Power HD WB-120KG HV Aluminium Large Scale Servo - 120kg 0.10s

The Power HD WB-120KG (part number HD-WB-120KG) is a high-voltage, large-scale brushless servo engineered for extreme torque and fast response. With an aluminium case for rigidity and heat dissipation, steel gears for durability, and a 15T output spline, it is designed to deliver dependable performance in demanding RC applications.

This HV servo is powered via a 4S balance lead and operates from 12.6–16.8V DC, producing up to 120.0 kg-cm of torque and speeds down to 0.10s. A 333 Hz working frequency and precise 1520 μs pulse width support smooth, accurate control. Despite its high output, the servo maintains a compact large-scale footprint and robust build quality.

Key Specifications

• Motor type: Brushless
• Gear type: Steel
• Case: Aluminium
• Horn gear spline: 15T
• Operating voltage: 12.6–16.8V DC
• Max current: 8A
• Working frequency: 1520 μs / 333 Hz
• Operating temperature: -10℃ to 60℃
• Power connection: Fitted with two plugs; use the 4S balance lead for 12.6–16.8V input
• Size: 59.5 x 29.5 x 54.4 mm
• Weight: 212 g

Performance Ratings

• Torque (6.0V): 36.0 kg-cm (499.9 oz-in)
• Torque (7.4V): 42.0 kg-cm (583.3 oz-in)
• Torque (8.4V): 50.0 kg-cm (694.4 oz-in)
• Torque (12.6V): 80.0 kg-cm (1111.0 oz-in)
• Torque (14.8V): 98.0 kg-cm (1360.9 oz-in)
• Torque (16.8V): 120.0 kg-cm (1666.5 oz-in)
• Speed: 0.14s (12.6V) | 0.12s (14.8V) | 0.10s (16.8V)

Suggested Compatibility

• Suggested compatibility: large-scale RC models requiring very high torque and robust control, such as heavy-duty steering or throttle/brake applications.