Holmes Hobbies CrawlMaster Pro 550 Brushed Electric Motor (10T)

The Holmes Hobbies CrawlMaster Pro 550 Brushed Electric Motor offers incredibly smooth startup control and sets the gold standard for Rock Crawling motors.
 
Features:

• 550 size provides extra torque and power
• Hand wound at Holmes Hobbies for highest performance
• 5 slot armature maximizes smoothness, efficiency, and offers unequaled startup
• Epoxy balanced armature ensures maximum torque, efficiency, and startup smoothness
• Silver brazed commutator connections allow higher tempurature 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

Specifications:
Turns: 10 turn five slot
RPM: 27,250 @12v (estimated) & 12 degrees timing
Weight: 216 grams
Size: 36mm OD x 60mm length (not including shaft)
Shaft: 1/8" diameter
Mounting Pattern: 1" (25.4mm) for M3 screws
Input Voltage: 6-9 cell nimh, 2-3s Lithium
Rotor: 23mm OD x 29mm