high speed bearings
SANBURG HIGH-SPEED BEARINGS
NSK offers a wide lineup of precision angular contact ball bearings where customers to choose the optimum specification of bearing according to the needs of their application. NSK precision angular contact ball bearings provide the perfect solution for applications requiring high runout accuracy of rotating machine parts, such as the machine tool main spindles, or the application of faster rotating speeds
With today’s high-speed handpieces operating at up to 500,000 rpm, precise and reliable dental bearing performance is critical. Timken has more than 50 years of experience with dental components, and a thorough understanding of dental applications. Timken dental handpiece bearings are designed with precision tolerances and robust components to meet the industry’s needs for high-speed performance.
Cylindrical Roller Bearings
Construction of this roller bearing type is the simplest of all radial roller bearings. This bearing type is often used in high-speed applications. Because the inner ring, outer ring, and rollers are in line contact, this bearing type has a large radial load capacity.
Various Cylindrical roller bearing configurations are: N,NJ,NF,NU,RNU : integral ribs (flanges) NH,NP ,NUP ,NUB : integral and loose ribs NN,NNU : double-row bearings (See the Cylindrical roller bearing
dimensional data section for description of configuration design). Configurations having integral flanges or loose ribs on both the inner and outer rings can sustain a small amount of axial load.
Since this bearing type supports axial loads as sliding action between the end of the rollers and flange faces, axial loading is limited. Double-row Cylindrical roller bearings are used for high-speed, high-accuracy applications such as; main spindle support for lathes, milling machines, and machining centers.
Radial clearance of tapered-bore bearings can be adjusted during mounting of the bearing(s) onto the mating journal. Standard cages are pressed steel or polyamide resin. Machined cages of high-strength brass are used for bearings of large dimension or for high- speed applications.
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