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TowerPro SG91R
Mini Discontinued

TowerPro SG91R

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-16
Identity
Brand TowerPro
Product Number (add)
Category Hobby
Discontinued Yes
Performance
Torque
4.8V25.00 oz-in
Speed
4.8V0.10 sec/60°
Running Current (add)
Stall Current (add)
Physical
Weight 0.32 oz
Dimensions L 0.91 in
W 0.48 in
H 1.14 in
Case Material (add)
Drivetrain
Motor Type (add)
Motor Drive (add)
Gears Plastic
Gear Spline/Teeth 21 T estimate
Shaft Size (add)
Rotation Mode (add)
Rotation/Support Bushing
Backlash (add)
Control & Signal
Modulation Analog
Direction (add)
Rotational Range (add)
Mechanical Limit (add)
Pulse Cycle (add)
Pulse Width (add)
Neutral Position (add)
Dead Band 10 µs
Refresh Rate (add)
Angle Sensor (add)
Control System PWM
Programmable No
Signal Voltage (add)
Electrical & Environment
Operating Voltage 4.8–6 V
Power Source (add)
Regulator Type (add)
Temperature 0–55 °C
Water Rating (add)
Certification RoHS
Idle Current (add)
Connectivity
Connector JR (Universal) estimate
Wire Length (add)
Origin
Country of Origin (add)

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Performance Analysis

Shaft Power 0.46 W
Torque Density2.7778 oz-in/g
4th-highest torque density of 67 Analog Mini servos
Torque-to-Volume Ratio50.21 oz-in/in³
Denser torque than 41% of the 67 Analog Mini servos in the database
Power Density0.928 W/in³
More power-dense than 62% of the 166 Analog Mini servos in the database
Speed-to-Weight1.11111 (1/sec·g)
1st-highest speed-to-weight of 67 Analog Mini servos
Speed-Torque Trade-off2.50
Better balanced than 15% of the 67 Analog Mini servos in the database
Voltage Range Width1.2 V
Wider voltage range than 57% of the 77 Analog Mini servos in the database

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