(upbeat music)
- Hi, I'm Matt, technical trainer for VibrAlign ACOEM.
Today we're going to talk about and demonstrate
bearing removal and installation.
Prior to disassembly and reassembly,
we have to make sure we have the proper tools.
Of course, safety glasses, gloves,
safety shoes, and cleaning.
It's very important that we clean
before we disassemble and prior to reassembling.
The tools required are bearing polar,
micrometer,
digital caliper,
flat blade screwdrivers,
socket and ratchet,
micrometer
and telescoping gauge,
and grease gun.
What is gonna entail
is disassembly of this rotating element.
I'll disassemble the element,
take the bearing assembly out.
I'm gonna use the pullers to remove the bearings.
Then I will clean the shaft
and use a press to re-install the bearings.
Now let's take a more detailed look at that.
Okay the first thing you wanna do before disassembling
so you can determine what parts you need
is clean the best you can, clean the housing,
wipe everything down.
I've had to use a pressure washer on pumps that I worked on
and clean them the best I could before I disassembled them.
Once you've cleaned it the best you can,
disassemble the pump.
(gentle music)
Before you begin your bearing installation,
you should determine the parts you'll need.
new bearings,
seals that kind of thing.
When you do disassemble,
make sure you clean everything and inspect it
and lay your parts out
in order to make the process is expedient
and clean as possible.
Mark here your shafts
and your bearings to make sure the fits are correct
and you've determined what you need.
You wanna use the proper installation procedures.
for instance, we use the press today to push the shaft
into the bearings.
In order to do no damage to the bearing,
the best process for installing the bearings on a shafts
is using a press.
You don't wanna use a hammer and a drift.
I know in the old days
it seems like that's the way it was done.
Once that's done, you can begin to reassemble the pump.
Make sure your grease fittings are clean,
your grease gun is clean
and you're using the correct grease.
This particular pump is grease bearings,
a lot of your pumps will be oil bath.
As far as when or whether you should change bearings,
the best way to determine that is uses mark machine checker
to check your bearings,
using the SMC For instance.
If you get an indication they're a little noisy,
you can add grease,
recheck them, and most of the time that will fix it.
You can actually leave your accelerometer on the bearing
and as you add grease
you can see that the vibration goes down.
So we're gonna take a two minute break.
Please make questions for our Q and A.
(upbeat music)
- I think anybody who has pumps or fans,
any kind of equipment that's mounted up to a motor,
should take this class.
- You can always read the instructions
and go through step by step,
but stuff always comes up, especially work on old equipment,
it's always good to talk to somebody who's been doing it
for 30 years.
- What intrigued me about the class,
is all of the precision alignment,
vibration,
analysis everything the class offered.
- Most of the classes we've been to
that you just sit there all day in class
with a book and a PowerPoint.
- A lot of other classes I have,
they kind of just read the book to you.
- I think we spent at least 80% hands on,
probably more,
which made it a whole lot better.
- Our RPM class is really good for anybody in the industry.
We're teaching some old skills and some new skills.
(upbeat music)
- Number one thing is the instruction that you're getting,
the knowledge that they have hands on knowledge,
not book knowledge but hands on experience knowledge
where they can in layman's terms
tell you what they're talking about
by giving you a past experience.
- You know we have brand new technician
straight out of tech school.
We have engineers with two or three decades
or more of experience.
We've had maintenance managers and supervisors.
Everybody benefits from that.
- This I'm able to ask question after question.
I was just talking to Stan about
a really unique problem I'm having
and he's actually helped out a lot.
- It's time well spent.
You're, gonna to learn a lot
and it's going to be fun,
it's not a boring class.
- It's a good class.
I think any mechanic and any industrial site,
power plant, refinery,
water treatment, whatever it is, it's all the same.
It's definitely not going to hurt.
- Awesome class, I've got to tell you straight up
some of the best training I've ever been, if not the best.
(upbeat music)
- Thanks for submitting your questions
let's have a look at them
and see if I can give you some answers.
Check my phone here.
First question, why can't I use a brass bar
and a hammer to install a bearing on a shaft?
It actually increases the,
chances of damaging the rolling elements
from shock load on them.
it also, could allow contaminants,
maybe the chips from the brass bar
or whatever else you're using to,
enter the bearing and contaminate it.
Next question.
How do I determine, what the correct lubricant
should be for my bearings?
The answer is the quickest and surest way,
is to check with the manufacturer's manual
that came with a piece of equipment.
Or if you don't have it,
you can contact the manufacturer.
an example would be Google's pumps,
they have a book out on every pump
that they make and the proper lubricant
for the different temperatures and different applications.
If I'm using a bearing heater,
what's the maximum acceptable temperature?
And it's usually 250 degrees,
you don't wanna go over 250.
You can damage the bearing by changing the metallurgy
or shorten the life and have it, life of the bearing.
in most cases,
it'd be a good idea to use
a bearing heater for bearings that are,
have a 50 millimeter inner race or ID or larger.
I guess we can wrap it up now.
We disassembled this rotating element,
removed the bearing assembly
and changed out, re-installed the bearings
and put it back together.
we have some really good blogs on our webpage,
for bearing installation and maintenance.
I'd be a good resource if you wanna learn more
and please feel free to continue submitting questions.
I'm Matt McCormack.
Hope you enjoyed the webinar and see you next time.