JR 821HV Servos - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-02-2014, 07:33 PM   #1
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I am: Richard N
Join Date: Mar 2003
Location: Tamworth Area
Radio of choice:
Graupner MC20(2) & MX12 & MZ-18 & MZ-24
# of RCs: 24

Feedback: 49 / 100%
Posts: 1,839
Total Props: 11
JR 821HV Servos

Quantity: 4
Model Number: 821hv
Manufacture: jr
Power Plant: No Power Plant
New or Used: Item is used but excellent condition.
Trades: No trades.
Asking Price: $100
Accepted forms of payment: EMT
Shipping : I will ship at buyers expense.
My Location: Bath, Ontario, K0H1G0

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I have four JR 821HV serovs for sale. I have decided to go with more powerful servos for my 1/3 scale project. They were mounted and checked for operation but have not been in the air. Includes the hardware.

These servos are usable with 2s LiPo batteries as the motors have been upgraded to work with higher voltages than standard servos.

$100 plus shipping. Can deliver between Kingston and Toronto area around middle of the month (Jan).


Application: Airplanes up to 1.20 size, 30-size glow, 500-size electric helis
Bearing: Single
Bushing Or Bearing: Bearing
Gear Material: Nylon composite (note - not compatible with threadlock liquids)
Gear Type: Plastic
Height: 1.47 in (37.3mm)
Length: 1.50 in (38.1mm)
Motor Type: 3-pole ferrite
Servo Type: Digital
Servo Voltage: 6.0 - 7.4V (High-voltage)
Size Category: Standard
Speed: 0.15 sec/60-degrees @ 7.4V
Speed (at 4.8V): .15 - .19 sec
Torque: 88 oz-in @ 7.4V
Torque (at 4.8V): 40 - 99 oz-in
Weight: 1.5 oz (42.5 g)
Width: 0.74 in (18.8mm)

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Last edited by cloudniner; 01-02-2014 at 07:49 PM.
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821HV , jr

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