QA1 GEZ44ES2RS GEZ Series Spherical Bearing 52100 Steel 1-3/4in. BoreQA1 GEZ44ES2RS GEZ Series Spherical Bearing 52100 Steel 1 3 4in. Bore QA1s GEZ (2RS) Series fractured race spherical bearings are manufactured using 52100 bearing steel, making them a commercial grade bearing thats ideally suited for high wear and increased load applications found in many industrial markets. The rubber seals of this design help keep dirt and debris out while helping to keep lubricant in. Because of the strength of the steel, the race