19KG Low Profile Servo and A73BHLW 40KG Waterproof Brushless RC Servo

A50BHL Feature High Performance Low Profile Digital Servo High Precision Steel Gear High Quality Brushless Motor Reliable Dual Ball Bearing High Voltage Compatible Programmable Digital Circuit Aluminium Top and Middium Part Ideal for 1/10, 1/12 On Road, Touring, Drifting, Airplane, Boat, Robot etc. A50BHL Specification Item: A50BHL Operating Voltage: 4.8-8.4 V Operating speed: 0.095sec/60° @ 6.0V Operating speed: 0.083sec/60° @ 7.4V Operating speed: 0.073sec/60° @ 8.4V Stall Torque: 16 kg-cm (222 oz-in) @ 6.0V Stall Torque: 18 kg-cm (250 oz-in) @ 7.4V Stall Torque: 19 kg-cm (264 oz-in) @ 8.4V Gear: Steel Motor: BLS Size: 40.8*20.2*26.5mm (1.60 x 0.79 x 1.04 in) Weight: 51g Connector Wire: JR 180 mm A73BHLW Feature High Performance Standard Digital Servo Fast Cooling Aluminum Case Reliable Metal Gears High Strength Dual Ball Bearings Fully Waterproof IP67 High Precision Magnetic Angular Position Sensor High Quality High Efficiency Longer Lifetime Brusheless Motor Ideal for 1/10 Rock Crawler, Buggy, Truck, Boat, Airplane, Helicopter and Engine etc. A73BHLW Specification Operating Voltage: 4.8-8.4V Operating speed: 0.123sec/60° @ 6.0V Operating speed: 0.110sec/60° @ 7.4V Operating speed: 0.100sec/60° @ 8.4V Stall Torque: 29 kg-cm (403 oz-in) @ 6.0V Stall Torque: 35 kg-cm (486 oz-in) @ 7.4V Stall Torque: 40 kg-cm (556 oz-in) @ 8.4V Gear: Steel Motor: Brushless Size: 40*20*37.5mm (1.57 x 0.78 x 1.47 in) Weight: 73.5g Connector Wire: JR 300 mm /22AWG