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1Back to top Go down   Gluing a bearing in place  Empty Gluing a bearing in place Thu Mar 10, 2016 10:08 pm

Kyle10

Kyle10
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I am about to glue a bearing race in place in order to prevent it from spinning. What is the best way to prep the metal for the epoxy? From what I've read I am not only supposed to clean it but abrade it slightly. I'm not too keen on doing this unless it's absolutely necessary.
I'm using Loctite 272. 
Gluing the output shaft bearing in place, as per recommended.


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1985 K100rt 0052183
1983 Honda VF750 007713 
    

2Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 7:00 am

Dai

Dai
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Which bearing?


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1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

3Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 10:32 am

Point-Seven-five

Point-Seven-five
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Is that Loctite 272 recommended for locking bearings?  You mention epoxy, but I think Loctite has a specific product for locking bearings against spinning.

As far as roughing up the surface, a light scuff with 320 grit should be enough.  I would tape up the bearing to make sure none of the abrasive gets in it.


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Present: 1991 K100RS "Moby Brick Too"
 
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

4Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 1:22 pm

Kyle10

Kyle10
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I'm converting a 6-rivet to a later 12-rivet output shaft. The latter has this bearing cast with a "shoulder", whereas the earlier bearings (like this one) feature a circlip to mitigate movement. 

Since the shouldered bearing cannot be fitted onto an earlier engine block, Clymer (and a BMW bulletin of yore) recommends that this bearing be glued into place to prevent possible spinning and fore/aft movement. 

Gluing a bearing in place  Output10
I hate to admit it but it kinda looks like this bearing has done some slipping/spinning. Anyhoo, here's my situation: two smooth, machined metal surfaces on which 'glue' must find purchase. 
I chose Loctite 272 - after poring over forums and adhesive sites - for its anaerobic, heat and strength capabilities.


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

5Back to top Go down   Gluing a bearing in place  Empty Bearing fix Fri Mar 11, 2016 4:30 pm

smoll1

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Hi

I emailed loctite when I rebuilt my engine and output shaft. The original number loctite can't remember the number was no longer made.

They said I should use loctite 641 bearing fix.

I used it and have had no problems.

Hope this helps

    

6Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 6:27 pm

Kyle10

Kyle10
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It does help, smoll1, and thank you. But looking at the specs its rated to 300F / 149C. Is that a safe range? 


Gluing a bearing in place  Avatar10


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

7Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 8:49 pm

Holister

Holister
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Locktite 272 is a threadlocker. You need a retaining compound. There are 2 types, 'press fit' and 'slip fit' with high temp and oil resistant products.

As far as preparation, have a read of these.

The “WHEN, WHERE & HOW” to Use Loctite ® Maintenance Products

Locktite Epoxy Application Guide


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1989 K100RT     VIN  0097367 (naked)  
1996 K1100RS   VIN  0451808
 Gluing a bearing in place  Austra12    Fuel:  95 Octane
Engine Oil: Nulon Full Synthetic 15W50
Gear Box Oil:  Nulon Synthetic 75W90
    

8Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 9:12 pm

Kyle10

Kyle10
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Kapt, thank you. Illuminating reading, to say the least.
Gluing a bearing in place  78846
Looks like smoll1 is right; 641 is the business. Point Seven-Five is right as well; a light scuffing w/a mild abrasive, followed by cleaner/degreaser. 

Cool. Thanks, all.


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

9Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 10:46 pm

Rick G

Rick G
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Once you have roughed up the surface clean it with acetone. Loctite recommend MEK but I dont like using it, not very nice stuff to be around.


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"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
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Bikes 1999 K1100 LT with a Big Block 1200
    

10Back to top Go down   Gluing a bearing in place  Empty Re: Gluing a bearing in place Fri Mar 11, 2016 11:08 pm

Kyle10

Kyle10
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Gluing a bearing in place  112350 Thanks Rick. Will do. Heluva lot cheaper and on my shelf already.


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

11Back to top Go down   Gluing a bearing in place  Empty Bearing fix Sat Mar 12, 2016 5:53 am

smoll1

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I thought about temperatures too. I confirmed this with loctite twice as was not sure and they confirmed it was OK. Seems ok. I also changed to 12 rivet output shaft. I noticed old one had been spinning too. This why contacted loctite as no damage had been done but suppose could of if it continued Very Happy

    

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