Mechanical Bear
|
|
*HTF* ALPS “CRAGSTAN” – TIN / MECHANICAL / BATTERY OP. FISHING Polar Bear! $199.99 |
|
|
1950′s T.P.S. Japan MECHANICAL BEAR GOLFER MINT IN ORIG BOX.COMPLETE/Balls No Re $102.50 |
|
|
(MIB) VINTAGE 1950′s “Alps Japan” MECHANICAL THIRSTY BEAR $99.99 |
|
|
Laughing Shaking Mechanical BEE BEAR Plush Toy $95.00 |
|
|
WIND UP, MECHANICAL BEAR, MADE IN Occupied Japan, FUR COVERED, NICE PIECE $90.00 |
|
|
Luv Lov cubs Cute bear hugging toy mechanical talking brown paw Battery Operated $19.50 |
|
|
You Had Me at Chocolate Singing Mechanical Dancing Bear $158.00 |
|
|
Walking Panda Bear & Baby Battery Operated Mechanical Furry Plush Toy Doll 60′s $9.99 |
|
|
WIND UP MECHANICAL OLD LOVELY BROWN COLOUR PLUSH BEAR WORKING x $188.00 |
|
|
Vintage Alps Mechanical Drummer Bear Wind up NIB $85.00 |
3 Reasons For Premature Bearing Failure (And How To Avoid Them)
Every failed bearing tells a story – one that can help identify machinery problems, maintenance issues, bearing selection errors and other important issues. Are you interested?
In the pulp and paper industry, bearings face harsh conditions every day, and this can result in premature bearing failure. When bearings fail, quick replacement to minimize downtime is the first priority. In fact, taking the time to investigate the causes of bearing failure can actually increase uptime and decrease both maintenance time and cost.
Creep
Creep is where slipping occurs at the fitting surfaces and thereby creates a clearance at the fitting surface.
What to Look For: A shiny bearing surface, occasionally with scoring or wear.
Cause:
Insufficient interference or loose fit
Insufficient sleeve tightening
Solution:
Check the interference, and prevent rotation
Correct the sleeve tightening
Study the shaft and housing precision
Preload in the axial direction
Tighten the raceway ring side face
Apply adhesive to the fitting surface
Apply a film of lubricant to the fitting surface
Flaking
Flaking occurs when small pieces of bearing material are split off from the smooth surface of the raceway or rolling elements due to rolling fatigue, thereby creating regions having rough and coarse texture.
What to Look For: Rough, course texture on the bearing surface.
Cause:
Excessive load
Poor mounting (misalignment)
Moment load
Entry of foreign debris, water penetration
Poor lubrication, improper lubricant
Unsuitable bearing clearance
Improper precision for shaft or housing, unevenness in housing rigidity, large shaft bending
Progression from rust, corrosion pits, smearing, dents (brinelling)
Solution:
Reconfirm the bearing application and check the load conditions
Improve the mounting method
Improve the sealing mechanism, prevent rusting during non-running
Use a lubricant with a proper viscosity, improve the lubrication method
Check the precision of shaft and housing
Check the bearing internal clearance
Smearing
Smearing is surface damage that occurs from a collection of small seizures between bearing components caused by oil film rupture and/or sliding.
What to Look For: Surface roughening occurs along with melting.
Cause:
High Speed and light load
Sudden acceleration/deceleration
Improper lubricant
Entry of water
Solution:
Improve the preload
Improve the bearing clearance
Use a lubricant with good oil film formation ability
Improve the lubrication method (download our Lubrication Guide for easy reference)
Improve the sealing mechanism
Bearing failure not only affects specific equipment, it can cause entire facilities to grind to a halt. Don’t address the immediate problem by simply installing a new bearing; investigate the cause of bearing failure. You may be able to prolong bearing life, improve productivity and reduce maintenance costs by identifying and resolving issues around bearing selection, mounting, lubrication and application.
For more information on maximizing bearing life to increase uptime, visit www.thinknskuptime.com and access our online solution guide!
About the Author
NSK Corporation
is a world-class producer of ball and roller bearings. Established in 1916, NSK is one of the leaders in the bearing industry due to our intense commitment to engineering research, dedication to modern manufacturing processes and an obsession with quality.
Who can help with economic metaphors?
metaphors that are individuals. Economics for example, is a living organism (a metaphor key) depressed growth is in need of a shot in the arm of Economics is a mechanical process (key metaphor) Low interest rates boost growth. I have two key metaphors: The economy is a living organism and Economics is a mechanical process, and appreciate any finds! Thanks, Olivia
The long list of economic metaphors may include some or all of the following navigation] [shipwreck, [perfect weather storm] storm, earthquake [tectonic tsunamis, tidal wave (!)], enemy ambush twin towers [Pearl Harbor], addiction habit [,] Facilitator blunder [accident, accident, crash train, rescue,] rescue the Holocaust [religious Armageddon] and the attack of the health [of the heart, cancer], among others.
[mage lang="en|es|en" source="sooper"]Mechanical Bear[/mage
