TY JOUR TI MACHINE UNIT ACCURACY ASSURANCE BASED ON COMMON MODULES TAKING INTO ACCOUNT JOINTS CONTACT STIFFNESS KW accuracy KW common modules KW ballscrew pair KW linear guides KW contact stiffness JO Bulletin of Bryansk state technical university AU Fedukov, A.G. AU Khandozhko, A.V. AU Polskiy, E.A. AU Shcherbakov, A.N. PY 2019 IS 2019 PB Bryansk State Technical University