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The main spindle has a wide range of speeds to ensure proper grinder feed rates are maintained. On October 19, 2022, the United States Department of Justice charged four individuals and two companies with violating U.S. export laws by attempting to smuggle a jig grinder, which is a dual use, export-controlled item, to Russia.
The fischer S-plug. One of the first commercial inventions of Artur Fischer was the synchronous camera flash which was sold to Agfa. In 1958 Artur Fischer designed the first plastic S-Plug which enables screws to be fastened into masonry substrate. Strong demand meant the company expanded rapidly and within three years the first subsidiaries ...
The Winsted Precision Ball Company was founded in 1949 with the sole purpose of manufacturing high-precision balls for the use in miniature precision ball bearings. Acquired by Barden Corporation in the 1960s, [ 26 ] WPBC is not a separate legal entity, but a department of the Barden Corporation's Danbury location.
A health insurance for the staff was established in 1867, and one year later the construction and purchase of workers' houses began in Mühlental, which is dominated by Georg Fischer. From 1876, an accident insurance was put into place at Georg Fischer, and in 1880, one of the first company restaurants in Switzerland was set up in Mühlental.
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1896 - Fischer applies for permission to build a new plant near the train station in Schweinfurt – a step towards a new industrial dimension. The new plant produces 10 million balls per week. The company is incorporated one year later. 1899 - Friedrich Fischer suffered a stroke and died at the age of 50 on October 2. He did not have any children.
The spindle runs in precision bearings and is fitted with some means of attaching workholding devices such as chucks or faceplates. This end of the spindle usually also has an included taper, frequently a Morse taper, to allow the insertion of hollow tubular (Morse standard) tapers to reduce the size of the tapered hole, and permit use of centers.
A machine tool may have several spindles, such as the headstock and tailstock spindles on a bench lathe. The main spindle is usually the biggest one. References to "the spindle" without further qualification imply the main spindle. Some machine tools that specialize in high-volume mass production have a group of 4, 6, or even more main spindles.