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H - SG NSK Handling & StorageHO 6

The document discusses factors that affect bearing shelf life such as storage conditions, type of preservative, and lubricant. It notes that correct stacking and a first-in, first-out approach maximize shelf life. Poor storage conditions can lead to corrosion. NSK's global packaging protects bearings from corrosion using preservative oil, vapor phase inhibitors, vacuum packing, and heat sealing. Handling precautions include storing in a clean, dry area with minimal vibration and keeping bearings sealed until use.

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mohamed bakry
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70 views3 pages

H - SG NSK Handling & StorageHO 6

The document discusses factors that affect bearing shelf life such as storage conditions, type of preservative, and lubricant. It notes that correct stacking and a first-in, first-out approach maximize shelf life. Poor storage conditions can lead to corrosion. NSK's global packaging protects bearings from corrosion using preservative oil, vapor phase inhibitors, vacuum packing, and heat sealing. Handling precautions include storing in a clean, dry area with minimal vibration and keeping bearings sealed until use.

Uploaded by

mohamed bakry
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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30.05.

2019

Bearing Shelf Life

NSK Handling & Storage

Factors affecting bearing shelf life include:

 Storage Conditions
 Type of Preservative
 Type of Lubricant

Confidential

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Incorrect Stacking Correct Method of Storing

First In – First Out

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Cleanliness Corrosion – Adverse Storage Conditions

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30.05.2019

Storage Corrosion – Ball Bearing Storage Corrosion – Roller Bearing

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NSK Global Packaging Packaging Features

 Low viscosity preservative oil – chemically compatible with most


common industrial greases
 VPI (Vapour Phase Inhibitor) impregnated into the nylon
polyethylene laminated bag – providing additional corrosion
protection
 Bearing vacuum packed and heat sealed for added protection from
the outside environment
The same packaging method is used for factory-greased bearings and
all sealed bearings. There is no need to pre-clean the bearings prior to
mounting.

Confidential Confidential

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Handling Precautions Handling Precautions

 Store in clean, dry area with minimal vibration A) OPEN BEARINGS (not-pregreased)
 Keep bearing sealed in original packaging until needed RELATIVE
RELATIVE AVERAGE NUMBERS OF
HUMIDITY
HUMIDITY TEMPERATURE YEARS
 Hands should be clean and dry (use gloves if necessary)
 Keep surrounding area clean when mounting 50 20 °C to 25 °C 15
 Do not wash new bearings 60 20 °C to 25 °C 10
Keep bearings covered when not in use 75 20 °C to 25 °C 5
75 35 °C to 40 °C 3

B) CAPPED BEARINGS (shielded or sealed)


Handling & storage of bearings in the correct manner allows
the maximum level of performance and life to be achieved. 3 YEARS (ageing of the grease)

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30.05.2019

NSK Mounting & Dismounting

Thank You for your attention

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