Power HD B2S HV Brushless Servo

The Power HD B2S HV Brushless Servo (HD-B2S) is a standard-size, high-voltage digital servo designed for fast response and robust torque delivery. It combines a brushless motor with an aluminium heatsink case, a titanium and steel gear train, and dual ball bearings for smooth, durable performance. The B2S supports SSR, SUR, SXR, SR and SFR modes and operates across 6.0–8.4 V.

Performance scales with input voltage: torque ranges from 38.0 kg-cm at 6.0 V to 50.0 kg-cm at 8.4 V, while transit speed reaches 0.10 sec at 8.4 V. Its compact, standard-size footprint (41.0 x 20.5 x 38.3 mm) makes installation straightforward where a conventional servo form factor is required.

Key Features

• Standard-size HV brushless digital servo
• Aluminium heatsink case for thermal efficiency
• Titanium & steel gear train
• Dual ball bearings
• Mode support: SSR, SUR, SXR, SR, SFR

Performance & Specifications

• Torque: 38.0 kg-cm (6.0 V) | 45.0 kg-cm (7.4 V) | 50.0 kg-cm (8.4 V)
• Speed: 0.15 sec (6.0 V) | 0.12 sec (7.4 V) | 0.10 sec (8.4 V)
• Operating voltage: 6.0–8.4 V DC
• Weight: 67.0 g
• Bearing type: Ball bearing x 2
• Motor type: Brushless motor
• Gear type: Titanium & steel
• Operating temperature: -20℃ to 60℃
• Working frequency: 1520μs / 333hz
• Size: 41.0 x 20.5 x 38.3 mm