Hitec HS 765HB Sail Arm: Universal

The HS-765HB sail arm servo has up to 140 degrees of travel and comes with a Heavy Duty 4.5 inch arm. With its dual ball bearing supported output shaft the HS-765HB will provide years of reliable service for your R/C sailing applications to 2 meters. Features: • Up to 140 degrees of travel • 4.5 inch arm • Dual Ball Bearing Supported Output Shaft • *** Warning: Do not use thread lockers on Karbonite geared servo as it will cause the output shaft to fail