JR DS285

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*Based on known specs.

Technical Specifications

Last Updated: 2026-09-16

Identity
Brand
Product Number	JRPS285
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 19.00 oz-in 4.8V 17.00 oz-in Below Average
Speed	6.0V 0.14 sec/60° 4.8V 0.18 sec/60° Bottom 10%
Physical
Weight	0.32 ozAverage
Dimensions	L 0.87 in W 0.45 in H 0.85 in
Drivetrain
Motor Type	3-pole
Gears	Plastic
Rotation Mode	Positional
Rotation/Support	Bushing
Control & Signal
Modulation	Digital
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal)

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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	Below Average Stronger than 17% of 349 Digital Micro servos at 4.8V
Speed	Bottom 10% Faster than 9% of 347 Digital Micro servos at 4.8V
Weight	Average Lighter than 62% of 597 Digital Micro servos

Performance Analysis

Shaft Power	0.17–0.25 W
Power Density	0.754 W/in³ More power-dense than 8% of 563 Digital Micro servos
Torque Density	1.8681 oz-in/g Stronger than 23% of 349 Digital Micro servos
Torque-to-Volume Ratio	51.09 oz-in/in³ Denser torque than 18% of 345 Digital Micro servos
Speed-to-Weight	0.61050 (1/sec·g) Faster than 35% of 347 Digital Micro servos
Speed-Torque Trade-off	3.06 Better balanced than 43% of 345 Digital Micro servos
Torque Gain per Volt	9.80%/V More voltage-responsive (torque) than 12% of 290 Digital Micro servos
Speed Gain per Volt	23.83%/V More voltage-responsive (speed) than 80% of 295 Digital Micro servos
Voltage Range Width	1.2 V Wider voltage range than 41% of 496 Digital Micro servos