Ads
related to: thk linear rails
Search results
Results from the WOW.Com Content Network
THK Co., Ltd. is a Japanese company that offers machine elements and modules in the field of mechanical engineering, [1] robotics [2] and automation. The headquarters are in Tokyo. Since it was founded in April 1971, the company has developed into an international company.
A linear-motion bearing or linear slide is a bearing designed to provide free motion in one direction. There are many different types of linear motion bearings. Motorized linear slides such as machine slides, X-Y tables, roller tables and some dovetail slides are bearings moved by drive mechanisms. Not all linear slides are motorized, and non ...
Pacific Bearing was originally created as the sales company for Premac, but the two officially merged in 1985. During the 1980s, the re-formed company shifted focus from metalworking to bearing manufacturing. Its first bearing product was a line of self-lubricating bearings; [4] the company also manufactured bushings, thrust bearings, and skid ...
In a feature control frame (FCF), the ⌀ symbol tells you that the tolerance zone for the geometric tolerance is cylindrical. Abbreviations for "diameter" include ⌀, DIA, and D. D. diameter; delta. Abbreviations for "diameter" include ⌀, DIA, and D. For delta usage, see for example "delta notes". DIA[2] diameter.
Cast iron rails, 4 feet (1.2 m) long, began to be used in the 1790s and by 1820, 15-foot-long (4.6 m) wrought iron rails were in use. The first steel rails were made in 1857 and standard rail lengths increased over time from 30 to 60 feet (9.1–18.3 m). Rails were typically specified by units of weight per linear length and these also increased.
A rack and pinion has roughly the same purpose than a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.
Ads
related to: thk linear rails