Posts Tagged ‘introduction’

Koyo – Bearing Mounting Tool Kits

Tuesday, May 10th, 2011

Koyo BMT 39 - Bearing Mounting Tools

 

Practical Mechanical mounting set for safe, precise and quick mounting of bearings, bushings, sealing rings, cam wheels and pulleys.  The set consists of a dead-blow hammer, 3 aluminum sleeves and a set of 39 plastic collets (rings).

The impact resistant plastic collets support the inner and outer rings when mounting, preventing metal to metal contact and possible damage to the bearing rings and shaft.

Mitsuboshi – Mega Torque G

Thursday, February 24th, 2011

Supporting the World’s Leading Injection Molding Technologies

Injection molding machines are used to manufacture structural foam products from precision to large parts.  Japanese injection molding machines enjoy a worldwide reputation for their precision and have gained a 40% market share of the international market.  Traditionally, injection molding machines were mainly of the hydraulic type but in light of recent concerns for the environment the motorized type is increasingly popular as they are cleaner and quieter.  Belts are used in the motorized type for injecting and clamping parts.  For these applications Mitsuboshi Belting has chosen to use a special hard rubber that has high strength and durability and generates a transmission volume that is twice as large as the conventional S8M and S14M.  Mitsuboshi Belting also achieved higher transmission efficiency and lower noise with its products, receiving high acclaim from many of the injection molding machine manufacturers.

Baldor – Maska –Elastomeric Couplings; Selection and Maintenance Tips

Thursday, February 10th, 2011

Advances in technology and design innovation have resulted in numerous benefit of Elastomeric Couplings in a vast array of applications.

Elastomeric Couplings

Selection and Maintenance Tips

Flexible Coupling:  A mechanical fastening devise used to connect two rotating shafts for power transmission that accommodates equipment misalignment.

Elastomer:  Resilient material having elastic properties.  (rubber, synthetic rubber or plastics)

Elastomer Element:  An assembly of components designed to connect axially oriented shafts in order to provide power transmission and accommodate shaft misalignment through elastomeric materials.

Why Elastomeric Element Couplings (versus Gear-type)?

ENVIRONMENTAL IMPACT – No lubrication required.  For every dollar spent on grease, 5 times more is spent on environmental cleanup.

PERFORMANCE – Elastomer elements are resilient and reduce the amount of vibration and shock being transmitted.  In rare events when the element does fail (extreme torque or excessive misalignment), a new insert is installed in minutes.

OUTPUT – Handle equal or higher torque requirements compared to gear couplings without increasing the size of the part.

COST SAVINGS – There is no metal-to-metal contact as power is transmitted through non-metallic elements; this reduces the replacement component to just the element.

OPERATIONS – Coupling advantages result in reliable, clean operations and improved preventive maintenance which contribute to reduced failures and equipment downtime.

MAINTENANCE – Multiple cover options allow for easy inspection and as it is not necessary to move the parts, change-out takes only minutes.

Importance of Proper Selection

Coupling two shafts together can require detailed calculation.  The best suited coupling type will depend on the application, drive and driven equipment, shaft diameter, space available, power, torque and speed to be transmitted, life expectancy required, electrical insulation, operating temperature range and the nature of the misalignment — which  could be angular, parallel or a combination.  Different coupling types are also differentiated by torsional, angular, radial and axial stiffness.

What you should know about coupling selection, and why!

  1. Horsepower — almost all couplings are sized based on the horsepower to be transmitted.
  2. Type of Drive — if the power source is a reciprocating engine, there will usually be a “Driver Service Factor Adder”.  Torsional vibration is produced in a continuous steady form that can be transmitted directly  into the driven machine; an elastomeric coupling is designed to help dampen this vibration.
  3. Type of Driven Equipment — driven machines are classified based on their load characteristics and a service factor is assigned accordingly.  Multiplication of the service factor by the input horsepower gives the design horsepower upon which most couplings are sized.
  4. Speed at which Couplings Operate — Most selections are based on the HP at a certain RPM.  As the speed is reduced, the torque increases.  Verify that you don’t exceed the maximum speed of the coupling.
  5. Shaft Sizes — Make sure the selected coupling fits with the required bore.  You may have to choose a larger coupling than your design calls for in order to obtain the correct bore size.
  6. Space Limitations — Will the couplings length and diameter fit within the allotted space?
  7. Environment — Several factors that occur in the surroundings can affect the service life of a coupling.  For example, the operating characteristics of an elastomeric coupling can change if the temperature exceeds 170 degrees F (77 degrees C) or is -30 degrees F (-34 degrees C); and if the environment is wet or oily, some types of couplings are inappropriate.

