Robbe 16g BB

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-07-28

Identity
Brand
Product Number	8529
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 34.70 oz-in 4.8V 27.80 oz-in Below Average
Speed	6.0V 0.15 sec/60° 4.8V 0.17 sec/60° Below Average
Physical
Weight	0.56 ozAbove Average
Dimensions	L 1.10 in W 0.51 in H 1.30 in
Drivetrain
Gears	Plastic
Gear Spline/Teeth	25 T estimate
Rotation/Support	Single Bearing
Control & Signal
Modulation	Analog
Control System	PWM
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate

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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

*Spec is estimated from brand data.

Class Comparison

Torque	Below Average Stronger than 22% of 80 Analog Mini servos at 4.8V
Speed	Below Average Faster than 18% of 81 Analog Mini servos at 4.8V
Weight	Above Average Lighter than 82% of 165 Analog Mini servos

Performance Analysis

Shaft Power	0.30–0.43 W
Power Density	0.586 W/in³ More power-dense than 25% of 163 Analog Mini servos
Torque Density	1.7375 oz-in/g Stronger than 34% of 80 Analog Mini servos
Torque-to-Volume Ratio	38.12 oz-in/in³ Denser torque than 19% of 80 Analog Mini servos
Speed-to-Weight	0.36765 (1/sec·g) Faster than 48% of 81 Analog Mini servos
Speed-Torque Trade-off	4.73 Better balanced than 43% of 80 Analog Mini servos
Torque Gain per Volt	20.68%/V 4th-highest torque gain per volt of 55 Analog Mini servos
Speed Gain per Volt	11.12%/V More voltage-responsive (speed) than 13% of 56 Analog Mini servos
Voltage Range Width	1.2 V Wider voltage range than 63% of 88 Analog Mini servos