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Technical Specifications
Last Updated: 2026-08-12| Identity | |
| Brand |  |
| Product Number | TOWM4604 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
82.00 oz-in
5.90 kg-cm
0.6 N-m
4.8V
65.00 oz-in
4.68 kg-cm
0.5 N-m
Bottom 10%
|
| Speed |
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
4.8V
0.18 sec/60°
333.3 deg/s
55.6 RPM
Below Average
|
| Physical | |
| Weight | 1.90 oz53.9 gAbove Average |
| Dimensions |
L 1.60 in W 0.80 in H 1.50 in L 40.6 mm W 20.3 mm H 38.1 mm |
| Drivetrain | |
| Motor Type | 3-pole |
| Gears | Metal |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 254 mm10 in |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Bottom 10% Stronger than 8% of 1043 Digital Standard servos at 4.8V |
| Speed | Below Average Faster than 22% of 1041 Digital Standard servos at 4.8V |
| Weight | Above Average Lighter than 78% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 0.67–1.17 W |
| Power Density | 0.607 W/in³ More power-dense than 6% of 1759 Digital Standard servos |
| Torque Density | 1.2059 oz-in/g Stronger than 6% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 33.85 oz-in/in³ Denser torque than 6% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.10307 (1/sec·g) Faster than 37% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 11.70 Better balanced than 17% of 1031 Digital Standard servos |
| Torque Gain per Volt | 21.79%/V More voltage-responsive (torque) than 89% of 850 Digital Standard servos |
| Speed Gain per Volt | 32.05%/V More voltage-responsive (speed) than 99% of 871 Digital Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 19% of 1539 Digital Standard servos |
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Reviews (1)
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tman
December 7, 2014Application(s): 1/10 scale buggy/stadium truck
Comments: Since 2006 I have been using Tower Hobbies TS-140 Digital Standard HS servo for my buggy racing needs. I didn't want to spend big bucks, just to gain .05 seconds of speed, after I spent so much already for other electronics for my new buggy. After a lot of searching on specs/prices on tons of servos... I settled on the TS-140. I'm glad I gave it a try.
The $25.99 TS-140 is plenty fast enough with great tourqe for buggy use. I even used the TS-140 in my stadium truck that had destroyed a stock servo for a short time while I searched for a replacement with a little more tourque (to be on the safe side of moving bigger tires).
It's now almost 2015 and I have only replaced the gears once since 2006. The TS-140 is on my wish list should the one I have now decide give out. I don't need fancy lettering/graphics or a top brand name servo that is gonna cost twice as much, or more, than the TS-140. It gets the job done, and it does it so well.