Does getting magnetized affect the working of spool ball bearings? I seem to remember a manufacturer(?) writing a warning about this, but that got lost in the fog of my elderly brain. Recently, I dropped a bearing on the magnets of a Daiwa reel while taking it out. After cleaning it, I spun it on a bearing check tool and surprise, at the end of the spin, it now reverses direction for maybe half a turn. My flabber's completely gasted!
Does anybody understand what's going on?
Magnetized spool ball bearings?
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Magnetized spool ball bearings?
Never moon a werewolf!
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Re: Magnetized spool ball bearings?
The bearings in a reel are mild stainless 304 if that at best.
Dropping one would demagnetise it to a degree, passing it through a demagnetisor would also do the trick.
However I see no reason slightly magnetic balls doing any harm, as in Daiwa reels they live in an area highly magnetic. And in turn DC reels that's a lot of goings on in there too...
Dropping one would demagnetise it to a degree, passing it through a demagnetisor would also do the trick.
However I see no reason slightly magnetic balls doing any harm, as in Daiwa reels they live in an area highly magnetic. And in turn DC reels that's a lot of goings on in there too...
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Re: Magnetized spool ball bearings?
Slazmo to the rescue again!
Many thanks for your help, Slazmo. Apparently, the problem was a magnetized ball bearing; a couple of demagnetizer passes and the ball bearing now spins longer on the tool, without any 'backspin' at the end. Also, a finger flick now produces a spin time of the reel spool that's almost twice the duration it was before demagnetizing.
Of course, this isn't even close to a scientific experiment, but it sure points in the direction of a magnetized bearing. Said bearing had been in direct contact with both Daiwa brake magnets, which is the worst case scenario, as compared to 'close' contact where I believe the square root rule comes into play to rapidly decrease the strength of the magnetic force. What do you think?
Thanks again!
Many thanks for your help, Slazmo. Apparently, the problem was a magnetized ball bearing; a couple of demagnetizer passes and the ball bearing now spins longer on the tool, without any 'backspin' at the end. Also, a finger flick now produces a spin time of the reel spool that's almost twice the duration it was before demagnetizing.
Of course, this isn't even close to a scientific experiment, but it sure points in the direction of a magnetized bearing. Said bearing had been in direct contact with both Daiwa brake magnets, which is the worst case scenario, as compared to 'close' contact where I believe the square root rule comes into play to rapidly decrease the strength of the magnetic force. What do you think?
Thanks again!
Never moon a werewolf!
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- Pro Angler
- Posts: 1513
- Joined: Fri May 08, 2015 11:43 pm
- Location: Gold Coast, Queensland. Australia
Re: Magnetized spool ball bearings?
This came up on my memories... But I wouldn't let it all worry you, a little magnetic force...
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