SRT Servos BH125W HV Digital Brushless Servo - SRTBH125W

Massive steering power meets high-voltage brushless speed in a purpose-built large-scale package.

Engineered for demanding 1/5 and 1/6 scale on-road and off-road applications, the SRT Servos BH125W delivers relentless control under extreme loads. Built with an all-metal CNC machined aluminum case and integrated metal mounting tabs, this high-voltage servo provides rigidity and thermal dissipation when pushing heavy rigs hard.

Inside, a brushless motor drives a tough steel gear train supported by dual bearings, providing rapid transit speeds down to 0.085 seconds and a massive 1735.9 oz-in of holding torque at 8.4V. A waterproof design and removable lead wires make maintenance and custom chassis routing clean and straightforward.

Why You'll Love It

• Extreme High-Voltage Output: Generates up to 1735.9 oz-in (125.0 kg-cm) of stall torque and a blistering 0.085-second transit speed at 8.4V.
• Steel Gear Strength: Precision steel gears and dual ball bearings handle punishing steering loads without stripping or slop.
• CNC Machined Aluminum Case: Full metal casing sheds motor heat quickly while rigid metal mounting tabs eliminate flex under full steering deflection.
• Modular Wiring: Detachable JR lead wire allows simple wire replacement and clean installation in custom chassis layouts.

Specifications

• Servo Type: Digital
• Motor Type: Brushless
• Gear Material: Steel
• Bearing: Dual ball bearing
• Operating Voltage: DC 6.0V to 8.4V
• Speed (6.0V): 0.12 sec/60 deg (no load)
• Speed (7.4V): 0.11 sec/60 deg (no load)
• Speed (8.4V): 0.085 sec/60 deg (no load)
• Torque (6.0V): 1249.9 oz-in (90.0 kg-cm)
• Torque (7.4V): 1527.6 oz-in (110.0 kg-cm)
• Torque (8.4V): 1735.9 oz-in (125.0 kg-cm)
• Dimensions: 59.5 x 29.5 x 54.5 mm (2.34 x 1.16 x 2.15 in)
• Weight: 209.0 g (7.37 oz)
• Spline / Output Shaft: 15T
• Dead Band: 2 usec
• Lead Length: 350 mm (JR connector)
• Max Current Draw: 9.5A at 6.0V, 11.5A at 7.4V, 13A at 8.4V
• Waterproof: Yes

Note: This servo features a 15T output shaft and can draw up to 13A under locked-rotor conditions at 8.4V. Ensure your receiver power supply or external BEC can deliver sufficient peak amperage to prevent brownouts.