Page 387 - Analysis and Design of Machine Elements
P. 387

13                                                                        365

                          Couplings and Clutches









































                          Nomenclature                         K    service factor
                                                                 A
                                                               n    rotational speed, rpm
                          D    inside diameter of clutch surface,  [n]  limiting rotational speed, rpm
                           i
                               mm                              p    pressure on frictional surface, MPa
                          D    outside diameter of clutch surface,  [p]  allowablepressureonfrictional
                           o
                               mm                                   surface, MPa
                          d    shaft diameter, mm              T    nominal torque, N mm
                          F    normal force at clutch surface, N  T ca  design torque of a coupling or
                          f    coefficient of friction                clutch, N mm

                          Analysis and Design of Machine Elements, First Edition. Wei Jiang.
                          © 2019 John Wiley & Sons Singapore Pte. Ltd. Published 2019 by John Wiley & Sons Singapore Pte. Ltd.
                          Companion website: www.wiley.com/go/Jiang/analysis_of_machine_elements
   382   383   384   385   386   387   388   389   390   391   392