Check Your Shaft and Housing Design Specs
Our tolerance calculator was created to help engineers make sure their shaft and housing is machined within the right tolerances.
Why is this important?
The tolerance guidelines are in place to make sure maximum bearing life is achieved and no additional forces are placed upon the bearing when in use.
For example, when a high speed application is in operation, it’s critical that the inner ring of the bearing stays pressed into the shaft. But high centrifugal force (from rotation) will make the inner ring want to expand and thereby slip on the shaft which could cause drastic machine malfunctions and decrease the life of the high precision angular contact bearing.
By using this calculator you can machine your shaft and housing at the tolerance recommendations that will create maximum bearing life.
The RPM adjustment factor is calculated per GMNs standards and experience from many years in the bearing industry. It’s an important calculation to make sure the inner races of the bearing are press fit into the shaft at all times.
Note: There is also a Precision Bearing System Tolerance Calculator – Thermal Effects to support engineers in applications with higher (or lower) temperatures.
Please note: There are many factors that go into proper tolerancing:
- Bearing size
- Duty cycle
- And much more
This calculator is designed to be a guide for general applications. GMN Bearing USA and its partners make no representations or warranties of any kind regarding the tool and information contained on this page. Any use or reliance upon this tool and information shall be at the sole risk of the user. GMN Bearing USA shall have no liability whatsoever with respect to any decisions or actions made by the user based on results obtained from this tool and information.
DISCLAIMER: The data provided on this page is for general information purposes only. While the intention is to provide accurate information, the calculations performed by these tools/calculators are mathematical estimates only and errors may exist in the supplied information. There is no warranty or guarantee, expressed or implied, regarding the accuracy of this information or its applicability to your engineering situation. Please consult engineering consultants or our onsite engineers before making any technical decisions.