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Subject: 
Re: matching motor speeds on mutli-motor trains
Newsgroups: 
lugnet.trains
Date: 
Mon, 27 Mar 2000 19:09:19 GMT
Viewed: 
1957 times
  
In lugnet.trains, James Powell writes:

Lar said:

Wheel slip is a *bad thing* if you have wheels with rubber tyres, which LEGO
uses. excess slip causes tyre heating and the rubber eventually perishes, or
deforms enough to come off.

I'd tend to suspect that it is not really a big problem.  Not positive though,
since I think that wheelslip is likey to wear out the tires...

In 12V days there was a service pack available with extra rubber tires if your
original ones (from the 12V motor) perished or were otherwise damaged.

This service pack is now highly prized as it's been out of prod for 20ish
years.

I am 2000 miles away from my train stuff but I could swear that:
- there is a (much smaller, black o-ring like) tire on the plastic wheel of a
9V motor, one per wheel
- there is no service pack available for this part at all.

Hence I tend to think anything that damages these tires is bad. That includes
overheating and oil, which will damage the rubber if it gets on it, the rubber
tends to swell up and it works itself off the wheel.

++Lar



Message has 1 Reply:
  Re: matching motor speeds on mutli-motor trains
 
(...) Yep, there's a black o-ring around each of the motor wheels, they ride on top of each rail. The weight of the motor helps provide traction (prototypical, eh Lar?), that's why I put at least two or three weight elements in each of my (...) (24 years ago, 27-Mar-00, to lugnet.trains)

Message is in Reply To:
  Re: matching motor speeds on mutli-motor trains
 
(...) Ya, there are 2 "standard" gearing setups, one which maxes out at something like 97 MPH and one at 112 MPH. You cannot MU otherwise compatable equipment that has the different gearings. Also, note, you cannot MU things like SW1xxx's with say (...) (24 years ago, 27-Mar-00, to lugnet.trains)

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