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ROD
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« on: April 27, 2009, 06:02:36 AM » |
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Can someone tell me how the swing arm is generally attached to the frame?
Is it by.....
1) bearing ..needle roller or other type?
2)Bush..brass (or possibly metalistic type?)
3) other?
Is the 'spindle' of the bearing(s) one long bar or are the sides separated?
Thanks in advance
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tbone
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« Reply #1 on: April 27, 2009, 08:39:54 AM » |
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This wont really help you but,... Yes can be the answer to all your questions. It`ll be very much dependant on the model of bike. The pic shows a general swing arm configuration.
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NO I WON`T. aye ok then, i will
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reliantman
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« Reply #2 on: April 27, 2009, 09:22:44 AM » |
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If I was to build a back end with seperate swing arms, I would use at least two big roller bearings in each.
Lot of stress in the back there, and you can never over-engineer enough.
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ROD
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« Reply #3 on: April 27, 2009, 10:14:20 AM » |
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Quite agree! Just trying to get an idea of "industry standard" lol!
so number 2 is the spacer,and there are needle rollers in the ends. Out of interest ,whats the number 4's?
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« Last Edit: April 27, 2009, 10:16:35 AM by ROD »
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reliantman
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« Reply #4 on: April 27, 2009, 11:55:18 AM » |
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Just my 2 1/2 pence worth.
I personally would go for the same sort of triangular arm as in the green trike pics, but with a big bearing in each end, with a smaller diameter collar holding it in place.
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ROD
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« Reply #5 on: April 27, 2009, 12:37:40 PM » |
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Idea so far is to build a 4 bar system,with the top bars joined by 2 bars running across the top of the prop area.@90 deg to the 4 bars.Not sure whether the 4 bars will be connected to the chassis by large rose joints,or something else. The axle end of the 4 bars def connect by rose joints to the axle brackets ,which will also act as mounts for the coilovers ,sited just behind the axle. What do you think? Complicated to explain ,and no good at getting sketches on here! Will make the bars and cross bars from polished stainless tube.
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reliantman
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« Reply #6 on: April 27, 2009, 12:42:20 PM » |
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Whatever suits you best, mate. Its all trial and error.
All I can say is don't skimp on your materials and keep it simple.
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ROD
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« Reply #7 on: April 27, 2009, 12:56:03 PM » |
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Just had a look at 14mm rose joints price  ...er ....I think I'll def find summat different for the front ends !But use them on the axle ,the 'looks' end! |
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madron
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« Reply #8 on: April 27, 2009, 01:54:43 PM » |
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what about self lubricating poly bushes make your own inner & outer steel tubes and machine up the poly to suit or buy em ready made from some one like pop browns
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ROD
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« Reply #9 on: April 27, 2009, 02:38:43 PM » |
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Reckon they'd take the strain?
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Manky Monkey
Administrator
Hero Member
Karma: 264
Posts: 55102
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« Reply #10 on: April 27, 2009, 07:15:06 PM » |
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Try these guys for rose joints. One of the cheapest suppliers I've found & very quick mail order service. McGill MotorsportsSounds like an interesting departure from the usual hardtail route. If you don't Photoshop, you could always sketch your design, photograph it & post the photo.  |
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On the last freedom moped out of Nowhere City.
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ROD
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« Reply #11 on: April 27, 2009, 08:15:26 PM » |
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good idea!
Those rose joints look ok ,reckon theyre strong enuf for an axle mounting?
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« Last Edit: April 27, 2009, 08:18:15 PM by ROD »
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spanners
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« Reply #12 on: May 21, 2009, 11:54:40 PM » |
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all we use to use on f2 sock cars (5link) rear ends were half inch (or metric eq ) rose,s never broke any joints bent a few snapped the rods but never the joints
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LIVE FAST and DIE YOUNG,, past 50 AND STILL HERE NOW. WAITING. FOR. THE. GRIM. REAPER
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ROD
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« Reply #13 on: May 22, 2009, 08:32:26 AM » |
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Now going for hardtail,after advice off this forum!
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Manky Monkey
Administrator
Hero Member
Karma: 264
Posts: 55102
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« Reply #14 on: May 22, 2009, 06:23:55 PM » |
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Springs are for wusses!  |
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On the last freedom moped out of Nowhere City.
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