Bearing
Repair
Bearing
Re-Manufacture and Reclaim
We also offer Component Repair and Gearbox Repair
How
Does the Remanufacture Process Work?
On receipt of
the basket at our repair facility in Pittsburgh, we will clean,
disassemble, inspect and gauge all critical dimensions of the bearings.
This inspection report, along with our recommendations for repair
and salvage rate are forwarded to the customer. The re-manufacture
process will not commence until the customer gives us the approval
to proceed with repairs. Even if the customer decides against the
repair, the inspection process is at no charge.
Once the repair
is approved, the bearing races will be ground to remove blemishes,
surface imperfections, and brinelling. Oversize rolling elements
are manufactured to ensure that the original specified radial clearance
is maintained. The cage pockets might or might not have to be bored
oversize to accomodate slightly larger rollers. The cage is then
sandblasted to remove burnt grease and metal fragments. The bores
and ODs are merely cleared up and are thus not changed dimensionally.
The bearing is then re-assembled and final inspected before it is
marked as a re-manufactured bearing. Then it will be dipped and
wrapped.
How
Does the Reclaim Process Work?
The reclaim
process is very similar to the re-manufacture process, except that
no stock removal from grinding takes place. Instead, the bearing
races are polished to remove minor blemishes, slight surface imperfections,
rust, or burnt grease. The rolling elements are vibratory tumbled
to remove similar imperfections, and the cages are sandblasted to
remove burnt grease or metal fragments. This procedure allows the
bearing to still operate within its original radial clearance parameters.
The bores and ODs are merely cleaned up and are thus not changed
dimensionally.The bearing is then re-assembled and final inspected
before being marked as a reclaim. Then, it is dipped and wrapped.
The bearings are then shipped back to the customer warehouse. The
customer is billed for salvaged bearings only.
Difference
Between Re-Manufacture and Reclaim
Cost
Re-manufactured
bearings: Approximately 40-50% of the cost of a new bearing reclaim
bearings: Approximately 25% of the cost of a new bearing.
Stock
Removal
The
stock removal on remanufactured bearings can be significant due
to the grinding process. The races will therefore be cleaned up
entirely and be free of any blemishes. The stock removal on reclaim
bearings from polishing is minimal and removes only slight imperfections
and blemishes.
Component
Replacement
Re-manufactured
bearings are equipped with new sets of rolling elements. The cage
may or may not be modified to accept larger rolling elements and
in some instances, new cages are manufactured as well. In some cases,
new outer or inner rings are also made, but costs would increase
for that level of repair.
No new parts
are made for reclaimed bearings. All original parts are used.
Application
The re-manufacture
program applies to the following bearings:
- All types
of cylindrical roller bearings and ball bearings
- Sendzimir
bearings (Z-Mill)
- Tapered roller
bearings/Slew bearings
The reclaim
program applies to the following bearings:
- Spherical
roller bearings
- Tapered roller
bearings
- Spherical
plain bearings
- Journal boxes
- Pillow blocks
- Flange units
- Take-up units
- AP units
- Large table
bearings/Slew bearings
Smaller, low
cost, high production type bearings are not normally suitable for
these programs because the cost of the process would not warrant
a feasible return compared to the cost of a replacement bearing.
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