What blind bearing ...
 

[Closed] What blind bearing puller for small (8mm ID) four bar linkages?

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As about, anyone know where i can get a small blind bearing puller to do seat stay bearings on FSR bikes?

Thanks


 
Posted : 20/12/2011 1:26 pm
 Del
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rawlbolt or similar. proper blind bearing pullers cost ££££


 
Posted : 20/12/2011 1:29 pm
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You shouldn't need one. In between the bearings is a threaded bar that the clamping bolts screw into. Screw a long M6 (or M8) bolt into this and tap it, and it should push the bearing out. Then do the same from the other side.

Do not wang it with a hammer. Tapping should be enough.

Reassemble with lots of grease to help waterproof the bearings from the inside


 
Posted : 20/12/2011 1:35 pm
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rawlbolt

^ genius!


 
Posted : 20/12/2011 1:35 pm
 Del
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ithankyou. 😛


 
Posted : 20/12/2011 1:41 pm
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This works well if you don't want to spend too much


 
Posted : 20/12/2011 2:19 pm
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On a related subject I've got a blind bearing puller set but the collet for 8mm has bust. Anyone know where I can get a spare?


 
Posted : 20/12/2011 2:51 pm
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How well does the rawl bolt work?


 
Posted : 20/12/2011 6:35 pm
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How well does the rawl bolt work?

Very well.
I used to use them for changing wheel/swingarm bearing on my MX bikes.
Drop the bolt into the bearing, tighten it up and just tap the bearing out.


 
Posted : 20/12/2011 6:42 pm
 nuke
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Like the idea of the Rawlbolt method but can't seem to find a Rawlbolt with the correct width for an 8mm ID bearing, 12mm seems the smallest size. Anyone know if smaller are available?


 
Posted : 27/01/2012 4:21 pm
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Pierre I emailed the manufacturer (franklin) of mine, as mine came with a bent collet, but unfortunately the answer was not cheap (for me anyways):

Part No. 19762 15-19mm BEARING EXTRACTOR 913D cost price £ 29.75 + vat - carriage paid witin the U.K

EEK! I only paid £50 for the puller...


 
Posted : 27/01/2012 4:31 pm
 nuke
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[i]Yes - usually availbale in much smaller sizes[/i]

Hmmm, I should have looked at not just [url= http://www.rawlplug.co.uk/index.php?option=com_content&task=view&id=20&Itemid=25 ]Rawlbolt - Loose Bolts[/url] as their hole diameters are 12mm min. Still got to be pretty narrow though and the bolt itself will probably have to be M6. Time for a trip to the local DIY store.


 
Posted : 27/01/2012 4:59 pm
 nuke
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Del - Member
rawlbolt or similar.

Excellent tip Del...worked a treat: http://singletrackworld.com/forum/topic/sooooo-hemlock-owners-any-tips-to-shift-these-bearings


 
Posted : 01/02/2012 12:18 pm
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You can also Hydraulic blind bearings out, great for small needle roller bearings like Crankshaft spigot bearings (Where the gearbox input shaft runs on a RWD car gearbox)

Pack the void and the centre bore of the bearing with grease.
use a shaft in the centre of the bearing
Tap shaft through bearing
Shaft acts on grease
Grease being non compressable, forces bearing out from behind ;o)
No risk of damage that way either 😉
HTH
Dom


 
Posted : 01/02/2012 12:27 pm