Archive for November, 2010

Mitsuboshi Belting — 8 new Primestar products

Tuesday, November 30th, 2010

1) Mega Torque GII Timing Belt

Mega Torque G, the timing belt for heavy load equipment, is highly praised in the market.  Mitsuboshi refined it to Mega Torque GII, which makes it possible for the huge machines like injection molding machines or pressing machines to become more compact and to make less noise.  Mega Torque GII has gained 50% larger capacity, reduced noise by 18%and increased the durability by 100%, compared with Mega Torque G, their normal product.

2) Mega Torque EX Timing Belt

Mitsuboshi has developed “Mega Torque EX” for semi conductor producing equipments and machine tools, which require high accuracy  of positioning and advanced following capability.  Mega Torque EX is a highly appreciated timing belt, which it’s high capability is 2 times better than the original Mega Torque G limited torque for teeth jumping.  Mega Torque EX has cut down the oscillatory convergence time by approximately 10% and has improved repetitive positioning accuracy up by about 17%.

Stop by December 2, for the continuation …..

Happy Thanksgiving !!!!!!

Thursday, November 25th, 2010

Happy Thanksgiving to all that visit. Wishing you the best for the holiday weekend!!! Wishing you a safe and happy Thanksgiving!!!

The Modern Development of AntiFriction Bearings (part 2 of 2)

Tuesday, November 23rd, 2010

From the Standpoint of …

Precision

Since the assembly of ball and roller bearings involves very careful processing of the finest material, and delivery to the user in a finely adjusted condition , ball and roller bearings are used where precision of rotating elements must be of the highest order.  The external dimensions of bearings are standardized as to nominal diameters and working tolerances, and in ball bearing and roller bearing plants of the present day the finest equipment is used, not only for processing but for the inspection of component parts, in order to insure the precision demanded by the principle of the bearing and the service into which it is to be placed. 

Accurate and true-running bearings are for the first time possible with the ball and roller types, vibration, chatter,m and other undesirable conditions which may arise in plain bearings being largely eliminated by the proper selection and applications of anti-friction bearings to many types of machinery.  Gears can be kept in exact alignment and adjustment.  Grinding wheels can best supported as to produce the finest work, woodworking tools can be made to produce a more accurate finish, and at higher rates of speeds than would be possible with plain bearings.  Parts which must be maintained with small but definite clearances are most successfully carried on ball bearings, and these qualities are only available during the initial period of operation but extend through their long and useful life. 

Elsewhere are described the various degrees of precision  which are available to the user of ball bearings.  The so-called S.A.E. tolerances themselves are precision tolerances, but for even finer requirements still further degrees of accuracy are obtainable.

Lubrication

The load-carrying element in the plain or journal bearing is a film of lubricant forced between the rotating and stationary surfaces by the action of the journal itself, and by the tendency of the lubricant to adhere to the stationary surface on the other side.  This action drives a wedge of lubricant between the surfaces and separates them from actual metal – to – metal contact.  The plain bearing is forced to rely upon this action for its effectiveness , while in the ball and roller bearing this condition does not apply, as rolling elements are interposed between the raceways.  Lubricant, therefore, takes what may be termed a secondary (although important) place in the functioning of an anti-friction bearing.  It lubricate the retainers, where they are in slight sliding contact with the balls, as well as the twilight zone where rolling friction verges on sliding friction, and it serves as a protector for the finely finished surfaces of the balls and raceways.

These considerations are responsible for the starting friction of ball and roller bearings being very low, and of plain bearings high.  They press lubricating problems on teh designer and user of the plain journal to a far greater extent than with anti-friction bearings, where the rolling elements are kept in their proper relation with respect to the races by the retainer or separator, and maintain their location during service — in operation and out.

The design of housing for lubrication and the selection procedure in applying lubricant to the various ball bearing designs are treated separately in this catalog.  In summing up, it is well to remember that anti-friction bearings will require comparatively little lubricant and offer a fairly wide choice of grease or oils.  Maintenance is low and periods between lubrication can be unusually long.

The Modern Development of AntiFriction Bearings (part 1 of 2)

Thursday, November 18th, 2010

From the Standpoint of

Friction….

The frictionless characteristics of ball and roller bearings are well known.  While of little practical use in the actual bearing design, perhaps, it is interesting to compare the abilities of various types of bearings as measured by the coefficient of friction.

One of the outstanding differences between antifriction bearings and plain bearings, for example, is that the antifriction type will maintain an almost uniformly low coefficient of friction during wide variations in loading, whereas the plain bearing will under the same conditions exhibit a coefficient which varies greatly.

