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MAHR - Шариковые направляющие Marmotion - 2010 Английский язык
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- 18 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
Closed Guide Bush with Stop Rings
N 552
Suitability
Design as for N 550, with stop rings fixed on both sides.
• When used in combination with shaft diameter dw ISO-h3, preloading of the rotary
stroke bearings is guaranteed.
• The stop rings ensure the cage is effectively restricted for linear and rotary movements.
• Smooth running of the rotary stroke bearing is not impaired by the stop rings.
Features
• Stop rings fixed on both sides.
• The closed guide bush and integrated ball cage form a separate component.
• 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.
• Outside diameter dB n4 with radial run-out error within IT 4, ground to guide bore
diameter d1, lead-in taper on one side.
• The maximum stroke path Hmax is determined from the length of guide bush l3 and the
length of the ball cage l2: Hmax = 2 (l3-l2).
• 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
• Steel stop rings
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 552/dw/d1/l1 Order No. 5003 . . .
Ball cage N 501/dw/d1/l2 Order No. 50010 . .
or
Ball cage N 500/dw/d1/l2 Order No. 50000 . .
mahr@mahr-tools.ru
www.mahr-tools.ru