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RustyCas

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Reply with quote  #1 
So what do you make of the photos below?  This is a spindle on a lawn mower deck.

Asking for a friend.

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trapper

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Reply with quote  #2 
Is that "air bearing" the top or bottom of the spindle? Looks like a dry bearing with a little help from protruding rocks or edge of driveway or some other hard object.

Had a Roots-type blower do that recently. Still don't know where the missing balls went to. [eek]
RustyCas

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Reply with quote  #3 
Yea, that "air bearing" is on the blade end.  Bearings were "sealed" but not protected.  The new spindle has a separate metal shield that protects that bearing.

My "friend" says there was a lot of vibration, but he could see the idler pulley bouncing around and thought it was a belt problem. "He" didn't notice it until after he replaced the engine (different issue) and he thought the belt alignment looked a little out of whack, and was trying to figure that out. You'd think "he" would know better.

The shoemaker's children have no shoes.

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Walt Strong

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Reply with quote  #4 
Give "him" a pair of Virtual Image Goggles so that it all looks good!
Danny Harvey

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Reply with quote  #5 
I had a similar moment with the AHU under my house.  While the mechanic was trying to spin the motor shaft he asked me what I did for a living...
RustyCas

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Reply with quote  #6 
I listened to the fan on the condensing unit outside my bedroom for weeks.  Eventually it was so loud I almost couldn't sleep.  The next morning on the way to the truck, I thought I should probably look at it.  Walked up to it, and literally while I was standing there, it slowed to a stop, buzzing very loudly.  Ran and opened the breaker, and replaced it later that day. [frown]
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Walt Strong

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Reply with quote  #7 
"while I was standing there, it slowed to a stop, buzzing very loudly."

Is this an example of a shoemaker who wears worn out shoes? I plead guilty as well!

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ivibr8

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Reply with quote  #8 
All the while this was posted, I was tempted to ask if you took vibration data to confirm bearing on your lawn mower was going bad.....but I decided not too   [tongue]
Ralph Stewart

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Reply with quote  #9 
I am not sure if this question(s) were in a joking manner or there was something serious about the original posting.

I would imagine that this thing had been screaming for help for quite some time. [smile][confused]

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Reply with quote  #10 
A friend of mine asked if I could detect a wheel bearing fault on his Nissan front wheel drive SUV.  I said sure.  So we put it up on stands, reflective tape and a 404B and stand back with long cables.  Sure I identified which side. clear fault frequencies, order tracking.

He only wanted to spend to have 1 side replaced as he was selling and a tightwad when it comes to cars. Off course you should change both sides.

When he aske what I would charge for that his jaw dropped.

So Rusty, if someone had to pay it would be cheaper to buy a new lawnmower.

But I like your enthusiasm and dedication to apply what is essentially only time for you. Not income. rgds
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Reply with quote  #11 
I reckon that Rusty was getting his wife to mow the lawn and it why it was not noticed earlier. LOL
OLi

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Reply with quote  #12 
I trained my sons on involuntarily brg detection from backseat detection of the rear wheel hub units of a 4WD and their natural limit eg. loud complaint of the noise level was in one case to be verified as about 4 times higher than when change should be planned when spinning the bearings outside the car and getting readings from the failing bearings just to check what margin we had with this system. I normally just turned up the stereo.... 
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DCD

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Reply with quote  #13 
Hey Rusty, tell "Your Freind" his mower has a bad case of grease worms. Waterproof grease last the longest and don't trust pre-greased from the factory, pop the seal, clean out the cheap stuff add a premium grease.
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