DUMB QUESTION - I SHOULD KNOW
Submitted: Saturday, Nov 10, 2007 at 20:41
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Max - Sydney
How do you get bearing cones out of wheel hubs?
Dumb I know, but about 40 years ago, Dad gave me a length of brass rod which I have always used to tap them out or in. Does not take that long, and for all the times I do it has been fine. Just have to dress the ends off the rod occasionally. The brass does not damage the
bore in the hub or the cone.
But, I have dressed it down to a length where I cannot reach through the hub.
I could get another bit, but just wonder if that's the best way to do it. Will a gear extractor do the job, or is there a better way? Obviously I do so few that a press is not an option, especially as I do the caravan
wheels at the storage place.
What's the go?
Max
Reply By: Member - Kiwi Kia - Saturday, Nov 10, 2007 at 20:44
Saturday, Nov 10, 2007 at 20:44
Use a brass drift as you have described.
AnswerID:
271135
Reply By: Member - Doug T (Qld) - Saturday, Nov 10, 2007 at 20:47
Saturday, Nov 10, 2007 at 20:47
I've always used a good steel punch .If you have a look in there you will see little scolloped out sections specially for that purpose,
AnswerID:
271136
Reply By: Steve from Top End Explorer Tours - Saturday, Nov 10, 2007 at 21:16
Saturday, Nov 10, 2007 at 21:16
I use a long socket extension, I had several and just sacrificed the cheep one.
It will never fit a ratchet or socket again, but works in the taking out and putting in a bearing cone every time without any damage.
Cheers Steve.
AnswerID:
271140
Reply By: Member - Christopher P (NSW) - Saturday, Nov 10, 2007 at 21:19
Saturday, Nov 10, 2007 at 21:19
Hey Max, you can use the old bearing case to press them in with or a brass/copper drift, or a thick pin punch to punch them out with! Me i use a big pin punch or chisel and a 4lb lump hammer or a decent size ball pein hammer!
Never had a problem, or you can bring some beer up to
newcastle and use my little 12 ton press!!!!! Depending on were you from in
sydney???
or go and buy some more brass solid bar!
Cheers Have fun!
AnswerID:
271143
Reply By: datsuncredible - Saturday, Nov 10, 2007 at 22:04
Saturday, Nov 10, 2007 at 22:04
Max, the main thing is that what ever you use is softer than the bearing material ( most materials are ). Brass or copper dollies are great, not sure what the cost is to buy them. I often use keysteel, it is made from a reasonably soft steel, not as soft as copper or brass, but can be bought in a variety of sizes ( eg. 12mm x 12mm x 300 long ) and are cheap, may $3 - $5 for 12mm square. Buy a 3 or 4 grind them to different points and keep them in your toolbox. Shops like Blackwoods keep them in stock.
my 2 bob
Russell.
AnswerID:
271149
Reply By: Hoyks - Saturday, Nov 10, 2007 at 23:55
Saturday, Nov 10, 2007 at 23:55
I use a brass drift too.
When
mine wore down, and me being tight, I drilled a hole in the end and glued a 1/4" pin punch in it.
So that gave me another 6 inches I can grind away so it should last a while yet.
AnswerID:
271165
Follow Up By: Member - Phillip S (WA) - Sunday, Nov 11, 2007 at 01:01
Sunday, Nov 11, 2007 at 01:01
Just done my caravan...used a brass 1/2" drift....no dramas...it's a tandem
FollowupID:
534142
Follow Up By: Member - Phillip S (WA) - Sunday, Nov 11, 2007 at 01:01
Sunday, Nov 11, 2007 at 01:01
Just done my caravan...used a brass 1/2" drift....no dramas...it's a tandem
FollowupID:
534143
Reply By: Member - Bucky (VIC) - Sunday, Nov 11, 2007 at 04:02
Sunday, Nov 11, 2007 at 04:02
Dose not matter what you use, just take your time, and never belt the be-jesus out of it.
Last time I did my camper trailer bearings, I used a quality punch, and just worked my way around the lockout rings ( think thats what you call them )
But I did like the idea about the brass drift.
Cheers
Bucky
AnswerID:
271172
Reply By: Ozboc - Sunday, Nov 11, 2007 at 06:53
Sunday, Nov 11, 2007 at 06:53
Very simple actually - the cones - or the correct terminology is the Outer race ( tapered angle roller bearing right ? )
weld the face where the bearing runs --- and a good 2 cm top and bottom --- this will cause the bearing to reduce size ( OD ) considerably as the weld cools and the race should virtually fall out with very little effort
But off coarse if your welding resembles bird dropping -- this method will not work for you ...
if that scares you -- you could buy a split collar set with slide hammer - expensive but works
well ... great for small bearings
Boc
P.s from your terminology ( and really does give it away that your not a person on the tools ) - i think it would be best left to people in the know :)
AnswerID:
271176
Reply By: Member No 1- Sunday, Nov 11, 2007 at 13:53
Sunday, Nov 11, 2007 at 13:53
i use what ever i can find
i work on the principal ..if they need to come out then they need replacing.
to put the new ones in i use a socket of suitable size
or a piece of copper tubing ..right diameter of course
AnswerID:
271215
Reply By: Max - Sydney - Monday, Nov 12, 2007 at 08:49
Monday, Nov 12, 2007 at 08:49
Didn't turn on the 'puter yesterday, and really appreciated the feedback waiting for me this am.
I guess get another lump of brass (or put a punch in the one I've got as an extension) is the way to go, but will rake through the pile of sockets and see if I've got a couple that would help.
A couple of specific replies
Thanks to Christopher P for the offer of your press - I usually do the van
wheels in the storage yard & the trip would take a bit of time.
And Ozboc is right - I never worked on the tools, but Dad taught me to do most of the work on a car and in 40 years I've never had a bearing that I've fitted or repacked fail on me However, before WW2 when Dad did his time, "Timken Tapers" had a cone and a cup!
I should use the right terms but its easy to slip into what you grew up with!!
Thanks everyone for an instant tutorial bringing me up to date. I appreciate all I learn on the site
Max
AnswerID:
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