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JR S8955SS
Unknown

JR S8955SS

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10
Identity
Brand JR
Product Number T0077658
Category Hobby
Performance
Torque
8.4V 604.10 oz-in
7.4V 532.20 oz-in
6.6V 474.70 oz-in
Speed
8.4V 0.05 sec/60°
7.4V 0.06 sec/60°
6.6V 0.06 sec/60°
Physical
Weight 2.79 ozBelow Average
Dimensions L 1.38 in
W 0.79 in
H 1.59 in
Case Material Metal
Drivetrain
Motor Type Brushless
Gears Steel
Rotation Mode Positional
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 180°
Neutral Position 1500 µs
Control System PWM
Programmable Yes
Electrical & Environment
Operating Voltage 4.5–8.5 V
Connectivity
Connector JR (Universal)
Wire Length 300 mm

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.

Class Comparison

WeightBelow Average
Lighter than 17% of 84 Digital Unknown servos

Performance Analysis

Shaft Power 14.63–22.34 W
Power Density12.888 W/in³
3rd-highest power density of 34 Digital Unknown servos
Torque Density6.0089 oz-in/g
Torque-to-Volume Ratio273.85 oz-in/in³
Speed-to-Weight0.21097 (1/sec·g)
Speed-Torque Trade-off28.48
Voltage Range Width4.0 V
Wider voltage range than 73% of 46 Digital Unknown servos

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