ProTek RC 370TBL Black Label High Torque Brushless Crawler Servo
The ProTek 370TBL was developed specifically for crawler applications. Heavy 2.2 class rigs, U4 racers, lightweight 1.9 comp builds, and ultra detailed scalers can all benefit from the feature set that the 370TBL delivers. Pushing over 650 oz-in of stump-pulling torque and .13 speed at 7.4V, the 370TBL will move heavy 2.2 tires with ease - no matter how much weight you put in them.
All this power means nothing without durability. By combining this incredible power with a specialized gasket system, the 370TBL is waterproof up to 1-meter and will stand up to anything mother nature can throw at it. A full steel gear train, 25T output shaft and full aluminum machined heat sink case make the 370TBL extremely tough. The 370TBL delivers the excessive power that crawlers demand - with durability and reliability that make it a must have servo for crawlers that expect the most from their rigs.
- During testing, we found that some Tactic receivers included with the SCX10 II RTR do not communicate well with high performance servos, and may not function properly with this servo.
- For best results, and the peak performance, we recommend you power this servo with a BEC.
- If you experience glitching or poor performance while using a Futaba transmitter, you must turn off BLS mode. BLS mode is only compatible with Futaba BLS type servos.
- Ideal for any 1.9 to 2.2 Crawler application
- Waterproof up to 1 meter
- 600 oz-in of torque @ 6.0V, and .135 transit speed
- 650 oz-in of torque @ 7.4V, and .13 transit speed
- Brushless motor
- High voltage circuitry
- Full steel gears
- Full aluminum black anodized heat sink case
- Dual ball bearings
- 280mm servo lead
|Recommended Application|| 1/10 to 1/8 Scale Crawler
|Operating Voltage|| 4.8V - 7.4V
|Operating Temperature||14° to 140° F (-10 to +60° C)|
|Operating Speed @ 6.0V|| 0.135/60° sec
|Operating Speed @ 7.4V
|| 0.13/60° sec
|Dynamic Torque @ 6.0V
||600 oz-in (43.2 kg-cm)
|Dynamic Torque @ 7.4V
|| 650 oz-in (46.8 kg-cm)
|Stall Current @ 6.0V
|Stall Current @ 7.4V
|Output Shaft||25 Tooth
||1520μs / 333hz|
|Length (Bottom to Mount)
ProTek R/C is an AMain Sports & Hobbies brand.
This product was added to our catalog on December 23, 2016
10/25/2108 The hot racing servo horn just bent but the servo is still going strong!!! It’s a beast!
I bought this when it first came out and that night I used it to push a garden brick across the table. It pushed with such force it actually pushed it away from the servo. I have it in my Beast II and it is a monster. It has been fully submerged in mud and still works like a champ. Will recommend to all my crawling buddies.
One thing to note: the power lead is WAY too short for the TRX4. You'll either need to flip the receiver box around or buy an extension cable to make it work (I did both).
I wanted to replace the stock servo with a waterproof servo and there aren't a whole lot of options. I really like how much torque the he ProTek RC 370TBL servo has and it doesn't even break a sweat turning the Gen 8 wheels lock to lock while stationary and it can handle the added stress of rock crawling with ease plus it's waterproof like I wanted. The ONLY downside is that it's very pricey at $160.00, so that could be an issue if you are working with a tight budget. That said, if you are looking to upgrade a RTR steering servo and have a little extra cash, I would not hesitate to pick up one of these servos for a rock crawler of any size (1.9-2.2 or bigger even).
Note: if you are replacing a RTR steering servo, I would highly recommend also replacing the servo arm to a nice aluminum clamping type to keep it secure. Just be sure to get one that is close to the same length (servo hole to ball stud hole) as the stock one as possible. This servo is a monster.
This is my 3rd one. I have 2 in crwalers and 1 in my UDR . Two of the most impressive features is its holding power amd lack on noise when centered unlike other servos that I have. If you can spring it you wont regret it.
Trail torque is awesome, even in 6V on a HW 1080. Can easily "wag the tail" if the front is pinched in a crack/rock. Doesn't get hot in 4+ hour rides either.
After sending my past two ProTek servos back for warranty service within two weeks of receiving them (both 150S servos) you would have thought I'd learned a lesson. When I saw the specs on this servo and the fact is was waterproof I couldn't resist. I ordered one on 1/21/17 and received it a few days later. The servo was completely dead out of the box. I verified this by testing with a known good servo.
AMain was prompt to issue an RMA and I sent the servo back the next day. As I needed a servo for the weekend I ordered a second 370TBL and paid an additional $36.49 for UPS 2nd Day Air. My second 370TBL arrived last night (2/1/17). Upon installing it, it worked flawlessly for less than 30 seconds before it stopped - another servo totally dead. Again, I confirmed this using a known good servo.
I have tried both servos in a Vaterra Ascender with a Holmes BRXL ESC and a Castle BEC set at 7.2v. The main power lead on the ESC has been disconnected going into the receiver so that only the ground and signal wires from the ESC connect to the receiver (as per Holmes and Castle instructions).
All said, I've spent $356.46 for two servos in ONE WEEK that COMBINED have a total of LESS THAN 30 SECONDS of trouble-free operation! The customer support I've received from AMain has been top-notch (as always) and I've had absolutely no issue getting an RMA issued to return both servos. Outside of this I've always enjoyed doing business with AMain, but I feel the ProTek brand of electronics reflects HORRIBLY on their overall great business.
Don't make the same mistake I did - STAY AWAY FROM PROTEK SERVOS!!! This servo is an absolute, unmitigated PIECE OF JUNK!!!