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NSK Linear Guides™ Miniature PU Series/PE Series

                         Smoother motion

                       The resin ball recirculation component creates an
                       optimal configuration, resulting in smoother motion.

                            Test conditions: O il lubrication (VG68)
                                                  Operating speed: 1 000 mm/min
                                                  Load cell rated capacity: 5N

                       Friction force, N      1
                                           0.5
               PU09TR                                                     100 200 300                            400
              PE09TR                          0                             Movement distance, mm
                                          −0.5

                                            −1
                                                0

                                                                  Fig. 1-1 Fluctuations in dynamic friction

                         Low dust generation

                       The PU series/PE series, with resin ball recirculation
                       components, generates less dust than a
                       conventional ball recirculation system that goes
                       right through the ball slide.

                            Test conditions: Grease lubrication (LG2)
                                                  Operating speed: 600 mm/min
                                                  Stroke: 200 mm

                       Dust generation rate                       10 000
                          (particles/0.02832 m3),
                             Particle diameter of 0.1 μm or more                                              LU15
                                                                                                              PU15

                                                                  1 000

                                                                  100          20 40 60                   80        100
                                                                       0                        Time, hr

                                                                          Fig. 1-2 Dust generation rate

                                                                          Ball slide body

              PU15     Molded resin ball                                        Minute clearance is maintained.
                       recirculation                                      Fig. 2 Cross sectional front view
                       component

Cutaway view

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