| [ Total Views: 642 | Total Replies: 14 | Thread Id: 101394 ] |
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 Anthiron
A.k.a.: Nicko McKay
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| posted on March 29th, 2013 at 07:04 AM |
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Correct wheel bearing fitment for link pin front?
Hi guys
So I have new wheel bearings and brakes to assemble on my front end.
Currently they are backing plates and bare spindles.
Should the inner bearing be a press fit? What is the best way to get this on straight?
I managed to remove the outer races from 1 drum hopefully I will get the other drum done today. Are these races supposed to be a press fit too?
What is correct procedure?
Cheers
Nicko
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
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grumble
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| posted on March 29th, 2013 at 07:37 AM |
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I assume that you are using the original type ball bearings,a piece of tubing that is a clearance fit is used to fit the inner bearing seat to the
stub axle,fit the inner and outer bearing cups into the hub,pack the bearings with a good quality high temp wheel bearing grease ( I use the caltex
Liplex which comes in a cartridge) fit the inner race into the cup then fit the seal,pack some bearing grease into the void between the bearing cups,a
smear of grease on the seal lip and slide the hub carefully onto the stub axle,fit the outer race into the hub,fit the washer and nut,adjust the
bearing,fit the tab and lock nut,recheck the adjustment and lock the tabs.The main thing to remember is keep everything clean and if you use
disposable gloves such as Black Lightning when you are finished simply throw them away and your hands are clean.
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Anthiron
A.k.a.: Nicko McKay
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| posted on March 29th, 2013 at 07:41 AM |
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Thanks grumble
I am using newer style roller bearings.
I should have been more specific.
What is the best way to fit the outer races into the hubs? Do I need a press?
When the inner bearing and grease seal are fitted to the hub, should the hub just slide onto the stub axle? Or should it be a press fit? Mine is
suuuuppppper tight.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on March 29th, 2013 at 09:21 AM |
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I use a large socket as a drift and just tap them in with a mallet.
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 matberry
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| posted on March 29th, 2013 at 09:31 AM |
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A good pin punch will do but care is needed to keep the race straight in the hub. Both bearing inner races should be a neat slide onto the stub,
otherwise they will be painfully sticking to the stub when servicing the brakes.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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vwo60
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| posted on March 29th, 2013 at 10:19 AM |
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SKF have a good document about different ways of fitting bearings and the impact it has on the life of the bearing, it is very hard at home to fit
them with basic tools, at work all bearing/housings are heated with a induction heater to 120 degrees, but this is impractical at home, i use a
hydraulic press for the outers on my cars and as Matt says the inners should just slide on.
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 29th, 2013 at 10:28 AM |
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If you are converting from early ball bearings to tapered rollers, there may be a diffetence in the tolerance on the stub axle.
It IS the same nominal size, but i do recall a tolerance/fit difference, particularly on the inner bearing.
Otherwise check for burrs(Raymonds).
Use a good work shop manual and you will learn alot.
| Quote: | Originally
posted by westi
That's mad Alan.
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Anthiron
A.k.a.: Nicko McKay
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| posted on March 29th, 2013 at 11:37 AM |
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The inner closest to the backing plate is definitely not a neat slide onto the stub. I would have to tap the bearing onto the stub.
Is this because of the roller bearings? Is there a solution to this?
Matt - can I pay you to fit the outer races into my drums?
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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matberry
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| posted on March 29th, 2013 at 11:52 AM |
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Yes mate, call if you wish
use emery tape to sand the stub to size
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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Anthiron
A.k.a.: Nicko McKay
Compulsive Aussie Vee Dubber
The Baja Rejuvenation Begins
Posts: 4936
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Registered: October 1st, 2003
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Location: Buderim QLD
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| posted on March 29th, 2013 at 12:19 PM |
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Cheers Matt.
Couldn't get through on your mobile.
Would Monday be a good time to pick up the engine and bring the drums down?
Gotta pack it in for the day now as I have a wedding to go to.
I'm eager to get this thing rolling again.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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Anthiron
A.k.a.: Nicko McKay
Compulsive Aussie Vee Dubber
The Baja Rejuvenation Begins
Posts: 4936
Threads: 310
Registered: October 1st, 2003
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Location: Buderim QLD
Theme: UltimaBB Pro Blue ( Default )
Mood: Hell hath no fury like a womans scorn for sega.
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| posted on March 31st, 2013 at 07:29 PM |
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Thanks for the advice guys.
New races are in the drums after some advice from Matt.
Sanded the spindle lightly and now have a good fit for the inner bearings.
62/60 model bug eye baja bug, (Full Build in Progress)
1974 Chevrolet Luv
1970 MK2 Ford Cortina GT
1979 Yamaha RX125 Two Stroke tracker project.
2004 Harley Davidson Sportster XL Custom
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grumble
Son of Jim - Creator of Good
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| posted on March 31st, 2013 at 07:49 PM |
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| Quote: | Originally
posted by Craig Torrens
I use a large socket as a drift and just tap them in with a mallet.
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I don't like to tell people that as a lot of years ago i was doing exactly that when the chrome on the socket shattered and a bit flew into my eye
the pain a few hours was extreme and I also lost some vision due to the doctor and specialist chopping and stuffing about. Eye protection and all
safety precautions.
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vwo60
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| posted on April 1st, 2013 at 06:11 AM |
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I never hit a bearing and i have seen a outer race chipped, i made some aluminium disc's that i use to press the bearing into place and as above it
is best to use eye protection when working on your car doing anything, if you use safety glasses all the time it becomes second nature.
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grumble
Son of Jim - Creator of Good
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| posted on April 1st, 2013 at 07:46 AM |
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| Quote: | Originally
posted by vwo60
I never hit a bearing and i have seen a outer race chipped, i made some aluminium disc's that i use to press the bearing into place and as above it
is best to use eye protection when working on your car doing anything, if you use safety glasses all the time it becomes second nature.
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Back then there was only the old protector safety glasses,the shard came under the glasses, glanced off my nose and deflected into the eye,Supercheap
have sets of the alloy bearing /seal installers and they are reasonably cheap but save a lot of time and the part goes in straight.
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1303Steve
A.k.a.: Steve Carter
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| posted on April 1st, 2013 at 08:34 AM |
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Hi
I use the old out race to get them started and then tap them in with a 25mm brass drift. I usually have to redress the brass drift a few times as it
gets knocked around by the bearing.
Steve
edit you need to feel that dud thud when the bearing bottoms out in the housing otherwise the bearing is not seated properly
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