These gray “skate” wheels have an outer diameter of 2.975”, an inner diameter of 0.87”, and a width of 0.94”. When used in conjunction with the skate wheel adapters (check below), you can use them with Actobotics motors and shafts, or use them with standard skate bearings.
Features:
- OD – 2.975”
- ID – 0.87”
- Width – 0.94”

Rocker switch (AC 250V 3A)
3.3- 5V Active Buzzer
9V Alarm Buzzer
3.5mm Straight pin Screw Terminal (2 Pins)
Electret Microphone (Mini)
ISD1820 Voice Recording and Playback Module 








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