Non-motoring > Why trains don't have differential?	Miscellaneous
Thread Author: movilogo	Replies: 18

Sat 26 Jan 13 10:44   Why trains don't have differential? - movilogo

Looked on the web and seems something to do with conical shape of flanged wheels but still not very clear. Reply to this message | Report message

Sat 26 Jan 13 10:48   Why trains don't have differential? - Clk Sec

Some thoughts here: www.blurtit.com/q511856.html Reply to this message | Report message

Sat 26 Jan 13 11:26   Why trains don't have differential? - Zero

gentle bends, bogie sets that turn, conical wheels, and wheel/rail slip.... Thats how trains get round corners. Reply to this message | Report message

Sat 26 Jan 13 13:05   Why trains don't have differential? - Slidingpillar

Zero I believe - eek! The link however is talking rubbish, even I can tell that! Reply to this message | Report message

Sat 26 Jan 13 14:04   Why trains don't have differential? - corax

>> Zero I believe - eek! The link however is talking rubbish, even I can tell >> that! Yeah, didn't make any sense to me. Reply to this message | Report message

Sat 26 Jan 13 14:32   Why trains don't have differential? - Cliff Pope

Each pair of train wheels on a solid axle is self-steering, because the circumference of each wheel is slightly conical. So if the wheels shift a bit one way, one side is now running on a slightly larger diameter, the other on a smaller. The absense of a differential forces the whole axle to turn sideways a minute amount, which steers the unit back towards the straight position. The process is self-correcting, because the conical surfaces slope in opposing directions. They obviously both have to turn at the same rotational speed, but the speed over the rail changes slightly, like rolling a cone along the ground. Reply to this message | Report message

Sat 26 Jan 13 16:57   Why trains don't have differential? - Bigtee

There is plenty of other things that go wrong without fitting a diff.!! Heaters changing them for fun this week........................:-( Reply to this message | Report message

Sat 26 Jan 13 17:06   Why trains don't have differential? - sooty123

I take it you work on trains, reason I ask it's one area of work I'd thought of going into. What's it like? Reply to this message | Report message

Sat 26 Jan 13 18:46   Why trains don't have differential? - Bigtee

I enjoy the money and the time off as shift work gives me more freedom over mon-fri working & the pension is v good. The job it's like any other just bigger nuts and bolts & our trains are old and constantly break down so it keeps us busy. Politics is the hard bit you can't just jump in and fix things lots of training to do first to get you to railway standards of working but that takes only 4-5 months. All in all it's ok they look nice the steamers but we don't fix them the diesels stink but we do fix them!! If your interested apply with your cv. :-) Reply to this message | Report message

Sat 26 Jan 13 19:15   Why trains don't have differential? - sooty123

I heard the pension was good and I saw that the money was as well. I think there's a train depot near me, thanks for the info. Reply to this message | Report message

Sat 26 Jan 13 19:45   Why trains don't have differential? - Number_Cruncher

It's worth going to work in a depot which only works on electric trains - everything is FAR cleaner than in depots which work on diesels. Neville Hill, for example, is large rambling, cold, and filthy. Reply to this message | Report message

Sat 26 Jan 13 19:51   Why trains don't have differential? - Zero

Luckily the toilets don't discharge onto the track ( and hence all underneath the rolling stock ) any more.... Reply to this message | Report message

Sat 26 Jan 13 20:04   Why trains don't have differential? - Bromptonaut

>> Luckily the toilets don't discharge onto the track ( and hence all underneath the rolling >> stock ) any more.... There's plenty rolling stock of that type still in service. The BR Class 321 was built with retention toilets but subsequently converted to 'dump on track'. Other Mk 3 based stock are similar I think. Reply to this message | Report message

Sat 26 Jan 13 19:57   Why trains don't have differential? - sooty123

>> It's worth going to work in a depot which only works on electric trains - >> everything is FAR cleaner than in depots which work on diesels. Thanks I guess they would be. I'm not bothered either way, I'm well used to the mucky jobs. >> >> Neville Hill, for example, is large rambling, cold, and filthy. >> >> Used to that as well, unfortunatly. Reply to this message | Report message

Sat 26 Jan 13 20:04   Why trains don't have differential? - No FM2R

>> Neville Hill, for example, is large rambling, cold, and filthy. >> >Used to that as well, unfortunatly So is Mrs. Zero. Reply to this message | Report message

Sat 26 Jan 13 20:22   Why trains don't have differential? - Zero

>> >> Neville Hill, for example, is large rambling, cold, and filthy. >> >> >> >Used to that as well, unfortunatly >> >> So is Mrs. Zero. I dont think Nicole knows someone called Neville? Reply to this message | Report message

Sat 26 Jan 13 20:24   Why trains don't have differential? - No FM2R

Oh, she's still sticking to that story, is she? Reply to this message | Report message

Sat 26 Jan 13 22:25   Why trains don't have differential? - Ted

You probably know him as Mr Hill, Zed. You know...that chap who comes to see Nicole with the cold, rambling, filthy, large hands.......... .....while you're out with the camera ! Ted Reply to this message | Report message

Sun 27 Jan 13 14:43   Why trains don't have differential? - Bigtee

Neville Hill depot Siemens depot is there if you want electric however you will work on the dirty crap aswell. Northern & Maintrain are based there. Reply to this message | Report message