HRT turntable bearings consist of a thrust/radial seat ring, a thrust/radial shaft ring, a thrust washer, two needle roller cage assemblies and a set of radial cylindrical rollers. The seat washer and shaft washer have evenly spaced mounting screw holes. This type of bearing has high axial and radial load capacity, high tilt stiffness and extremely high precision. Suitable for rotary tables and bearing arrangements in measurements and experiments. This type of bearing also has relatively high requirements for matching equipment parts. The tightening torque of the mounting screws needs to be controlled during installation.