ratio - 119.20

Harken Winch: Radial Self-Tailing Size 20 - Aluminum Single Speed