NSK has developed a ball screw that minimizes grease splatter thanks to the L1 seal. The non-contact seal employs a structure that prevents grease from accumulating on the screw shaft surface, which in turn reduces the amount of grease splattered without increasing friction loss. The amount of grease splattered by ball screws is reduced to 1/10th that of the company’s previous product. A cover designed to cover the outer circumference of the seal comes standard, preventing grease that has pooled up in the circumference of the seal from dripping. The seal can be applied to existing standard-inventory ball screws. The product will be available in January 2014.
Online Reader Inquiry No. 552