Page 11 - e3239
P. 11

PSS Type for General Uses

                               2- 3.4drill thru                                                              Unit : mm        PSS
                                 (equally spaced)
                                                                               Ball screw specification
                                            PCD 25
                                                             Ball dia./screw shaft root dia.  1.588 / 6.6
                9.5 9.5
                        19                                   Ball circle dia.                           8.3

              Cross-section X X                              Accuracy grade/axial play        C5/ 0.005 mm or less

                                                             Factory-packed grease            NSK grease PS2

                                                             [Recommended support unit]

                                                                     For drive side
                                                                          (Fixed)

                                                             WBK06-01M (square) P 45
                                                             WBK06-11M (round) P 47

              Lead accuracy                         Dynamic         Permissible          Internal                  Unit : mm
                                                    preload          rotational           spatial
Target value  Error          Variation               torque  Mass                       volume of         Standard
      T        ep                Vu                                    speed                             volume of
                                                     (N·cm)   (kg)    (min-1) 1             nut
                                                             0.09                         (cm3)            grease
0 20 18 0.5 or less                                           0.11      5 000                           replenishing
                                                              0.10                          0.4
                                                              0.12                                          (cm3)
                                                                                            0.5
                                                                                                              0.2
                                                                                            0.4
                                                                                                              0.3
                                                                                            0.6
                                                                                                              0.2

                                                                                                              0.3

2. Service temperature range is 0 to 80ºC.
3. Use of NSK support unit is recommended. Refer to pages 45 to 48 for details.
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