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21st Sep 2018, 09:58 AM #1Golden Member
- Join Date
- Apr 2009
- Location
- Kingswood
- Posts
- 930
Spherical Bushing for Loco Trailing Arms
Looking for some sort of spherical connection to act as the anchor point for trailing arms to be used on 1:8 scale railway locomotive axles.
The prototype had conventional axleboxes with bushed bearings held by mainframe horn cheeks, and this is the way my existing 2-axle locomotive was arranged with double reduction toothed rubber belt drive to the axles.
For a new 2-axle locomotive I want to use ball bearings in the axleboxes, trailing arms to more securely position the axles and double reduction chain drive. The axle boxes would not contact the horn cheeks.
The following link shows the type of thing I am considering.
Movement might be considered as +/- 5 degrees both radially and axially.
The loco tractive effort would be be perhaps 1000 N taken by 4 bushes, 2 links pointing forward and 2 backwards.
www.smallparts.com.au/store/item/ge0080001900w300/bushingssphericalplastic/
One aspect to be reviewed is skewing of the suspension, which may mean additional transverse links with perhaps spherical ball bearings in the axleboxes.
This item looks OK to me, any comments ?
Anyone else using these in a similar application ?
Is there a Sydney retail outlet with similar/equivalent that could be viewed ?
John
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21st Sep 2018, 04:55 PM #2Most Valued Member
- Join Date
- May 2011
- Location
- Murray Bridge S Aust.
- Age
- 71
- Posts
- 5,945
Hi John,
Some time ago, I used to use them in some irritation machines, not that small from memory they were about 25mm bore, and got them from CBC bearings, https://www.conbear.com.au/Product/info/GE20DO2RSECO
There are about 180 pages of similar items, if you go to your local bearing place they should be able to locate something for you.
KrynTo grow old is mandatory, growing up is optional.
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23rd Sep 2018, 11:09 AM #3Senior Member
- Join Date
- Dec 2013
- Location
- Sydney
- Posts
- 201
John,
Treotham list plastic spherical bearings. I'm not sure whether they would stock these locally, but I've purchased other stuff from them in the past and they've always had what I was after in stock.
Spherical Bearings - Treotham
Graham.
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23rd Sep 2018, 02:42 PM #4Golden Member
- Join Date
- Apr 2009
- Location
- Kingswood
- Posts
- 930
Thanks guys for the links.
There is a CBC not far from me in Penrith, and Treotham are not that far away (but take a cut lunch).
Time to start designing.
John.
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24th Sep 2018, 08:29 PM #5Senior Member
- Join Date
- Feb 2012
- Location
- Willunga
- Posts
- 114
Hi John
Not sure exactly what you are aiming for but I have seen trailing trucks on freelance locos use these
https://www.ebay.com.au/itm/6mm-Tie-...IAAOSwZQRYZPuo
My local CBC has them.
Regards
Ian
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