Data required …

  • Power in HP, CV or KW
  • RPM
  • Shaft Diameters (driven and drive shafts)
  • Service Factor

Pro Active Maintenance

Keeping machinery operating successfully requires careful design selection, proper installation, periodical inspection, observing changes n performance and investigating thoroughly the cause of a failure.

Tips:

  • Does the coupling show signs of distress.  Such as running hot, loose bolts, cracked rubber or power on the baseplate?
  • Is there excessive backlash across the part?
  • Does the shaft rotate easily and consistently through a 360 degree rotation? Or, does it bind at some point?
  • As you disassemble, are any parts missing?  Is there excessive wear?  Compare the appearance with a new coupling.
  • Is the element worn or cracked?  Are the set screws still in place or were they loose?  If the element is excessively worn, was the total time it was in operations compatible with its service life?
  • When replacing an element, use an appropriate puller to remove the flanges.  Do not force then off with a hammer.

General Advantages of Ball Bearings

Tuesday, December 14th, 2010

In addition to reducing friction (and consequently wear) to almost the absolute minimum, the ball bearing has certain general advantages.  These are: —

  • POWER SAVING – With the truest rolling motion of any type of bearing, ball bearings reduce friction appreciably over roller bearings, and even more over plain bearing, under ideal or laboratory conditions.  Actually, the saving in power consumption, depends upon a number of factors in the installation, but, other things being equal, will be greater with ball bearings.
  • LUBRICATION AND LABOR SAVING – Constant oiling of plain bearings is expensive and troublesome.  Both in the cost of lubricant and in maintenance labor (due to less frequent replenishment), ball bearings can effect great economy.
  • RELIABILITY – By virtue of their practically frictionless non wearing operation, ball bearings eliminate the expensive and time-consuming rebabbitting and replacing of plain bearings.  No adjustment, repair or attention is necessary other than periodical lubrication.
  • CLEANLINESS –  Particularly with ball bearing power transmission units,where grease is used as the lubricant rather than oil, is leakage eliminated.
  • REDUCED FIRE HAZARDS – Running cool and clean, ball bearings can eliminate the fire hazard from the conditions presented by overheated and oily plain bearings.
  • INCREASED PRODUCTION – The savings in power resulting from the use of ball bearings have often permitted the use of higher speeds, smaller motors or additional equipment, without other changes being necessary.
  • INCREASED LIFE OF ASSICIATED EQUIPMENT – By eliminating the initial starting strain which is present in plain bearings after idleness, such equipment as motors and belts is relieved of the starting torques which materially shorten life.  Shaft life is likewise indefinitely prolonged, as the constant rubbing friction is eliminated.  In fact, nearly all the parts directly associated with ball bearing installations benefit from their use.

Now that you’ve met all of us …

Tuesday, November 16th, 2010
 

Website Launch Date !!!!!! December 17th (barring any unforeseen circumstances!!!!) Celebrate with us !!!!!

 

Now that you’ve met us, stop by often so we can show your our expertise !!!!!

And last but not least ….. let me introduce you to …

Tuesday, November 9th, 2010

——ME——

Sally — I’ve been with Bearings Incorporated since 1976 beginning in general office and working through shipping and recieving.
After leaving and pursuing other interests, found myself returned in 1982; being hired again for general office tasks and delivery at our office in Menomonee Falls, Wisconsin.  Throughout the years; I’ve worked my way up to controller / systems administrator.  Now have taken on “Blog Queen” and when the website of Bearings Incorporated becomes live, will add Webmaster to my list as well.  I’m excited about the new website, and the new ideas that it will encourage; and can not wait for the launch!  I enjoy working at Bearings Incorporated for many reasons … one of which is the opportunity to spread my wings and never come to work without the idea that I will not learn something new today.In my personal time I enjoy crafting, dog training,  sitting and getting lost in the concertina, or the organ/keyboards where I can get lost for a good chunk of time; and volunteering. I basically leave the “technical enjoyments” for the office.

Let me introduce you to ………

Tuesday, November 2nd, 2010

—–Kathy—–

Kathy has been part of the Bearings Incorporated family since the 1980’s, beginning in the bookkeeping department. After leaving for a bit to pursue other interests; came back to home base in 2006 where she currently works in inside sales. Her best interest is with our customers.During her personal time, she enjoys gardening and “growing things” .