NSK bearings eliminate failures in concrete floor manufacturing machine Regular bearing failures in a concrete floor manufacturing machine were leading to extensive downtime, costly lost production, and high maintenance costs. To rectify the problem, the customer turned to the expertise of NSK, which redesigned the wheel hub and stub axle assembly to reduce failure rates from 20 a year, to zero. An investigation of the machine and its failed bearings by our expert team found that the main problem was with the cassettes, due to poor wheel design and the ingress of contamination. We redesigned the wheel hub and stub axle assembly, including a sealed roller bearing unit selected specifically for the loads in the machine. Furthermore, integral seals provided greater protection for the bearings. By reducing failures to zero, our customer is achieving savings of €68,607 per annum. Discover more here.