The Holmes Hobbies TorqueMaster Pro 550 Brushed Motor offers fantastic torque with extremely smooth startup, making this a great well rounded motor for your Rock Crawler.Â
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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 smoothnessÂ
- 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
NOTE:Â Every brushed motor carries a 30 day warranty to cover manufacturing defects. Damage caused by improper gearing is not covered under warranty.
Specifications:
Type:Â 27 turn three slotÂ
RPM:Â 20,000 RPM (estimated) @12v @ 12 degrees timing
Weight:Â 216 gramsÂ
Size:Â 36mm OD x 60 length (not including shaft)
Shaft:Â 1/8″ diameter D shaft
Mounting Pattern:Â 1″ (25.4mm) for M3 screws
Input Voltage:Â 6-9 cell nimh, 2-3s LithiumÂ
Rotor:Â 23mm OD x 29mm
Rotor:Â 23mm OD x 29mm
This product was added to our catalog on June 22, 2020

















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