Material: rubber (with anti-slip ring)
Hole: 1.95MM, tightly matched with 2MM shaft
Width: 4MM
Straight: 28MM
Width: 4MM
TY-wheel
Material: Rubber (with slip ring)
Hole by: about 1MM
Width: 4MM
Diameter: 40MM
Rubber wheel
Tire outer diameter: 69MM
Tire inner diameter: 51.8MM
Width: 26.6MM
Inner frame shaft outer diameter straight: 13.8MM
Shaft hole width: 3.66MM
Shaft hole length: 5.3MM
Wheel +DC geared motor
Wheel diameter: 65MM
Thickness: 27MM
Inner diameter: 51.8MM
Wide diameter: 26.6MM
Inner frame shaft outer diameter straight: 13.8MM
Shaft hole width is about 3.65MM
Motor model: F130SA-15150-38V
Rated voltage: 3V
No-load current: ≤100MA
Control speed: 6500±10%
Speed ratio: 1:48
Speed: about 125 rpm
Current: ≤160MA
Environmentally friendly, strong magnetic anti-jamming motor. Power terminal outward, bilateral output, white housing 5PCS