- Servo Database
- Hitec Servos
- HS-322HD
Hitec HS-322HD - Standard Heavy Duty Servo
Specifications
| Modulation: |
Analog |
| Torque: |
4.8V: 42.00 oz-in (3.02 kg-cm)
6.0V: 51.00 oz-in (3.67 kg-cm)
|
| Speed: |
4.8V: 0.19 sec/60°
6.0V: 0.15 sec/60°
|
| Weight: |
1.51 oz (42.8 g) |
| Dimensions: |
Length:1.57 in (39.9 mm)
Width:0.78 in (19.8 mm)
Height:1.43 in (36.3 mm)
|
| Motor Type: |
3-pole |
| Gear Type: |
Plastic |
| Rotation/Support: |
Bushing |
| Rotational Range: |
(add) |
| Pulse Cycle: |
20 ms |
| Pulse Width: |
900-2100 µs |
| Connector Type: |
(add) |
| Brand: |
 |
| Product Number: |
33322S |
| Typical Price: |
9.95 USD |
| Compare: |
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|
Reviews of Hitec HS-322HD (3)
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Rating:
Application(s): Light robotics
Comments: Allegedly 'heavy duty', with 'Karbonite' gears -- BUT both descriptors are misleading. Has 2 Karbonite and 2 nylon gears and in light use they both break easily. It's not a heavy duty servo by any means.
With a full range of input pulse widths, 544-2400 uS., its rotational range is ~190 deg. With more usual RC input range of 900-2100 uS. it will output ~155 deg. of rotation.
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Rating:
Application(s): used as leg servos in a small hexapod robot, 3 dof per leg.
Comments: I would absolutely not recommend these for robotic applications or anything that experiences high mechanical shock. The resin gears do not stand up to the stress of walking impact. I've had 3 of these fail in the last month.
Great for low stress areas but they cannot handle any shock,
do not fall for resin gear advertisement.
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Rating:
Application(s): 4 Channel R/C Aircraft - 4.8V
Comments: I had 1, maybe 2 of these brand new servo's fail on my aircraft's maiden flight. All things tested fine on the ground, but one of them, mainly the elevator servo, failed during flight. I had to send all 4 in the plane to Hitec for service. I sent 4 more that I purchased, back to the dealer for upgrade to Futaba 3004's. No more Hitec for me!
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