Control System: +Pulse Width Control 1500usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8-6.0 Volts
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): 0.21sec/60° at no load
Operating Speed (6.0V): 0.16sec/60° at no load
Stall Torque (4.8V): 45.82 oz/in. (3.3kg.cm)
Stall Torque (6.0V): 56.93 oz/in. (4.1kg.cm)
Operating Angle: 45 Deg. one side pulse traveling 400usec
Continuous Rotation Modifiable: Yes
Direction: Clockwise/Pulse Traveling 1500 to 1900usec
Current Drain (4.8V): 8mA/idle and 150mA no load operating
Current Drain (6.0V): 8.8mA/idle and 180mA no load operating
Dead Band Width: 8usec
Motor Type: 3 Pole Ferrite
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearing
Gear Type: Nylon
Connector Wire Length: 11.81" (300mm)
Dimensions: See Schematics
Weight: 1.6oz (45.5g)
Detailed Specifications
The HS-425BB is the best standard servo under $13. We love this servo for robotic projects because it is easy to modify for wheeled applications and it comes with dual ball bearings so it operates extremely smooth. We offer the HS-425BB in several configurations, 90° stock rotation, 180° modified rotation, continuous rotation (potentiometer is left outside the servo case) and reverse rotation.
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57 oz-in. |
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0.16 sec/60° |


A = .780” (19.82mm)
B = .530” (13.47mm)
C = 1.33” (33.79mm)
D = .400” (10.17mm)
E = .380” (9.66mm)
F = 1.19” (30.22mm)
G = .460” (11.68mm)
H = 1.05” (26.67mm)
J = 2.08” (52.84mm)
K = .368” (9.35mm)
L = .172” (4.38mm)
M = 1.57” (39.88mm)
X = .120” (3.05mm)


Uses C1 Standard Spline

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