Replacing Boat Trailer Bearings Problem

Just after some advice, I am re-doing my bearings at the moment and it was really hard to get the hub off. The back bear didnt come off with the hub and took some hitting with a punch and hammer to remove, the rear one was really tight. Last time I did them it came straight off, the only thing I can think off is I had the axle galvenised when I did a refurb on trailer last year. The part that the hub goes on was then machined back.

Just wondering what I should do? how tight should the bearings be on the axle?

 

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ranmar850's picture

Posts: 2232

Date Joined: 12/08/12

They normally come off with the hub

Sun, 2018-12-09 15:54

 You are really relying on thr rear seal to pull them off, as due to being a taper, the hub can come off and leave the bearing there with little effort. I have had them need to be gotten off separately, and i've been doing them regularly on different axles for a long time. One thing to consider--as they are a very neat slip fit, hitting them with a punch means you are hitting them on one side, and it can cause them to "cock", and jam. I've actually used a 3-jaw puller to shift one, once--didn't take much effort using that, as you are applying equal force right around the circumference,  but any other approach wouldn't shift it.

The bearings just need to be a neat slip fit on the axle--it's the cones fitted into the hub  you don't want moving.

sea-kem's picture

Posts: 11671

Date Joined: 30/11/09

 They should just slip on

Sun, 2018-12-09 15:54

 They should just slip on Simo with a smear of grease. You maybe had some salt water ingress, I'd get some fine wet and dry and give it a clean. 

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Simo_'s picture

Posts: 1436

Date Joined: 13/11/06

Where do I get wet and dry

Sun, 2018-12-09 16:07

Where do I get wet and dry from?

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Faulkner Family's picture

Posts: 15160

Date Joined: 11/03/08

 any hardware will have it or

Sun, 2018-12-09 16:11

 any hardware will have it or places like repco

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sea-kem's picture

Posts: 11671

Date Joined: 30/11/09

 Get some 100-120 grit, wet

Sun, 2018-12-09 16:13

 Get some 100-120 grit, wet it down and it will do the job. 

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Simo_'s picture

Posts: 1436

Date Joined: 13/11/06

thanks guys, I will give that

Sun, 2018-12-09 16:17

thanks guys, I will give that a try

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Simo_'s picture

Posts: 1436

Date Joined: 13/11/06

That did the trick,

Sun, 2018-12-09 17:50

That did the trick, fishwrecked to the rescue again. Thanks guys :)

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