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Pacific Bearing Corp
Pacific Bearing Company, PBC Linear and PBC Lineartechnik GmbH, is a manufacturer and distributor of plain bearings, linear guides and custom machining, machined parts. History Prodo Mach Corporation, the predecessor to Pacific Bearing, was incorporated December 1962 in Rockford, Illinois, before changing its name to Premac, Inc in 1963. The company purchased precision machine shop assets from Harsco Corporation's Globe Imperial division, which had been in the Rockford area since the 1940s. Premac originally manufactured ball valves; through the 1960s and 70s it expanded into making skid plates and contract machined parts for large midwestern companies, including Caterpillar Inc., Caterpillar, John Deere, International Harvester, Kendon Exeter and Case Corporation, J. I. Case. Premac was purchased by the Schroeder family in 1981 and was nearing bankruptcy by 1982, mainly due to lack of demand when Caterpillar went on strike and International Harvester left the agricultural mark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockford, Illinois
Rockford is a city in Winnebago County, Illinois, located in the far northern part of the state. Situated on the banks of the Rock River, Rockford is the county seat of Winnebago County (a small portion of the city is located in Ogle County). The largest city in Illinois outside of the Chicago metropolitan area, Rockford is the fifth-largest city in the state and the 171st most populous in the United States. According to 2020 U.S. Census data, the City of Rockford had a population of 148,655 with an outlying metropolitan area population of 348,360. Settled in the mid-1830s, the position of the city on the Rock River made its location strategic for industrial development. In the second half of the 19th century, Rockford was notable for its output of heavy machinery, hardware and tools; by the twentieth century, it was the second leading center of furniture manufacturing in the nation, and 94th largest city. During the second half of the 20th century, Rockford struggled alongs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caterpillar Inc
Caterpillar Inc. (stock symbol CAT) is an American Fortune 100, ''Fortune'' 500 corporation and the world's largest construction-equipment manufacturer. In 2018, Caterpillar was ranked number 65 on the ''Fortune'' 500 list and number 238 on the Global ''Fortune'' 500 list. Caterpillar stock is a component of the Dow Jones Industrial Average. Caterpillar Inc. traces its origins to the 1925 merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986, the company reorganized itself as a Delaware corporation under the current name, Caterpillar Inc. It announced in January 2017 that over the course of that year, it would relocate its headquarters from Peoria, Illinois, to Deerfield, Illinois, scrapping plans from 2015 of building an $800 million new headquarters complex in downtown Peoria. Its headquarters are located in Irving, Texas, since 2022. The company also licenses and markets a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motion Control
Motion control is a sub-field of automation, encompassing the systems or sub-systems involved in moving parts of machines in a controlled manner. Motion control systems are extensively used in a variety of fields for automation purposes, including precision engineering, micromanufacturing, biotechnology, and nanotechnology. The main components involved typically include a motion controller, an energy amplifier, and one or more prime movers or actuators. Motion control may be open loop or closed loop. In open loop systems, the controller sends a command through the amplifier to the prime mover or actuator, and does not know if the desired motion was actually achieved. Typical systems include stepper motor or fan control. For tighter control with more precision, a measuring device may be added to the system (usually near the end motion). When the measurement is converted to a signal that is sent back to the controller, and the controller compensates for any error, it becomes a Cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design World
''Design World'' is a U.S. trade magazine headquartered in Cleveland, Ohio with print and online issues covering topics in the field of OEM design engineering. ''Design World'' also publishes special issues and handbooks on related topics such as motion control, bearings, sensors, packaging, semiconductors, machine tools, energy, fluid power and robotics. ''Design World'' publishes twelve print editions annually that are sent to a BPA-audited circulation of 40,000 OEM design engineers. The digital version of the magazine is sent monthly to 100,000 subscribers. History ''Design World'' is owned and managed by a publishing company, WTWH Media, originally headquartered in Middleburg Heights, Ohio. The initial editorial team was established on September 1, 2006, with the first issue being published in October 2006. Sister sites to Design World include Solar Power World Solar may refer to: Astronomy * Of or relating to the Sun ** Solar telescope, a special purpose telescope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Business Media
UBM plc was a British business-to-business (B2B) events organiser headquartered in London, England, before its acquisition by Informa in 2018. It had a long history as a multinational media company. Its main focus was on B2B events, but its principal operations included live media and business-to-business communications, marketing services and data provision, and it principally served the technology, healthcare, trade and transport, ingredients and fashion industries. UBM was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index. History Newspaper interests The history of the companies that made up UBM stretches back almost two hundred years. Up until its acquisition UBM businesses published many titles that were launched in the 19th century, including ''Building'' magazine, launched in 1843 by Joseph Hansom, as well as ''Chemist & Druggist''. The company was founded in 1918 as United Newspapers by David Lloyd George to acquire the ''Daily Chronicl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design News
