These 6 extreme photos prove bearings are cooler than you think. March 11, 2015 By Mike Santora 4. This LTZC slewing bearing helps CITIC’s tunnel boring machine blast more subterranean hard rock than your 32 yr. old neighbor does in his parents’ basement. Image: LTZC http://www.ltzcbearing.com/E_NewsView.asp?ID=339&SortID=46 Image: LTZC http://www.ltzcbearing.com/E_NewsView.asp?ID=339&SortID=46 Pages: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6