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Bushings
Aug 30, 2014 13:43:22 GMT -7
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Post by pceng on Aug 30, 2014 13:43:22 GMT -7
Just put bushings in Tyco bulkheads , installed front bushing from outside. Flanged , makes spacing arm easier than milling down flange part of bushing. Used small dab of JB on each side of bushing so no worries about it coming out of the bulkhead.
Did not want to put this under upgrade thread........ thought all stuff from past ........ eeerrr you know, had been deleted.
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Bushings
Dec 8, 2014 7:12:39 GMT -7
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Post by pceng on Dec 8, 2014 7:12:39 GMT -7
Thinking I'm going to put bushings in Tyco again........ should have said more bushings. Already did bulkheads. Going to try rear axle bushings. Might be tricky because of notch.........but patience wins out. Was thinking of increasing size of notch so bushings could be left on axle assembly. Keeping removal & instalation on rear snap fit.
From what I've read about it (where ever I found it). Popular consensus is that top speed is increased when axle is in bushings vs plastic hole.
Concern is whether such would be legal for NTRA inline builds. Not questioning stock, but N2. Upcoming race you know, and all my cars are ready. Need something to do before then.......ok something else. Just don't feel like picking up a soldering iron right now even though I need to get busy with one.
......... Peter
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Bushings
Dec 8, 2014 10:06:38 GMT -7
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Post by pceng on Dec 8, 2014 10:06:38 GMT -7
N G on Tyco....... window behind axle pocket is to close. Could be filled then hole enlarged for bushing. But won't be a quick fix.
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Post by dave632 on Dec 10, 2014 18:06:16 GMT -7
I was thinking of putting ball bearing on the rear axle but I have not experimented with that yet.
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Bushings
Dec 10, 2014 20:13:09 GMT -7
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Post by pceng on Dec 10, 2014 20:13:09 GMT -7
Been thinking same for some time about armature bearings in a couple of cars.
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Post by dave632 on Dec 11, 2014 6:58:13 GMT -7
Tried them in a couple of motors and they only made a slight difference over brass bearings, maybe a few thousands in ET. Still it was an improvement. I also bought a pair on line for 11.95 that did not fit the shafts. They do not fit the .059 shaft and the shaft has to be cut down to .057 for the bearings to fit. Do not think it is best to have to do that.
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Bushings
Dec 11, 2014 15:01:32 GMT -7
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Post by pceng on Dec 11, 2014 15:01:32 GMT -7
What size ID were the bearings sold as ? Did you check on own for size ? Think 1.5 mm is the right size.
When installing it helps to line up bearings before arm is installed , as with bushings. Can do with drill bit when bulkheads are in chassis without arm.
...... Peter
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Deleted
Deleted Member
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Post by Deleted on Dec 11, 2014 17:44:18 GMT -7
Peter, Here is a G3 chassis I did awhile back with ball bearings installed in the rear. Broke it down for parts on another build but it was very smooth and quite. Bearings came from the RC micro helicopter world! Think there were around $8.00 for 4 ball bearing. Local RC shop.   ALan |
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Bushings
Dec 11, 2014 19:57:27 GMT -7
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Post by pceng on Dec 11, 2014 19:57:27 GMT -7
As long as the ID is right , many is the source....... for axles. More often than not. Inside & outside diameters as well as thickness need to be specific for armature use.
Thanks for posting pics , Alan.
....... Peter
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Post by dave632 on Dec 12, 2014 8:33:10 GMT -7
What size ID were the bearings sold as ? Did you check on own for size ? Think 1.5 mm is the right size. When installing it helps to line up bearings before arm is installed , as with bushings. Can do with drill bit when bulkheads are in chassis without arm. ...... Peter They were sold as .059 bearings but they did explain that shafts would have to be polished to get them to fit. They said only a half a thousandth, I found it took 2 thousands to get them to slide on. I think they bought a bunch of wrong size bearings and were just trying to unload them. Have you found any good sites to get bearings? BSRT sells them and they fit but their prices are very high, 10.00 each.
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Post by dave632 on Dec 12, 2014 8:36:20 GMT -7
Peter, Here is a G3 chassis I did awhile back with ball bearings installed in the rear. Broke it down for parts on another build but it was very smooth and quite. Bearings came from the RC micro helicopter world! Think there were around $8.00 for 4 ball bearing. Local RC shop. ALan That looks like a good bearing setup for the rear. 8.00 for four is a great price, have not found any near that price. |
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Bushings
Dec 12, 2014 9:40:13 GMT -7
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Post by pceng on Dec 12, 2014 9:40:13 GMT -7
1.5 mm is .0595 (or close to it). That is a close fit on a .059 shaft.
Not sure about axles , but have seen articles where arm shaft is polished so shaft has more float inside of bearings.
Check E-bay , think somebody got them there pretty cheap.
........ Peter
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Post by dave632 on Dec 12, 2014 15:55:43 GMT -7
The cheapest I found were the ones I mentioned which I don't recommend. If you see any others let me know.
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Bushings
Dec 12, 2014 16:35:20 GMT -7
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Post by pceng on Dec 12, 2014 16:35:20 GMT -7
LuBob , LB'S....... Gonna have to start abbreviating. Lucky Bob's , carriers them. Flanged and unflanged....... 10.- a pop. $20.- to do one car.
I did finally breakdown and.got 4 to do 2 cars. One a 3ohm build with DeCosmo chassis (that needs arm & magnets now). Other is an ongoing "what next". But first want to see what a brush change does.
.......... Peter
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lewis
Pro Stock
Posts: 220
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Bushings
Mar 3, 2015 20:53:39 GMT -7
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Post by lewis on Mar 3, 2015 20:53:39 GMT -7
I'm doing bearings on my Wizzard chassis for the arm i will let u know how it goes. I know those little bearings aren't cheap I gave $8 each for them. I have bought lawnmower wheel bearings cheaper lol
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