Assertion: stroller's wheel | /r/HasAspect | its own electric drive
Facets:
Source sentences:
text: Each wheel had its own electric drive made by Delco, a direct current (DC) series-wound motor capable of 0.25 horsepower (190 W) at 10,000 rpm, attached to the wheel via an 80:1 harmonic drive, and a mechanical brake unit.
text: Each wheel had its own electric drive, a DC series wound 0.25 hp motor capable of 10,000 rpm, attached to the wheel via an 80:1 harmonic drive, and a mechanical brake unit.