table of contents pages 1 rbc ball screws 4-5 1.1 classification of ball ... screws 1.2 standard precision ground ball screw availability table 1.3 standard ... precision rolled ball screw availability table 6-7 2.1 ... static rated load coa 8.3.2 calculation of allowable load 8.3.3 standard material ... 4 hardness coefficient 25-27 2 features of rbc ball screws 9 driving torque 9.1 ... ball screw torque 9.1.1 normal operation 9.1 ... torque during acceleration 27-29 3 rbc ball screw selection procedure flow chart 4 ... accuracy of rbc ball screws 4.1 lead accuracy 4.2 mounting ... method 29-31 5 screw shaft design 5.1 ball screw manufacturing capability 5.2 ... 6.1 nut selection 6.1.1 series 6.1.2 ball re-circulation type 6.1.3 design of ... nut designs 12 rbc precision ground ball screws dimensional tables 35-55 7 ...
shaft root dia 5.4.2 dm·n value the allowable rotation speed is also ... restricted by the ability of the ball re-circulation system to withstand ... higher speeds the term for this measure is the dm·n value ... dm ball circle diameter n rotation speed min-1 ... many ball screw manufacturers sell product with a ... non-heat treated ball re-circulation system which limits the ... in/min 70,000 mm/min rbc s standard ball re-circulation systems are heat treated ... and are rated per the table below max dm·n in min 3,937 4, ... 100,000 120,000 120,000 return system type heat treated tube deflector yoke ... tube combination for speeds beyond these values consult rbc 17 ...