Holmes Hobbies Torque Master Pro 550 21T Brushed Motor

TMPRO550

When you need a quality brushed motor, there is no finer than a Pro Hand wound from Holmes!  The Torque Master series offers fantastic torque with extremely smooth startup for a well rounded motor for your Rock Crawler.
 
FEATURES:

550 size provides extra torque and power
Hand wound at Holmes Hobbies for highest performance
5mm web 3 slot armature- Maximizes torque, efficiency, and offers smooth startup
Epoxy balanced armature ensures maximum torque, efficiency, and startup smoothness
Silver brazed commutator connections allow higher temperature operation
Vacuum dipped armatures withstand high RPMs without failure
Gold-plated copper brush hoods to resist corrosion and provide lowest resistance
Aluminum heatsinks shed heat
Filter PCB reduces EMF noise
Brush damper reduces noise and arcing
Can – 1.4mm thick uninterrupted back iron
High-power FB12 ceramic wet magnets maximize torque and efficiency
Dual Japanese Ball bearings
Adjustable timing
Holmes XX springs for consistent drag brake
Holmes Soft Copper brushes for high torque and longest motor life
Broken in for immediate installation and use

SPECIFICATION:
21 turn three slot / 27,250 RPM @12v @ 12 degrees timing
216 grams
36mm OD x 60 length (not including shaft)
1/8" diameter D shaft
1" (25.4mm) mounting pattern for M3 screws
6-9 cell nimh, 2-3s Lithium
23mm OD x 29mm length rotor