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JR S87CYC
Standard

JR S87CYC

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-07-28
Identity
Brand JR
Category Hobby
Performance
Torque
8.4V 416.60 oz-in
7.4V 367.00 oz-in
6.6V 297.60 oz-in
Speed
8.4V 0.10 sec/60°
7.4V 0.11 sec/60°
6.6V 0.14 sec/60°
Physical
Weight 2.22 ozAverage
Dimensions L 1.575 in
W 0.787 in
H 1.547 in
Drivetrain
Motor Type Brushless
Gears Metal
Control & Signal
Modulation Digital
Rotational Range 180°
Control System PWM
Electrical & Environment
Operating Voltage 4.5–8.5 V
Connectivity
Connector JR (Universal) estimate

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

WeightAverage
Lighter than 49% of 1902 Digital Standard servos

Performance Analysis

Shaft Power 3.93–7.70 W
Power Density4.015 W/in³
More power-dense than 70% of 1759 Digital Standard servos
Torque Density4.7238 oz-in/g
Torque-to-Volume Ratio155.12 oz-in/in³
Speed-to-Weight0.11338 (1/sec·g)
Speed-Torque Trade-off41.66
Voltage Range Width4.0 V
Wider voltage range than 94% of 1539 Digital Standard servos

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