TowerPro MG91

Search Amazon Search eBay

Compatible Hardware

Amazon eBay

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-08

Identity
Brand
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 36.11 oz-in 4.8V 30.55 oz-in Average
Speed	6.0V 0.11 sec/60° 4.8V 0.13 sec/60° Below Average
Physical
Weight	0.46 ozBelow Average
Dimensions	L 0.898 in W 0.472 in H 1.22 in
Case Material	Metal
Drivetrain
Gears	Metal
Rotation Mode	Positional
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Rotational Range	165°
Pulse Cycle	1 ms
Dead Band	1 µs
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6.6 V
Temperature	0–55 °C
Connectivity
Connector	JR (Universal)
Wire Length	250 mm
Origin
Country of Origin	Taiwan

Submit Missing Data Report an Error

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.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 59% of 328 Digital Micro servos at 4.8V
Speed	Below Average Faster than 32% of 328 Digital Micro servos at 4.8V
Weight	Below Average Lighter than 34% of 620 Digital Micro servos

Performance Analysis

Shaft Power	0.43–0.61 W
Power Density	1.174 W/in³ More power-dense than 24% of 590 Digital Micro servos
Torque Density	2.3500 oz-in/g Stronger than 48% of 327 Digital Micro servos
Torque-to-Volume Ratio	59.08 oz-in/in³ Denser torque than 33% of 327 Digital Micro servos
Speed-to-Weight	0.59172 (1/sec·g) Faster than 29% of 327 Digital Micro servos
Speed-Torque Trade-off	3.97 Better balanced than 67% of 327 Digital Micro servos
Voltage Range Width	1.8 V Wider voltage range than 50% of 511 Digital Micro servos