Maintenance Technology July 2017 - 32

PROCESS EQUIPMENT

Poor storage practices harm bearings and, in turn,
equipment reliability.

Bearing storage must-dos
■ Do store bearings in a clean, dry, low-humidity environment.
Moisture from the environment, work gloves, and other
sources can result in corrosion and/or etched sections that
create fatigue on a bearing. Avoid storage near direct sunlight,
air conditioners, or vents.
■ Do eliminate the possibility of shock/vibration during
handling and storage.
■ Do store bearings on pallets or shelves in areas that aren't
subjected to high humidity or sudden or severe environmental changes.
■ Do store bearings flat and never stack them. Lubrication and
anti-corrosion material could squeeze out of stacked bearings.
■ Do (always) lay bearings on clean, dry paper when handling.
■ Do keep bearings away from sources of magnetism.

Store Your
Bearings
Properly
BEARINGS ARE A CRITICAL part of the design and
function of most mechanical equipment. Sadly, due to
improper selection, storage, and installation, the majority
of these components never reach their intended design life.
Consequences for a plant from these situations can include
compromised equipment operation, lost capacity, and
increased costs.
A recent post on the Ludeca (ludeca.com, Doral, FL) blog
urged readers not to condemn their equipment to death
through improper bearing storage. The author, Trent Phillips,
CRL, CMRP, offered a number of best-practice must-dos and
don'ts to help facilities ensure bearing reliability.
- Jane Alexander, Managing Editor

Trent Phillips, CRL, CMRP, is global reliability leader with
Atlanta-based Novelis (novelis.com). To read more of
his insight on Ludeca's website (ludeca.com), including
Part 1 of the two-part post "Has Your Equipment Been
Condemned to Death?" on which this Reliability +
Maintenance Center page is based, go to ludeca.com/blog.

32 |

MAINTENANCE TECHNOLOGY

Bearing storage don'ts
■ Don't store bearings on the floor. Doing so will introduce
contamination, moisture, and vibration/shock.
■ Don't remove bearings from cartons/crates or protective
wrappings until just prior to installation in a machine. The
exception may be bearings in wooden crates, as they could
attract moisture.
■ Don't clean bearings with cotton or similar materials that
can leave dust and/or contamination behind. Use lint-free
materials.
■ Don't handle bearings with dirty, oily, or moist hands.
■ Don't nick or scratch bearing surfaces.
■ Don't remove any lubrication from a new bearing. Lubricants
in stored bearings will deteriorate over time. The bearing
manufacturer should specify shelf-life limits. These dates
should be noted on the packaging and monitored to help
ensure bearings are fit for use when needed. MT

Visual Inspections
Proper storage techniques are just part of the reliability
picture when it comes to bearings. According to Trent
Phillips, the following visual inspections of bearing integrity should be completed periodically on stored bearings,
and just prior to putting them into service:
■ Examine packaging for indications that the bearing
could have been damaged during shipment or
storage. The item should be discarded or returned
to the supplier if signs of damage are found.
■ Examine the grease or oil for evidence of hardening, caking, discoloration, separation, and other
problems. Re-lubrication for continued storage or
replacement maybe required.

JULY 2017


http://www.ludeca.com http://www.novelis.com http://www.ludeca.com http://www.ludeca.com/blog

Table of Contents for the Digital Edition of Maintenance Technology July 2017

Editorial
Uptime
On The Floor
Powering Auto Production
Following The North Star
Flying Inspections
Untangle Compressed Air Misconceptions
Change Your Lubrication Mindset
HMI-Design Essentials For Today's SCADA Systems
SAP: Tips and Tricks
Cybersecurity Best Practices
Bearing Storage
Interpreting IP Code
Noisy Pumps
Move From Time- to Condition-Based Lubrication
CMMS Energizes Maintenance Efforts
Products
Ad Index
Showcase
Final Thought
Maintenance Technology July 2017 - 1
Maintenance Technology July 2017 - Cover1
Maintenance Technology July 2017 - Cover2
Maintenance Technology July 2017 - 1
Maintenance Technology July 2017 - 2
Maintenance Technology July 2017 - 3
Maintenance Technology July 2017 - Editorial
Maintenance Technology July 2017 - 5
Maintenance Technology July 2017 - Uptime
Maintenance Technology July 2017 - 7
Maintenance Technology July 2017 - On The Floor
Maintenance Technology July 2017 - 9
Maintenance Technology July 2017 - Powering Auto Production
Maintenance Technology July 2017 - 11
Maintenance Technology July 2017 - 12
Maintenance Technology July 2017 - 13
Maintenance Technology July 2017 - 14
Maintenance Technology July 2017 - Following The North Star
Maintenance Technology July 2017 - 16
Maintenance Technology July 2017 - 17
Maintenance Technology July 2017 - Flying Inspections
Maintenance Technology July 2017 - 19
Maintenance Technology July 2017 - 20
Maintenance Technology July 2017 - 21
Maintenance Technology July 2017 - Untangle Compressed Air Misconceptions
Maintenance Technology July 2017 - 23
Maintenance Technology July 2017 - 24
Maintenance Technology July 2017 - Change Your Lubrication Mindset
Maintenance Technology July 2017 - 26
Maintenance Technology July 2017 - HMI-Design Essentials For Today's SCADA Systems
Maintenance Technology July 2017 - 28
Maintenance Technology July 2017 - 29
Maintenance Technology July 2017 - SAP: Tips and Tricks
Maintenance Technology July 2017 - Cybersecurity Best Practices
Maintenance Technology July 2017 - Bearing Storage
Maintenance Technology July 2017 - Interpreting IP Code
Maintenance Technology July 2017 - Noisy Pumps
Maintenance Technology July 2017 - Move From Time- to Condition-Based Lubrication
Maintenance Technology July 2017 - 36
Maintenance Technology July 2017 - 37
Maintenance Technology July 2017 - 38
Maintenance Technology July 2017 - CMMS Energizes Maintenance Efforts
Maintenance Technology July 2017 - 40
Maintenance Technology July 2017 - 41
Maintenance Technology July 2017 - Products
Maintenance Technology July 2017 - 43
Maintenance Technology July 2017 - 44
Maintenance Technology July 2017 - 45
Maintenance Technology July 2017 - Ad Index
Maintenance Technology July 2017 - Showcase
Maintenance Technology July 2017 - Final Thought
Maintenance Technology July 2017 - Cover3
Maintenance Technology July 2017 - Cover4
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