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Post by lolly on Mar 25, 2019 11:44:52 GMT 1
Hello All
I've had my 4LO for 15 years ; I do on average 300 miles a year ; I have just had my fourth rear wheel bearing collapse ; admittedly they are not genuine bearings (wont pay fowlers price)
does anyone have any ideas what's going wrong ? |
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Post by headcoats on Mar 25, 2019 11:54:26 GMT 1
What make are they ?
How are you putting them in ?
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Post by lolly on Mar 25, 2019 12:01:17 GMT 1
What make are they ?
How are you putting them in ?
not sure of make ; for convenience I've always got them from Ebay ; with regards to installing them just tapped them in with a socket . But I would have thought even poor quality ones would last longer than they are at present . |
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Post by headcoats on Mar 25, 2019 12:07:28 GMT 1
You can get good make bearings off ebay, just get the size you want (says on the bearing)
Koyo , SKF, FAG etc
Just thinking is something putting a side load on the bearings to fail early ?
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Post by JonW on Mar 25, 2019 12:47:06 GMT 1
I reckon you hit em in one tap too many, Ive seen many people do that, you should not be stressing the inner race by hammering in the outer too far.
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Post by looey on Mar 25, 2019 15:10:22 GMT 1
I always stick the bearings in the freezer for a couple of hours and warm the centre of the wheel with a hair dryer or carefully with a heat gun, then they tap in very easily using the outer race
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Post by midlifecrisisrd on Mar 25, 2019 16:02:48 GMT 1
As said buy a good branded bearing
Some are like cheese
Steve
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Post by muttsnuts on Mar 25, 2019 16:30:39 GMT 1
koyo bearings aren't much money
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Post by cb250g5 on Mar 25, 2019 17:59:51 GMT 1
Are you sure the bearing spacer is in the wheel? If so it should be a tight fit between the inner races.
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Post by mellow on Mar 25, 2019 18:47:28 GMT 1
the dt i bought off billbot had 3 sets of bearings in a BRAND NEW WHEEL  I fitted a new genuine spacer and was told by a very good engineering place who do wheels not to tighten up like a gorilla. hand tight was more than enough. Been fine ever since  |
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Post by earthman on Mar 25, 2019 19:59:24 GMT 1
the dt i bought off billbot had 3 sets of bearings in a BRAND NEW WHEEL I fitted a new genuine spacer and was told by a very good engineering place who do wheels not to tighten up like a gorilla. hand tight was more than enough. Been fine ever since You are talking about the axle nut here? Surely the torque setting in the manual would be more appropriate. |
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Post by rich on Mar 25, 2019 20:08:50 GMT 1
Are you sure the bearing spacer is in the wheel? If so it should be a tight fit between the inner races. Indeed this. Only drive the bearings on the outer race and make sure they are seated fully against the shoulder of the wheel. You should hear the sound change when you are knocking them in to show they are seated fully. Also make sure the centre spacer is square and is in firm contact with the inner edge of both bearings. Ideally when you rotate the inner of one bearing, the spacer should also rotate the other bearing. |
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Post by mellow on Mar 25, 2019 23:54:41 GMT 1
the dt i bought off billbot had 3 sets of bearings in a BRAND NEW WHEEL I fitted a new genuine spacer and was told by a very good engineering place who do wheels not to tighten up like a gorilla. hand tight was more than enough. Been fine ever since You are talking about the axle nut here? Surely the torque setting in the manual would be more appropriate. I'm not talking finger tight. Just not with a bar. Not come undone or done bearings since👍😁 |
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Post by Deleted on Mar 26, 2019 0:06:11 GMT 1
I always stick the bearings in the freezer for a couple of hours and warm the centre of the wheel with a hair dryer or carefully with a heat gun, then they tap in very easily using the outer race I stuck some wheel bearing in the freezes one night while I wasn't getting into a good beer session. Took me a month to find the buggers after I got new ones. |
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Post by tacky1 on Mar 26, 2019 3:45:05 GMT 1
The only thing I can think of is the spacer in the center of the wheel is the wrong size. The bearing centers are getting pushed in to meet the spacer and if the spacer is wrong, the bearing will disentegrate.
Make sure the inner race is touching the spacer with no gap.
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Post by cb250g5 on Mar 30, 2019 23:58:17 GMT 1
I'm guessing as the OP is now after a bearing spacer, we were right.
I should buy a lottery ticket...
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