Accessory Blind Hole Bearing Replacement & Tools Required

[Grumpy]

my brother in law wanted to replace the bearings in an electric motor that was no longer made or for sale, hes looked for a few months now.
the bearings are seated in a blind hole and he had no way to remove them easily from a recess in the housing,
that motor housing is likely to be damaged if subjected to much abuse,
parts like alternators, starters, power steering pumps, and super chargers have these bearings
I suggested he purchase a small recessed bearing puller tool, as that's the ideal tool.
as the cost of the tool and bearing would be far lower than the motor replacement ..if he could even find one.
I offered to pay 1/2 the cost of that 689/2b tool set,
or some similar quality tool set,
https://uniorusa.com/collections/bearing-tools/products/bearing-puller

if I keep the tool after he used it...as he's very unlikely to ever need it again anyway
and yes it way overpriced and less expensive tools are available

READ THIS THREAD ALSO
http://garage.grumpysperformance.com/index.php?threads/pilot-bushing-installation.2596/#post-95633
and yeah a bolt wrapped with tape and grease can be used,
in some applications like crank pilot bearing removal

yes there are other options
I've seen guys simply TIG weld a 10" long bolt,
inside the worn recessed bearing,
and use it as a handle to pull the defective bearing out,
but that's not always an option due to heat or bearing access issues

https://orionmotortech.com/products..._content=sag_organic&utm_campaign=sag_organic

https://www.amazon.com/DASBET-Beari...coding=UTF8&psc=1&refRID=9NM69BV8CHKJ6JSP2XZ9

 

[Grumpy]

just an update.
on that bearing removal,
my brother-in-law chose not to buy a tool to remove the bearing,
So I first sprayed it with liquid wrench and a bit of MMO

to hopefully loosen the bind on the bearing to housing grip,
I stuffed the bearing with moly grease and used a wooden dowel ,
to act as a hydraulic piston, the dowel was a bit loose in the bearing center hole but maybe only a few thousands.
the bearing would not come loose with the first few hammer blows,
mostly because the grease leaked past the dowel to some extent,
so I caked/ smeared a bit of grease liberally smeared grease on toilet paper, so the fibers would act as a seal over the grease,

that change , instantly improved results and the bearing popped loose on the next hammer blow