Wheel Hub Cone Removal

 For the life of me I can't get the cones/cups/races or whatever you call them out of my hubs to change bearings.

 

I'm hitting it with a 1/2" mild steel rod and a 2 pound gympie hammer and they never move.

 

The hub is sitting on concrete.

 

Any tips?

 

Can I cahnge bearings without changing the cones?


Posts: 460

Date Joined: 19/06/14

Easy

Fri, 2019-12-13 21:46

 Go and buy a complete new assembly, buy three and you've got a spare for a rainy day ...:D

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 My wife understands why I clean my rods n reels in the shower....

 

Posts: 230

Date Joined: 06/02/14

8 weeks

Fri, 2019-12-13 22:04

 Martins trailer parts only had balck hubs, galvanised are 8 weeks away

Posts: 20

Date Joined: 06/10/13

I would of thought that would

Fri, 2019-12-13 21:49

I would of thought that would do it.

When you get one out cut through one side with an angle grinder

and use it to hammer the new one in and it wont get stuck.

sea-kem's picture

Posts: 11908

Date Joined: 30/11/09

 You need something heavier

Fri, 2019-12-13 22:04

 You need something heavier than 1/2 inch rod and bigger diameter. I've had some pipe turned down as my bearing race removal/ install kit. Makes life a lot easier.

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Posts: 3983

Date Joined: 01/02/10

 I have a selection of

Fri, 2019-12-13 22:32

 I have a selection of sockets I use for that job. 

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Posts: 230

Date Joined: 06/02/14

How

Sat, 2019-12-14 13:28

 How do you get a socket through the small end to punch out the large cup?

The Saint's picture

Posts: 366

Date Joined: 30/01/13

 If you have access to a

Sat, 2019-12-14 08:51

 If you have access to a welder, run a bead around the inside diameter of the old bearing cup. Let it cool, cup will shrink and should then come out easily.

Posts: 8

Date Joined: 01/06/19

What he said ^^^^ Do the

Sat, 2019-12-14 11:51

What he said ^^^^

Do the weld trick every day at work, never fails.

Posts: 80

Date Joined: 27/01/10

 1/4" punch and small taps

Sat, 2019-12-14 12:35

 1/4" punch and small taps with the hammer. Trick is to rotate the punch around the bearing in at least 3 spots (side to side like doing up wheel nuts) so to keep the bearing coming out evenly. Big hits wont knock it out, just twist it and bind up. Been my preferred method for a few decades.

carnarvonite's picture

Posts: 7906

Date Joined: 24/07/07

Force

Sat, 2019-12-14 18:38

 Don't use force, get a bigger hammer. As stated above, give it a hit one side then one one the other side so that it comes out evenly.

Don't throw the old cones away, use them to knock the new ones in with

ranmar850's picture

Posts: 2434

Date Joined: 12/08/12

yeah, bigger hammer, weight beats hitting something hard.

Sun, 2019-12-15 19:49

 4lb gympie. I use a large punch, as others have said, work your way around the circumference, don't expect it to move if you only concentrate on one or two spots. I have seen Loctite products used to fit them , totally unnecessary unless the cone is a really loose fit. If this has been used, heat may be needed. Once you have them out, put them on a bench grinder to make them a loose fit, to fit the new ones nice and square. then keep them in the tool box for next time.