SHELF LIFE AND STORAGE OF GREASE LUBRICATED BEARINGS AND COMPONENTS
SHELF LIFE POLICY: The Torrington Policy for the Shelf Life of Grease Lubri- cated Rolling Element Bearings, Components and assem- blies is set forth below. The Shelf Life values are based on test data and experience.
Shelf Life should be distinguished from lubricated bearing/component Service Life as follows:
Shelf Life The Shelf Life of the grease lubricated bearing/compo- nent is the maximum allowable time interval from date of original manufacture/packaging to the removal from the original packaging (hereinafter referred to as “Shelf Life”).
Service Life The Service Life of the grease lubricated bearing/compo- nent is a measure of the anticipated aggregate usage (hereinafter referred as “Service Life”). Variations in lubri- cant bleed rates, oil migration, operating conditions, installa- tion conditions, temperature, humidity and extended storage make it impossible to accurately predict Service Life.
The Bearing Shelf Life is related primarily to the lubricant’s ability to maintain the bearing’s original manu- factured radial internal clearance and freedom to rotate.
The Component Shelf Life is related to the ability of the component to function as originally intended.
The Shelf Life values, available from the Torrington District Sales Office, represent the period of time prior to use or installation. Due to the broad range of applications, Torrington cannot anticipate the performance of the grease lubricant after the bearing or component is installed or placed in service.
These Shelf Life values are to be used as a maximum limit – assuming adherence to the Torrington recom- mended storage and handling policy. Deviations from Torrington’s Storage and Handling Policy may reduce Shelf Life. Any specification or operating practice that defines a shorter Shelf Life should be used.
THE BEARING/COMPONENT SHOULD NOT BE PUT INTO SERVICE IF THIS SHELF LIFE IS EXCEEDED.
TORRINGTON DISCLAIMS RESPONSIBILITY FOR THE SHELF LIFE OF ANY BEARING/COMPONENT LUBRI- CATED BY ANOTHER PARTY.
STORAGE POLICY: The Torrington policy recommends the following storage guidelines for its finished products (bearings, components, and assemblies, hereinafter the “Products”):
Unless directed otherwise by The Torrington Company, Products should be kept in their original packaging until they are ready to be placed into service.
Do not remove or alter any labels or stencil markings on the packaging.
Products should be stored in such a way that the packaging is not pierced, crushed or otherwise damaged.
After a Product is removed from its packaging, it should be placed into service as soon as possible.
When removing a Product that is not individually pack- aged from a bulk pack container, the container should be resealed immediately after the Product is removed.
Do not use Product that has exceeded its Shelf Life as defined in Torrington’s Shelf Life Policy Statement.
The storage area temperature should be maintained between 0 C (32 F) and 40 C (104 F); temperature fluctuations should be minimized.
The relative humidity should be maintained below 60%.
The storage area should be kept free from airborne contaminants such as, but not limited to: dust, dirt, harmful vapors, etc.
The storage area should be isolated from undue vibration. Extreme conditions of any kind should be avoided.
In as much as The Torrington Company is not familiar with a customer’s particular storage conditions, these guidelines are strongly recommended. However, the customer may very well be required by circumstance, applicable government requirements, and the like to adhere to stricter storage requirements.
FAILURE TO FOLLOW THESE GUIDELINES MAY RESULT IN REDUCED PRODUCT SHELF LIFE AND/OR ADVERSELY AFFECT PRODUCT PERFORMANCE.
Any questions concerning the Shelf Life or Storage Policy should be directed to the local District Sales Office.