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  Servos   DS821-R High Torque Sport
DS821-Reversed Digital Sport Hi-Torque Servo

DS821-Reversed Digital Sport High Torque Servo

Key Features

  • Lower price point, but higher performance value
  • New, longer-lasting plastic gear material
  • Same size as standard servo
  • Ball bearing-supported output shaft

 

Technical Notes

The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons.

Important: Do not use liquid thread lock with the DS821-R servo!

Do not use any form of liquid thread lock to secure the servo arm screw to the output shaft of the DS821 servo. Chemicals in these liquids react with the polycarbonate gear set causing the plastic to become brittle, fracturing the final output gear.

Specs

Size Category: Standard

Type: Digital

Torque: 72 oz/in @ 4.8v, 88 oz/in @6v

Speed: .19 sec/60° @ 4.8v, .15 sec/60° @ 6v

Dimensions (WxLxH): 0.74"x1.50"x1.47"

Weight: 1.5 oz

Bushing Or Bearing: Bearing

Bearing: Single

Motor Type: 3-pole ferrite

Gear Type: Nylon

Gear Material: Composite

Application: Standard size-digital servo upgrade for sport pilots

                             

DS821-Reversed Digital Sport Hi-Torque Servo

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Copyright 2009 Prices Subject to Change Without Notice
Updated 04/22/09

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