Holmes Hobbies – TORQUEMASTER EXPERT 550 21T

When you need a quality brushed motor, look no further than the TorqueMaster Expert 550 from Holmes! The Expert series features the same quality construction as our handwound Pro motors, but with a machine wound armature for an affordable alternative.

FEATURES:

550 size provides extra torque and power
Machine wound for affordability
5mm web 3 slot armature- Maximizes torque, efficiency, and offers smooth startup
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
206 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