Middle Motor Slot?

[Rail Co]

Hey guys I am wondering if anyone knows why there is a center hole/slot in all train motors.

2014-08-07_09-26-42 by Railco1, on Flickr

I know they were i believe originally for the 12v motor but is there any use for the middle slot now? If so how could I use them (ex. Shunters)

Thanks Guys!

-RailCo

[Lazarus]

you can put a tecnic pin in them and use it as a dummy wheel for shunters.

It might just be there for some tooling they use to make the motors.

[JopieK]

Back in the 12V days there even was a special wheel that fitted that middle hole on every motor.

[opn2]

Edited September 27, 2014 by opn2

[jtlan]

It helps support the motor frame piece, which has a corresponding bump that fits in the hole. You can jam a stud (or the head of a half-pin) in that hole, but it's not a very strong connection.

[legoman666]

I modified some half pins with axle to fit in that hole on one of my locos. They fall out occasionally as I didn't do an awesome job.