- Joined
- Feb 2, 2013
- Messages
- 3,903
i had a shop job recently that required changing of a shaft and a set of timken tapered roller bearings on an industrial meat saw. the job itself is not exceedingly difficult, but reassembly can be challenging in the field. luckily i was in the shop because the saw i'm working on is a basket case that other less than qualified personnel have attempted service and frankly failed miserably.
i was handed the torch to bring the basket case back to life, just like countless times before.:banghead:
upon installation of the lower shaft it dawned on me that i had done this job so many times and never made a proper bearing race driver for this timken bearing.
i have 2 sets of commercially made bearing race drivers, but neither set had the odd ball size i needed.
i always made due with brass drifts and a bunch of tapping to set the race.
i made the decision to take an hour and make my own custom race driver that will speed up futures jobs.
time is money, so i took the hit and i'm not going to look back!
pictures for the interested
the slug above is 6061 aluminum .500" thick, saw cut 3.00" diameter.
i center drilled the disc in the drill press and reamed the center to .500".
i pushed a 1/2" lathe mandrel in the bore and set it between centers in my Hercus 9" lathe.
there were interrupted cuts at first because i didn't have the slug centerdrilled correctly.
it cleaned up concentrically in a couple of passes with a handground HSS bit.
i worked the OD down to it's final dimension of 2.370".
I had a spare chunk of 316 rod 20mm diameter by 18" long,
i cut and knurled the handle and made a .490" diameter X .625" long, step on the other end.
and baddabing,
1 shop made Bearing Race Driver
the finished creation below
as always thank you for reading and participating!
mike
)
i was handed the torch to bring the basket case back to life, just like countless times before.:banghead:
upon installation of the lower shaft it dawned on me that i had done this job so many times and never made a proper bearing race driver for this timken bearing.
i have 2 sets of commercially made bearing race drivers, but neither set had the odd ball size i needed.
i always made due with brass drifts and a bunch of tapping to set the race.
i made the decision to take an hour and make my own custom race driver that will speed up futures jobs.
time is money, so i took the hit and i'm not going to look back!
pictures for the interested
the slug above is 6061 aluminum .500" thick, saw cut 3.00" diameter.
i center drilled the disc in the drill press and reamed the center to .500".
i pushed a 1/2" lathe mandrel in the bore and set it between centers in my Hercus 9" lathe.
there were interrupted cuts at first because i didn't have the slug centerdrilled correctly.
it cleaned up concentrically in a couple of passes with a handground HSS bit.
i worked the OD down to it's final dimension of 2.370".
I had a spare chunk of 316 rod 20mm diameter by 18" long,
i cut and knurled the handle and made a .490" diameter X .625" long, step on the other end.
and baddabing,
1 shop made Bearing Race Driver
the finished creation below
as always thank you for reading and participating!
mike
)
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