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-      26 M a r M o t i o n . H i g h - p re c i s i o n ro t a r y s t ro k e b e a r i n g s

 Mahr

Open Guide Bush
N 550 Mini Range

                  Suitability

                  Open guide bush with tapered inside edges on both sides for use with
                  Mini Range ball cage N 502.
                  • Minimal installation space when used with Mini Range ball cages N 502.
                  • Allows universal use.
                  • When used in combination with shaft diameter dw ISO-h3, preloading of the

                   rotary stroke bearing is guaranteed.
                  • The ball cage can project out of the guide bush on both sides to permit longer

                   stroke paths (note minimum contact length).

                  Features

                  • Guide bore diameter d1 is finely honed to ISO tolerance IT 3, Rz 0.5 – 1.5 m
                   depending on diameter.

                  • Roundness within 1/3 ISO-IT 3.
                  • Cylindricity within IT 1.
                  • Radial run-out of a shaft inserted under preloading is within 0.0005 mm.
                  • Tapered inside edges on both sides ensure smooth running.
                  • Outside diameter dB n4 with radial run-out error within IT 4, ground to guide

                   bore diameter d1, lead-in taper on one side.
                  • See page 37-41 for instructions on installation and servicing.

                  Material

                  • Special roller bearing steel 100 Cr 6 (1.2067 or 1.3505)
                  • Carefully heat-treated, hardness rating HRC 60–64/HV 720–815

                  Special designs

                  Other dimensions or designs based on workpiece drawings are available.
                  These can also be produced using stainless steel (1.4112).

                  Order Information

                  Rotary stroke bearing consisting of:

                  Guide bush N 550/dw/d1/l1                                                     Order No. 5002 . . .
                  Ball cage N 502/dw/d1/l2                                                      Order No. 50002 . .

                  mahr@mahr-tools.ru
                   www.mahr-tools.ru