Is 1/4 inch the same as 6mm? (2024)

Aug 01, 2012, 08:54 PM

Registered User

Thread OP

Help!

I'm looking at getting this prop adapter, but it says that the "shank" is 1/4 inch in diameter, which is 6.35mm. I have a spinner that fits on 6mm prop adapters. Will this work?

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Aug 01, 2012, 09:33 PM

eflyguy

Is 1/4 inch the same as 6mm? (1)

Close enough!
..a

Aug 01, 2012, 09:36 PM

Registered User

Thread OP

So it will work?

Aug 01, 2012, 10:08 PM

Registered User

Whoops I posted in the wrong thread. I took of my origional post

Aug 01, 2012, 10:12 PM

Wake up, feel pulse, be happy!

Is 1/4 inch the same as 6mm? (2)

That 0.35mm SOUNDS tiny, but it really can make a significant difference. Depending on the spinner material you may just be able to force-thread it on and then "clean up" by cranking it straight down over the threads with the prop nut, but you'd be best off scraping a small amount of material out of the inside of the hole. It only takes a little.

Aug 01, 2012, 10:26 PM

Registered User

Is 1/4 inch the same as 6mm? (3)

really? Google is your friend!

Aug 01, 2012, 10:38 PM

Registered User

6mm equal to 0.2362 inches.

Edmond

Aug 01, 2012, 11:14 PM

Si Vis Pacem Para Bellum!

Is 1/4 inch the same as 6mm? (4)

Yes like already mentioned, Google is your friend! You can search for cool tools like this:

http://www.industrial-enclosures.com...n-mm-inch.html

Aug 02, 2012, 02:32 AM

Registered User

Your 6mm spinner will "work" on a 1/4" shaft, but you may have to ream out the hole a little to get it to slide on easily.

Aug 02, 2012, 03:37 AM

Youtube channel : solentlifeuk

Is 1/4 inch the same as 6mm? (5)

Your friend in this is a Prop tapered reamer.

Do not drill as it will be off-centre.

The tapered reamer will sort props, spinners, edf rotors ... so many thing that need that hole opened up but still centred etc.

For about $4 on Hobby King .. or down to local hardware store and buy one ..

Nigel

Latest blog entry: Life goes on and new boat

Aug 02, 2012, 03:44 AM

Registered User

Is 1/4 inch the same as 6mm? (6)

Quote:

Originally Posted by Andy W

Close enough!
..a

Hmm not for the Hubble Telescope Is 1/4 inch the same as 6mm? (7)

Aug 02, 2012, 05:58 AM

Dude, get me some ice cream!

Is 1/4 inch the same as 6mm? (8)

whats a prop reamer?

Aug 02, 2012, 06:13 AM

Youtube channel : solentlifeuk

Is 1/4 inch the same as 6mm? (9)

Quote:

Originally Posted by Felt_ripper 23

whats a prop reamer?

https://www.hobbyking.com/hobbyking/s...idProduct=7689

There you go ..HK have various versions.

As you see its a tapered sharp 3 edge cutter. It's better than a stepped reamer because even after sharpening you do not lose ability to ream to desired size. A stepped reamer as you sharpen actually gets smaller.

Believe me - once you have one of these - props etc. are a doddle to fit to shafts.

Nigel

Latest blog entry: Life goes on and new boat

Aug 02, 2012, 07:44 AM

Redacted per NSA "suggestion"

Is 1/4 inch the same as 6mm? (10)

A prop adapter should be the proper size to fit a shaft. .35 mm variance can create slippage and even wobble. When dealing with mechanical items tolerances can be as low as 1/64 of an inch.

EDIT
Leaving previous post up, but I misread it as the prop adapter was larger than the motor shaft.

As others have said a prop reamer on the spinner and you'll be fine.

Is 1/4 inch the same as 6mm? (2024)
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