Blog
On this page (12)
- Part 5: About Capture, Specialty Bearings and Hydraulic Nuts
- Part 4: About Cylindrical Roller Bearings Installation and Preload
- How Long Will a Roller Bearing Last in the Absence of Lubrication?
- What is Preload?
- What is ABEC 7?
- What is ISO 1940/1 G0.4.?
- What is Trim Balance?
- What is Imbalance and How is it Corrected?
- What Lubrication Should I Use?
- Why Did My Spindle Fail?
- What is a “Kiss Grind”?
- What is GPG and Why is it Important?
Part 5: About Capture, Specialty Bearings and Hydraulic Nuts
May 18, 2016
Part 5 of How to replace damaged bearings on a precision CNC spindleThere are a lot of questions about replacing bearings on CNC spindles. As a result, we've decided to…
Part 4: About Cylindrical Roller Bearings Installation and Preload
May 18, 2016
Part 4 of How to replace damaged bearings on a precision CNC spindleThere are a lot of questions about replacing bearings on CNC spindles. As a result, we've decided to…
How Long Will a Roller Bearing Last in the Absence of Lubrication?
April 7, 2016
Tom M. a maintenance supervisor at GSO &M sent us the above question.Some of our original response to the question above was incorrect. We recently received an email from a…
What is Preload?
April 7, 2016
Axial Preload for Angular Contact Bearings Preload is the load generated from the axial or radial interference within a bearing resulting in elastic deformation between rolling elements and the raceway.…
What is ABEC 7?
April 6, 2016
HST only uses top name brand ABEC 7 bearings ABEC ratings have to do with the quality and precision of the bearing. It is an industry accepted standard developed by…
What is ISO 1940/1 G0.4.?
April 6, 2016
ISO 1940/1 is an international standard used for qualifying the balance of rotating rigid bodies. The standard also specifies the method for verifying residual imbalance. G0.4 is a particular balance…
What is Trim Balance?
April 6, 2016
Trim balance is the final balance procedure done to a spindle after assembly and during full speed testing. This is procedure is necessary for two reasons. One, often additional components…
What is Imbalance and How is it Corrected?
April 6, 2016
Imbalance is caused by the displacement of the center of mass from the rotational axis which is a function of eccentricity in the distribution of the rotating mass. It is…
What Lubrication Should I Use?
April 5, 2016
Today there are many excellent lubricants for the full spectrum of spindle applications. The OEM should always be the first source for lubrication requirements. However, if that information is not…
Why Did My Spindle Fail?
April 5, 2016
In our data base of over 100,000 repairs we have seen a broad spectrum of failures. Some common failure causes include: Contamination Mishandling Incorrect Preload Overloaded Lubrication Imbalance Drawbar Mechanism…
What is a “Kiss Grind”?
April 5, 2016
A kiss grind, also sometimes referred to as a “breeze grind” is a light surface grind that will remove minor surface damage. It is typically used on tool interface surfaces…
What is GPG and Why is it Important?
April 5, 2016
GPG is the abbreviation for Grind – Plate – Grind. This is our process for surface restoration, and it is used to restore out-of-tolerance critical surfaces like bearing journals to…
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