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RE-NEW MACHINE & MAINTENANCE, A Division of Repair Parts, Inc.
2415 Kishwaukee Street, Rockford, Illinois 61104
Phone: (815) 968-4499 Fax: (815) 968-4694
The One-Stop Shop for
Barber-Colman Machine Tools
- Machine tool reconditioning
- Repair and replacement parts
- Factory trained service
- Training -- operator, set up, or maintenance -- in your facility or ours
- Gear Machine Sales -- We have reconditioned hobbers & sharpeners in stock -- can be seen under power
- Hob sharpening
- Consulting and appraisals
This month we will discuss
"Suggested Machine Load Limits". The Load Limits suggested by Barber-Colman are as
follows:
| 6-10, 6-16, + 6-20 machines |
0.15 - 0.25 |
| 16-16, 16-36, + 16-56 machines |
0.75 - 1.50 |
| 14-15, 22-15, + 14-30 machines |
1.50 - 2.50 |
| 10-10 + 10-20 machines |
2.50 - 3.50 |
| 12-10, 12-15, + 16-15 machines |
3.50 - 4.50 |
| 25-15, 25-30, + 40-15 machines |
3.50 - 4.50 |
The formula for Approximate Load is:
The formula for Cubic Inches per Minute
is as follows:
Cubic Inches per Minute = Hob RPM X Feed per Work Rev X Area X Hob Threads
The formulas for Area are:
These formulas will tell you if the
feeds and speeds you are running are within the limits of the machine. Running the machines within
the suggested limits will greatly increase the life of the machine and will even improve the life
of your cutting tools.
We hope this information is of use.
If you have any questions or have a particular topic you would like to see discussed here, please
contact us.
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