An azimuth shafting bearing structure was designed for a 2 m telescope engineering project. The typical azimuth bearing structures in large Alt-azimuth telescopes were compared, and the shafting bearing scheme for integrating a high-angular contact thrust ball bearing with a radial ball bearing was put forward. The corresponding parameters of the high-angular contact thrust ball bearing were devised. Based on the Hertz contact theory and the Finite Element Method(FEM) software ANSYS, the static performance parameters within the range of 60-85° original contact angle were calculated and validated in nonlinear simulation. The 85° high-angular thrust ball bearing structure was designed with the processing technique. A prototyping bearing with a diameter of 1 500 mm was developed firstly at home and it shows good performance in a axial run-out of 0.009 mm, a radial run-out of 0.006 mm, the maximum starting torque without load of 30 N·m, and the load capacity more than 30 t. The design can offer a reliable guidance and advanced technique paths for developing the high precision azimuth shaftings of large telescope systems.