Another fact it is well to  remember is that during non-operation of plain bearings the load or weight of parts generally forces out the oil, destroying the film on which its operating effectiveness rests, and since there is no rotation to  build it up again, this leads to metal-to –metal contact and high starting friction in plain bearing machinery.  Further, this momentary sliding contact between the metals in the plain bearing produces probably the greater portion of the total wear in a plain journal, as observed after a period of operation.

The friction characteristics of plain bearings are largely influenced by variation in the lubricating medium, and while anti-friction bearings do require a careful selection of lubricant, they are not nearly so sensitive to changes in type of characteristics.

As contrasted with the plain journal in which the oil is expelled during periods of inoperation, the anti-friction bearing presents rolling elements (either balls or rollers) between the load-carrying surfaces at all time, and therefore does not suffer from a similar action.  The absence of this sliding friction at the start of operation has the effect of reducing the power required to start machines, and where a number of motors is involved this may be an item of considerable interest to the user.

Reliability

 

Anti-friction bearings could not have gained the widespread acceptance they have in the past few years without embodying the utmost reliability.  Airplanes, railway cars of conventional and high-speed design, steel mill equipment, pulp and paper machinery, a great variety of machine tools, an almost unbelievable amount of textile machinery, mining equipment, delicate apparatus such as gyroscopes, signal relays, train control equipment – indeed an almost endless list of successful applications can be credited to anti-friction bearings.  Coupled with this, the nationwide facilities of a great number of bearing companies make ball bearings readily available items.  Replacement or rebabbitting of plain journals gives way to long, carefree service, and at economical costs.

Modern production and specialization has made almost every unit of apparatus vital in the accomplishment of a definite purpose, and each unit depending upon another must perform exactly as advertised.  Reliability, therefore, is not a quality to be considered only in connection with a given piece or type of apparatus, but rather something that spreads over all industry.  Throughout the processing of almost any manufactured article, or even raw material, the effect of anti-friction bearings can be observed today.  In the deepest mines ball and roller bearings are permitting high efficiency and low cost.  In the actual obtaining, handling, conveying, and delivery of raw material in steel mills almost every process depends to some extent on anti-friction bearings.  In transportation in the air, on land, and on sea, they are contributing to the prompt and efficient dispatch of materials to thousands of manufacturing plants where more efficient machinery is delivering products of an endless variety to their respective fields of usefulness.  In the textile field utilization of anti-friction bearings has been carried out to a remarkable degree.  Millions of automobiles are creating records of economical performance from advantages obtained with anit-friction bearings.  In power transmission, in the ventilating industry, in the paper industry and in many other specialized fields they are outstanding in their performance.

Part 2 of 2 — Modern Development of Anti-Friction Bearings … from the standpoint of Precision  and Lubrication coming on Tuesday, November 23 …

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 !!!!!

Optibelt Red Power II Advantages

Thursday, November 11th, 2010

Wrapped Wedge Belts, Kraftbands and Pulleys

Advantage 1Maintenance Free New production methods and new raw materials enable them for the first time to manufacture a wrapped wedge belt with requires absolutely no maintenance and which is of such low stretch that an Optibelt RED POWER II wedge belt correctly pretensioned once, does  any further retensioning.  As far as initial fitting of the Optibelt RED POWER II wedge belt is concerned, the same calculation methods and pretension values apply as for Optibelt standard wedge belts.
Advantage 2Strong Power Rating The power ratings of Optibelt RED POWER II speak for themselves.  Compared to present day wrapped wedge belts, they are extremely high depending on section and pulley diameter.  In many cases, the performance level reaches the values of raw edge, molded cogged wedge belts.  Drive efficiency is as high as 97%.  Optibelt RED PWER II are oil, heat and dust resistant as standard. Heat resistance is also compared to raw edge V-belts but heading a smoother running belt drive.
Advantage 3Cost Savings A special advantage of the Optibelt RED POWER II is the fact that real money can be saved.  Based on its high power ratings, fewer belts per drive are to be used!  With other words:  fewer belts,   and less space required.  Therefore:  lower costs and higher power rating.What an argument!By the way:  Optibelt RED POWER II is also available as a kraftband
Advantage 4SetConstant Naturally, S=C PLUS applies to Optibelt RED POWER II, too.  Because of the fact that it is insensitive towards performance shocks, the “new one” runs especially well in sets, proverbial smooth running.  The tolerances of Optibelt RED POWER II are substantially lower than the set tolerances fixed by industry standards.
Advantage 5Environmentally Friendly Contrary to many other transmission belts, there is virtually no material waste during the production of the se3rvice free wrapped wedge belt Optibelt RED POWER II.  We can proudly say that we achieved the goal of producing the most environmentally friendly transmission belt.

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.