Holmes Hobby CrawlMaster BL 540 Stubby 10-Pole Sensorless Rock Crawler Motor

CrawlMaster BL 540 Stubby 10-Pole Sensorless Rock Crawler Motor 2700kv

 

Brief motor, Smooth Start-up, Sensorless inrunner reliability!

When you need a smooth and effective sensorless motor however don't want the sound or spinning can of a Revolver, the Crawlmaster 540 Stubby delivers! This 10 pole topology is tuned for competitors and critical drivers, with improved startup and low end control you anticipate from Holmes! The Stubby is shorter and lighter than basic 540s without compromising power or torque, it is an optimized efficiency option in the inrunner design.
 
Top functions consist of very controllable startup, greater performance than outrunners (however at lower torque density), sealed can develop for messy usage, 8 method installing for the perfect install, sturdy solder tabs for lower resistance, and oversized bearings to avoid early failure.  
 
Functions:

Ten pole 16mm length Kevlar wrapped rotor with 180c rated magnets

Twelve slot stator with 200c rated resin impregnated coils

14g stage wires with greater quality 4mm compression bullets installed

Oversized ABEC-7 bearings

Sealed can

8 blind installing holes

Much shorter than a regular 540 motor

Specs:

25mm 8 hole installing pattern

M3 installing screws (5mm depth max, we suggest using 6mm screws for a lot of installs)

3.175mm shaft

36mm diameter

45mm length

149g (5.26oz) with wires

50,000 rpm max

2-4s lipo advised

Suggested ESC pairing, Castle Creations or Holmes Hobbies products

1 year warranty from date of purchase. Does not consist of damage from overheating, rust damage, or incorrect setup.  We suggest occasional dissasembly and cleansing if the motor is utilized constantly in water, and extra grease on the exposed ball bearing to avoid water from seeping past the bearing/ shaft user interface.