ServoKing BLS-6853

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Technical Specifications

Last Updated: 2026-07-10

Identity
Brand	ServoKing
Product Number	0S2685
Category	Hobby
Performance
Torque	8.4V 406.98 oz-in 7.4V 384.75 oz-in 6.0V 316.69 oz-in Above Average
Speed	8.4V 0.09 sec/60° 7.4V 0.10 sec/60° 6.0V 0.15 sec/60° Average
Physical
Weight	2.29 ozAverage
Dimensions	L 1.457 in W 0.787 in H 1.575 in
Case Material	Aluminium
Drivetrain
Motor Type	Brushless
Gears	Metal
Control & Signal
Modulation	Digital
Neutral Position	1520 µs
Refresh Rate	333 Hz
Electrical & Environment
Operating Voltage	6–8.4 V
Origin
Country of Origin	Taiwan

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*Based on known specs.

Class Comparison

Torque	Above Average Stronger than 69% of 1043 Digital Standard servos at 6.0V
Speed	Average Faster than 43% of 1041 Digital Standard servos at 6.0V
Weight	Average Lighter than 44% of 1902 Digital Standard servos

Performance Analysis

Shaft Power	4.04–8.85 W
Power Density	4.902 W/in³ More power-dense than 78% of 1759 Digital Standard servos
Torque Density	4.8722 oz-in/g Stronger than 76% of 1036 Digital Standard servos
Torque-to-Volume Ratio	175.36 oz-in/in³ Denser torque than 73% of 1042 Digital Standard servos
Speed-to-Weight	0.10610 (1/sec·g) Faster than 41% of 1033 Digital Standard servos
Speed-Torque Trade-off	45.92 Better balanced than 72% of 1031 Digital Standard servos
Torque Gain per Volt	11.88%/V More voltage-responsive (torque) than 26% of 850 Digital Standard servos
Speed Gain per Volt	29.41%/V More voltage-responsive (speed) than 98% of 871 Digital Standard servos
Voltage Range Width	2.4 V Wider voltage range than 53% of 1539 Digital Standard servos