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Details
Details
The HobbyStar HCS-4521WP servo features a fully waterproof design and massive-torque (444oz/in @7.4V) for the ultimate crawler servo. All-steel gears for reliable operation and an aluminum center-case to aid in cooling and add strength this is a perfect servo for crawling rig.
Specifications:
- Speed @4.8V: 0.16 sec
- Speed @6.0V: 0.13 sec
- Speed @7.4V: 0.10 sec
- Torque @4.8V: 287 oz/in
- Torque @6.0V: 347 oz/in
- Torque @7.4V: 444 oz/in
- Pulse/Frequency: 1500µ/330Hz
- Dimensions: (LxWxH) 40.5x20x37.5mm
- Weight: 58g
- Bearing: Dual ball bearing
- Gears: Steel
- Motor: Digital Coreless
- Input Voltage: 4.8V-7.4V
- Output Shaft: 25T spline
- Wire Harness Length: 260mm
Reviews
Customer Reviews (3)
- Great crawler servoReview by nicholas
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I have this servo in my Capra. It is linked with the hobbystar servo arm. It’s been 6 months and this is a very good servo. I put it through the paces jamming tires between rocks, maneuvering with just the torque of the servo. Very under rated as all hobbystar electronics are. (Posted on 3/12/2021)Price Value Quality - Great servo for MT'sReview by olds97_lss
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I've been running 2 of these servos for about a year. One in my e-revo 2.0 and one in my outcast 6S. They have tons of power and are plenty fast at 6V. I run mine off max6 esc's at 7.2V so they are even stronger/faster. They center well and seem to work well in general.Price Value Quality
I was lucky enough to get one of them on sale for $35 shipped. The other I bought after my savox 1210 died ($80 servo after a year) in my outcast and I needed a good replacement.
I have a comparison video of it here when I installed one in my revo:
https://www.youtube.com/watch?v=NN62qpoObH8
I show it on 6V and 7.2V in the truck. (Posted on 3/1/2021) - Awesome servoReview by Dan
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Purchased this servo for my axial wraith and I’ve got to say it’s awesome. If you want a really nice servo for your rock crawler look no further. (Posted on 11/7/2020)Value Quality Price
Tags
Ask Question
how would this servo be for an 1/8 scale e buggy? thanks
A:
It definitely has enough torque, but may fall short of the speed you want to see out of an 1/8 scale buggy servo. Here is a link to what I would recommend for an 1/8 buggy.
https://www.rcjuice.com/servos/servos/standard/hobbystar/hobbystar-hcs-4519-high-speed-high-torque-digital-servo.html
https://www.rcjuice.com/servos/servos/standard/hobbystar/hobbystar-hcs-4519-high-speed-high-torque-digital-servo.html
RCJuice answered on April 29, 2020
Does this require a bec in a stock trx4 sport on 3s?
A:
Hi,
No, this will not require a BEC for operation.
No, this will not require a BEC for operation.
RCJuice answered on April 28, 2020
Would this be a direct fit into the V4 Kraton 6s? If so, will it accept the stock mounting hardware/horn?
A:
Yes, this servo should be a direct fit without issue.
RCJuice answered on July 9, 2020
Would this work well in a 1/8 arrma kraton?
A:
This should work very well in your Kraton and provide nearly twice the torque as the stock unit.
RCJuice answered on April 9, 2020
I have a castle MMX esc that has a bec that can be 5.5, 6, 7.5 or 8V. Will this servo handle 7.5V or should I leave it at 6V?
Thank you.
A:
The servo should be fine at 7.5v. If you feel more comfortable at 6v, the operational difference is hardly noticeable.
RCJuice answered on July 26, 2021
Can you get gear sets for these? I have 3, 2 have lasted over a year, one in my e-revo 2.0 and outcast 6S. The one in my maxx died after a month.
A:
Gear sets for the HCS-4521 can be found here:
https://www.rcjuice.com/servos/servo-gears/hobbystar-hcs-4521-replacement-gear-set.html
https://www.rcjuice.com/servos/servo-gears/hobbystar-hcs-4521-replacement-gear-set.html
RCJuice answered on October 22, 2021
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