When you need a quality brushed motor, there is no finer than a Pro Handwound from Holmes! The CrawlMaster series offers unequaled 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 Specification: 10 turn five slot / 27,250 RPM @12v (estimated) @ 12 degrees timing 216 grams 36mm OD x 60mm 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 More information about motor rotation and timing can be found on our blog.Every brushed motor carries a 30 day warranty to cover manufacturing defects. Damage caused by improper gearing is not covered under warranty.
