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When selecting a ball screw for a machine-tool application, be sure to consider a variety of critical parameters first-including (but not limited to) load profile, linear and rotational speed, rates of acceleration, cycle rate, drive torque limits, environmental issues, required life, lead accuracy and system stiffness. All will have an influence on performance. In matching [...] On Nov 26, 2008 National Bearing Industry Quality Work Conference was held in Luoyang City, Henan Province. 55 delegates from 48 companies in the whole country were invited to attend this conference. This work conference was presided by Tang Jie, Standing Deputy Director of National Bearing Quality Testing Center and Lu Gang, Assistant Secretary General [...] The RBC Roller design is unique and is covered by Patent 5531137. Two paths of cylindrical rollers create stable outer ring support. The comparatively large diameter of the rollers provides substantially increased dynamic capacity and fatigue life. On a size by size basis, the RBC Roller offers at least twice, and up to nine times [...] European Bearing Corp. (Russia) has reportedly shut down production at its plants in Saratov and Volgograd for several weeks. Scattered local and state news agency reports indicate that several of the company’s key customers have been slow or unable to pay long-overdue bills. The resulting liquidity crisis has left EBC unable to buy enough [...] Minebea Co. Ltd. (Japan) announced it will close the NMB-Skegness UK ball bearing manufacturing plant after a mandatory 90-day consultation period. In the meantime, Minebea has pledged to pursue viable alternatives to keep it operating. The Skegness facility, in England’s Lincolnshire industrial area, is vertically integrated and manufactures high-volume semi-commodity small ball bearings for [...] A needle roller bearing is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface. Needle bearing have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft [...] |
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