I see some reference once in awhile to a too tight or too loose axle fit. Too loose is pretty obvious but what is too tight? I would think tight would be good to hold everything in place? If you drill holes with a 44 and use .087-.088 axles is that enough of a press fit to hold them tight especially the DFW and be able to pull them several times for tuning or reprep?
axle fit..how tight?
- Thread starter MBRacing
- Start date
What you may have been seeing is a reference to the larger 92 axles in the #43 drill hole. The #43 produced a .089" hole and the axle was .003" larger. Typically the hole was reamed larger or relieved for a better fit. If this was not done you could actually get the axle stuck. I think a .0005" interference fit would be about right. A 2.3mm drill has a good fit (.0906) without any additional work. John's current 92X axles are stepped down to .091", which would provide a .0004" interference fit.
#44 drill makes a .0860" hole and the 2.2mm drill makes a .0866" hole. If the axle size was .087", the 2.2mm drill would give a .0004" interference fit.
#44 drill makes a .0860" hole and the 2.2mm drill makes a .0866" hole. If the axle size was .087", the 2.2mm drill would give a .0004" interference fit.
A #44 is tight enough for stock BSA axles. Those you will usually have to relieve the holes still too. Take a spare axle and keep taking it in and out until you can pull it with just your fingers. It should still take a little effort but not so much you feel like you'd dent your wheel pulling it off when it is installed.
A trick you may consider are drilling a tiny air hole on the bottom so you dont have to deal with suction. Another is to drill a hole just big enough to grab the tip of your axle with a needle nose to tune it and push it out as well. Cover the holes with tape before racing.
A trick you may consider are drilling a tiny air hole on the bottom so you dont have to deal with suction. Another is to drill a hole just big enough to grab the tip of your axle with a needle nose to tune it and push it out as well. Cover the holes with tape before racing.
I personally like mine to where they fit right enough that I can push in by hand, and pull out by hand. Once I'm ready to tune or send in Proxy I add a little wood glue at the end of a tooth pick and apply to the hole( VERY LITTLE) this will keep the axle gaps in place and ur steer won't move.. I do this to all my cars..
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