Author Topic: Hollow axles?  (Read 8262 times)

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Offline Franken750

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Re: Hollow axles? Thanks.
« Reply #25 on: November 27, 2011, 07:42:36 PM »
Hi Guys.

Many thanks for all those replies; they've given me good places to start looking.

Will post a follow up when I find what I'm after.

:)

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Offline voxonda

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Re: Hollow axles?
« Reply #26 on: November 27, 2011, 10:55:15 PM »
I do use the, drilled, oem axles from the 900 DOHC series. They are longer and weigh about half of the 750 ones. I even use them as front axles after shorten them and tap them for a 'secure'- bolt.

And the rear axle:


Rob.
« Last Edit: November 27, 2011, 11:23:44 PM by voxonda »
Better sorry for failing then for the lack of trying.

Offline brandEn

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Re: Re: Hollow axles?
« Reply #27 on: November 27, 2011, 11:52:44 PM »
I do use the, drilled, oem axles from the 900 DOHC series. They are longer and weigh about half of the 750 ones. I even use them as front axles after shorten them and tap them for a 'secure'- bolt.

And the rear axle:


Rob.
Hey Rob how long are those axles?

Offline voxonda

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Re: Hollow axles?
« Reply #28 on: November 28, 2011, 12:32:07 AM »
Hey brandEn,

Have to measure them tonight, but about 1.5 to 2"over.

cheers, Rob
Better sorry for failing then for the lack of trying.

Offline brandEn

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Re: Re: Hollow axles?
« Reply #29 on: November 28, 2011, 12:38:23 AM »
Hey brandEn,

Have to measure them tonight, but about 1.5 to 2"over.

cheers, Rob
I am using a 86 VFR axle on my Dresda swingarm with some spacers. That CB900 axle may be better for me.

Offline voxonda

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Re: Re: Hollow axles?
« Reply #30 on: November 28, 2011, 01:30:28 AM »
Hey brandEn,

Have to measure them tonight, but about 1.5 to 2"over.

cheers, Rob
I am using a 86 VFR axle on my Dresda swingarm with some spacers. That CB900 axle may be better for me.

You can cut new thread on them if necessary. M18x1.5 m/m

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Offline Retro Rocket

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Re: Hollow axles?
« Reply #31 on: November 28, 2011, 01:35:33 AM »
Thanks Rob, more great information once again.... ;)
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Offline voxonda

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Re: Hollow axles?
« Reply #32 on: November 28, 2011, 10:48:33 AM »
Sorry, Franken

My other axles lying in my other storage but compared to the one in my racer it is about 3/4"longer. My mistake.
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Offline crazypj

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Re: Hollow axles?
« Reply #33 on: November 29, 2011, 07:23:55 PM »
Just for S&G I made a front wheel alloy bearing spacer.
 it's 2 oz lighter than the steel one (1.53vs 3.59oz)  ;D  8)
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Offline 754

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Re: Hollow axles?
« Reply #34 on: November 29, 2011, 11:37:13 PM »
 If its identical it should be closer to 1/3 the weight. The exhaust clamps I just built went down to  just under 60 grams from 187  ;D
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Offline crazypj

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Re: Hollow axles?
« Reply #35 on: November 30, 2011, 07:40:12 AM »
Nah, just a piece of 1" 6061 faced to length with a hole in it.  ;D
 If it was identical it would be lighter.
I just did it quick as I had a short piece of bar laying around
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Offline 754

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Re: Hollow axles?
« Reply #36 on: August 09, 2015, 02:44:52 PM »
Anyone gundrilled their axle?
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My next bike will be a ..ANFOB.....

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Offline Retro Rocket

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Re: Hollow axles?
« Reply #37 on: August 09, 2015, 03:31:22 PM »
Anyone gundrilled their axle?

Is it made of the right material to drill..?
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Offline calj737

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Re: Hollow axles?
« Reply #38 on: August 09, 2015, 03:51:34 PM »
Anyone gundrilled their axle?
Is it made of the right material to drill..?
Drill or bore, or mill, it's all the same really, Mick. I just spent the day yesterday drilling a piece of rod before turning it in the lathe for a shoulder, and then milled a slot. 3 in 1 processes for a single hollowed tube.

"Gundrilled", Frank? Not familiar with that term.
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Offline Retro Rocket

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Re: Hollow axles?
« Reply #39 on: August 09, 2015, 04:20:59 PM »
Anyone gundrilled their axle?
Is it made of the right material to drill..?
Drill or bore, or mill, it's all the same really, Mick. I just spent the day yesterday drilling a piece of rod before turning it in the lathe for a shoulder, and then milled a slot. 3 in 1 processes for a single hollowed tube.

"Gundrilled", Frank? Not familiar with that term.

Yeah, I'm aware of that mate,  later model bikes with hollow axles, the axles are made from a more rigid alloy, I was wondering if the old Honda axles would be as strong drilled out...?  I think what Frank means is Gun drilled, as in,  bored out like a barrel of a gun...?   ;)
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If You can't fix it with a hammer, You've got an electrical problem.

Offline 754

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Re: Hollow axles?
« Reply #40 on: August 09, 2015, 09:14:08 PM »
Once you drill past 5xdiameter you are in deep drilling..
 To drill an axle you are around 18 times diameter with say a 10 mm hole.. , half of that if you go from each end.
 Gundrills are for deep holes in production, and tend to have coolant pumped thru them...be sure yet quickest way if you were doing a lot of them.

 I would be far less worried about drilling an axle with a reasonable size hole, in unknown material....than I would be about trying to heat treat an unknown material..
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Offline scottly

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Re: Hollow axles?
« Reply #41 on: August 09, 2015, 09:29:44 PM »
I've seen something about how the innermost part of a shaft relates to the strength of the shaft, but I don't remember the percentages. Basically, the size of the hole means removing the same strength as a solid rod of the same material. A 1/8" hole in a 1.00" shaft wouldn't have as much weakening as a 15/16" hole.
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Re: Hollow axles?
« Reply #42 on: August 16, 2015, 11:04:14 AM »
Anyone gundrilled their axle?
I do it regularly for the swingarm bolts. On a mini-lathe, it's painful!
:(
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