NSK NH 20 Assembly And Installation Manual Download Page 12 | Manualshive

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: LG_HANDBOOK - REV 2 / APB / 1M15 ( NSK Americas )

Every care has been taken to ensure the infor mation in this publication is accurate but no liability can be accepted for
any errors or omissions. © Copyright NSK 2017. The contents of this publication are the copyright of the publishers.
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Summary of Contents for NH 20

Page 1: ...ASSEMBLY AND INSTALLATION OF NSK LINEAR GUIDES GENERAL INDUSTRIAL APPLICATIONS SUBSCRIBE TO NSK NEWSLETTER SUBSCRIBE TO NSK NEWSLETTER ...

Page 2: ...plied 3 Precautions in use a Make every effort not to allow dust and foreign objects to enter b The temperature of the place where linear guides are used should not exceed 80 C excluding heat resistant type linear guides A higher temperature may damage the plastic end cap c If the user cuts the rail thoroughly remove burrs and sharp edges on the cut surface d When hanging upside down e g the rail ...

Page 3: ...en smooth motion versus high accuracy is required NSK recommends the interchangeable series NH and NS linear guides for general industrial applications Their self aligning feature means a greater tolerance for alignment errors and less time spent on installation Also they are interchangeable between rail and slider easily allowing the addition or replacement of parts For interchangeable NH and NS ...

Page 4: ...ide from the provisional rail onto the rail or vice versa butt the provisional rail up against the rail and slide the ball slide directly from one onto the other It is a good idea to secure the ball slide onto the provisional rail with a rubber band after removal from the rail The ball slides are designed with retaining wires to prevent the balls from falling out when they are removed from the rai...

Page 5: ...rooves It is normal to have a gap of 1 5 ball diameters in each groove The following section describes how to install the linear guides on the machine Ball slides and rails are supplied separately Each is wrapped in vinyl sheet and packed in a container Plastic and brass rail caps are an available option for use in high contamination areas to prevent debris build up in the bolt holes which may dam...

Page 6: ...r guides the mounting bolt holes are processed after heat treatment using a precision machining center therefore the bolt hole pitch accuracy is as good as the positioning accuracy of the machine which is considered very good When tightening the bolts be sure to start at one end and work in order to the other end If the bolts are tightened at the middle first it tends to leave the rail curved If y...

Page 7: ...n position ball slide 3 at the left end of the adjusting rail and bolt the table to this ball slide Move the ball slide 3 to right and bolt the table to the ball slide 4 Move the table to one end of the rails and start tightening the adjusting rail bolt sequentially to the specified torque while checking excessive friction of table movement Continue moving the table down the rail tightening each a...

Page 8: ...f the rail to the straightedge until the desired reading is made and tighten the bolt to the specified torque When all of the bolts have been tightened slide the dial indicator from one end of the rail to the other to ensure that the desired straightness has been achieved During installation it is recommended that accuracy is checked to ensure smooth operation Position the dial indicator on two ba...

Page 9: ...isit www nskamericas com for contact information Recommended allowable installation error of the NS Series Maximum Item Model No 15 20 25 30 35 Clearance Z0 ZT Permissible values of parallelism in two rails e1 20 22 30 35 40 Permissible values of parallelism height in two rails e2 375mm 500mm Preload Z1 ZZ Permissible values of parallelism in two rails e1 15 17 20 25 30 Permissible values of paral...

Page 10: ...rated Avoid storage in direct sunlight 2 Never leave the linear guide in close proximity to grease removing organic solvents such as hexane thinners etc Never immerse the linear guide in kerosene or rust preventative oils which contain kerosene Note Other oils such as water based cutting oil oil based cutting oil grease mineral oil AS2 ester PS2 present no problems to the K1TM lubricating units pe...

Page 11: ... of bearing against the end cap 7 Install K1TM lubricating unit without fixing rings so it can be expanded over the rail 8 Put the three 3 fixing rings in position on the K1TM lubricating unit 9 Replace the end seal in front of the K1TM lubricating unit 10 Install connector screw for grease fitting 11 Replace the grease fitting in connector screw 12 Install the extension Phillips screws 2 pieces s...

Page 12: ...Migdałowa 4 73 02 796 Warszawa Tel 48 22 645 15 25 Fax 48 22 645 15 29 info pl nsk com Russia NSK Polska Sp z o o Russian Branch Office I 703 Bldg 29 18th Line of Vasilievskiy Ostrov Saint Petersburg 199178 Tel 7 812 3325071 Fax 7 812 3325072 info ru nsk com South Africa NSK South Africa Pty Ltd 25 Galaxy Avenue Linbro Business Park Sandton 2146 Tel 27 011 458 3600 Fax 27 011 458 3608 nsk sa nsk c...

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