Do you like brushed motors, but need more creep on the low end without sacrificing the top speed? I have been developing just the motor for you "thumbsup" I have spent months perfecting the build and techniques for this motor, and now you can have it too!
For up to date features and pricing, visit our website Holmes Hobbies / Holmes Bikes :: Motors :: Brushed :: CrawlMaster Pro 540
Basic Tech specs of the motor
When you have a need for power that isn't satisfied by normal brushed motor, it is time to step it up a notch with a precision built Handwound! The Holmes Hobbies Crawlmaster 540 is a hand built "540" with the finest parts and construction techniques available. Our building team for these motors has a combined 50 years of experience, the most experienced in the world for the humble 540! We guarantee the finest and most up to date construction on our motors. If you want something a more custom than what you see here, simply contact us. We are happy to build you exactly what you need.
* Hand-Wound Armature – Each armatures are hand wound to your order by professionals. We use carefully selected wire gauges for peak power and torque. Each armature is epoxy resin encapsulated, terminated with high temp silver alloys, and dynamically balanced with epoxy (at no extra charge) for peak torque and efficiency. There is no better armature than ones made with care by Holmes!
* Standup Brush and 7.5mm Comm- Maximizes power and motor longevity
* Gold plated copper brush hood to resist corrosion and provide lowest resistance
* 5 slot armature- offers the finest low speed control
* Can – 1.4mm thick can features minimal venting and two high-power FB9 wet magnets to maximize torque and efficiency
* Dual Ball bearings
* Adjustable timing
* 0.55mm extra Heavy springs for consistent drag brake
* Neutrally timed for no risk of improper installation
All Kv measurements taken at zero timing, no load, and 3100 rpm.
13t- 2250Kv
16t- 1850Kv
20t- 1500Kv estimated
28t- 1250kv estimated
32t- 1110Kv
Every motor carries a 30 day warranty to cover manufacturing defects.
When you want the best low speed control in a 540 motor, choose the CrawlMaster 540!
Here is the no hype, no fluff bottom line-
Low speed resolution like no other brushed motor, even the Cobalt Puller!
MUCH longer service life due to reduced comm arcing
Ability to run at zero timing without negative consequences
Reduced arcing at higher voltages
But of course you can't get something for nothing...
Drag brake is slightly weaker unless Active Hold is engaged
We have the most experience with high slot count motors, and constantly test and tweak our construction for the highest quality. If you don't see something "fancy" listed you can rest assured it is not needed. We guarantee you will be satisfied, or your money back!
I have been testing a set of 13.5t in my XR10 since Nats this year, and I have been very pleasantly surprised all around. They run right at the same speed as a 27t, but I can run them on 4s lipo and still have plenty of low speed crawl. And I do mean PLENTY! With stock gearing on the XR10 I do not have to engage Holmes Hold, standard drag brake is plenty to slow down the rig. While they are not as punchy as the TorqueMaster 540 counterpart, there is more than enough power to break parts.
So what does it add up to? While they may not be for everybody, I won't be running three slot arms in most of my 540 motors now. These are just too dang smooth!
Here is a little sneak peak of what the motors are capable of. Low speed control without sacrificing wheelspeed? That is what this motor is all about!
Holmes Hobbies TorqueMaster & Crawlmaster test - YouTube
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