''Design News'' () is a monthly US trade publication published by UBM Electronics, a division of United Business Media. Design News serves the information needs of the field of design engineering. The editorial director is William Ng, with the editorial offices located in New York City. History and profile Established in 1946, ''Design News'' magazine is published 12 times per year. Each issue addresses system and product design issues related to automation & control, materials science & assembly, hardware and software design tools, and electronics/ and electronic test equipment. Common topics include CAD, design engineering, consumer electronics, and automation. As of December 2014, the total BPA audited circulation is 96,667 subscribers. Former owner Reed Business Information sold the magazine to Canon Communications in February 2010 and became part of UBM Electronics after United Business Media's purchase of Canon Communications UBM Canon (formerly Canon Communications), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrust Bearing
A thrust bearing is a particular type of rotary bearing. Like other bearings they permanently rotate between parts, but they are designed to support a predominantly axial load. Thrust bearings come in several varieties. *''Thrust ball bearings'', composed of bearing balls supported in a ring, can be used in low thrust applications where there is little axial load. *''Cylindrical thrust roller bearing''s consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very good carrying capacity and are cheap, but tend to wear due to the differences in radial speed and friction which is higher than with ball bearings. *'' Tapered roller thrust bearings'' consist of small tapered rollers arranged so that their axes all converge at a point on the axis of the bearing. The length of the roller and the diameter of the wide and the narrow ends and the angle of rollers need to be carefully calculated to provide the correct taper so that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushing (bearing)
A plain bearing, or more commonly sliding contact bearing and slide bearing (in railroading sometimes called a solid bearing, journal bearing, or friction bearing), is the simplest type of bearing, comprising just a bearing surface and no rolling elements. Therefore, the journal (i.e., the part of the shaft in contact with the bearing) slides over the bearing surface. The simplest example of a plain bearing is a shaft rotating in a hole. A simple linear bearing can be a pair of flat surfaces designed to allow motion; e.g., a drawer and the slides it rests on or the ways on the bed of a lathe. Plain bearings, in general, are the least expensive type of bearing. They are also compact and lightweight, and they have a high load-carrying capacity. Design The design of a plain bearing depends on the type of motion the bearing must provide. The three types of motions possible are: * ''Journal'' (''friction'', ''radial'' or ''rotary'') ''bearing'': This is the most common type of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bearing (mechanical)
A bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may ''prevent'' a motion by controlling the vectors of normal forces that bear on the moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts. Rotary bearings hold rotating components such as shafts or axles within mechanical systems, and transfer axial and radial loads from the source of the load to the structure supporting it. The simplest form of bearing, the ''plain bearing'', consists of a shaft rotating in a hole. Lubrication is used to reduce friction. In the ''ball bearing'' and ''roller bearing'', to reduce sliding ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metalworking
Metalworking is the process of shaping and reshaping metals to create useful objects, parts, assemblies, and large scale structures. As a term it covers a wide and diverse range of processes, skills, and tools for producing objects on every scale: from huge ships, buildings, and bridges down to precise engine parts and delicate jewelry. The historical roots of metalworking predate recorded history; its use spans cultures, civilizations and millennia. It has evolved from shaping soft, native metals like gold with simple hand tools, through the smelting of ores and hot forging of harder metals like iron, up to highly technical modern processes such as machining and welding. It has been used as an industry, a driver of trade, individual hobbies, and in the creation of art; it can be regarded as both a science and a craft. Modern metalworking processes, though diverse and specialized, can be categorized into one of three broad areas known as forming, cutting, or joining processes. Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust Belt
The Rust Belt is a region of the United States that experienced industrial decline starting in the 1950s. The U.S. manufacturing sector as a percentage of the U.S. GDP peaked in 1953 and has been in decline since, impacting certain regions and cities primarily in the Northeast and Midwest regions of the U.S., including Allentown, Buffalo, Cincinnati, Cleveland, Columbus, Jersey City, Newark, Pittsburgh, Rochester, Toledo, Trenton, Youngstown, and other areas of New Jersey, Ohio, Pennsylvania, and Upstate New York. These regions experienced and, in some cases, are continuing to experience the elimination or outsourcing of manufacturing jobs beginning in the late 20th century. The term "Rust" refers to the impact of deindustrialization, economic decline, population loss, and urban decay on these regions attributable to the shrinking of the once-powerful industrial sector especially including steelmaking, automobile manufacturing, and coal mining. The term gained popularity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Case Corporation
The Case Corporation was a manufacturer of agricultural machinery and construction equipment. Founded, in 1842, by Jerome Increase Case as the J. I. Case Threshing Machine Company, it operated under that name for most of a century. For another 66 years it was the J. I. Case Company, and was often called simply Case. In the late 19th century, Case was one of America's largest builders of steam engines, producing self-propelled portable engines, traction engines and steam tractors. It was a major producer of threshing machines and other harvesting equipment. The company also produced various machinery for the U.S. military (combat engineer equipment for the USMC, full-tracked tractors and scoop loaders for the U.S. Army, etc.). In the 20th century, Case was among the ten largest builders of farm tractors for many years. In the 1950s its construction equipment line became its primary focus, with agricultural business second. Case's corporate entities and brands changed repeat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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