General Catalog - NB - #49

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SLIDE GUIDE SLIDE GUIDE M6 8.0 M5 4.7 M4 2.3 M3 1.0 M2 0.3 A-36 A-37 Slide guides with most commonly used lengths are available as standard. For slide guides with a nonstandard length, unless otherwise specified, the distance from one end of the rail to the first hole center (N) will be within the ranges listed in Tables A-17 and A-18, satisfying the following equation. L: length�imm�j N: distance from the end of the rail to the first hole center�imm�j P: hole pitch�imm�jM: number of pitches L��M�EP�{2N Mounting Surface Profile Slide guides are mounted by pushing the reference surface of the rail and the block against the shoulder provided on the mounting surface. An escape groove or a radius corner should be provided at the corner of the shoulder, as shown in Figs.A-48 and A-49, to prevent interference. The recommended shoulder height and corner radis are shown in Table A-19 and Table A-20 respectively. Figure A-47 Rail L M×P P N �iN�j The SER(S) type slide guides are available only with a standard (0 to slightly negative clearance) preload. Table A-17 N Dimension (standard type) unit�^‡o part number standard anti-corrosion N and over less than L max. SER 9A SER12A SER15A SER20A SERS 9A SERS12A SERS15A SERS20A 4 6 14 16.5 24 36 275 470 670 880 Table A-18 N Dimension (wide type) unit�^‡o part number standard anti-corrosion N and over less than L max. SER 9WA SER12WA SER15WA SERS 9WA SERS12WA SERS15WA 4 5 19 25 290 470 670 Figure A-48 Mounting Reference Surface Profile-1 Table A-19 Shoulder Height Dimensions unit�^‡o h2 h1 part number shoulder height on the block side h1 shoulder height on the rail side h2 SER 9A SER12A SER15A SER20A SER 9WA SER12WA SER15WA 3 4 5 3 4 5 1.5 2 3.5 5 2.5 Figure A-49 Mounting Reference Surface Profile-2 Table A-20 Maximum Corner Radius Values unit�^‡o r1 r1 r2 r2 part number block mounting part r1 rail mounting part r2 SER 9A SER12A SER15A SER20A SER 9WA SER12WA SER15WA 0.3 0.1 0.3 0.5 0.3 Recommended Torque Values The screws to fasten the rail should be tightened to an equal toque using a torque wrench in order to secure the motion accuracy. The recommended torque values are given in Table A-21. Please adjust the torque depending on the operating conditions. Table A-21 Recommended Torque unit�^N�Em size recommended torque �ifor stainless steel screw A2-70�j Small screws for the SER(S) type slide guide are available from NB. size M2 Table A-22�@ unit�^‡o pitch 0.4 length 4,5,6,8,10 application SER 9A (stainless steel) Figure A-50 Mounting Screw M A high grade lithium soap based grease is applied to the NB slide guides prior to shipment for immediate use. Please relubricate with a similar type of grease periodically depending on the operating conditions. For use in clean rooms or vacuum environments, NB slide guides without grease are available upon request. Please contact NB for customer specified grease types. A special syringe lubricant dispenser is available from NB as an option. Please refer to page Eng-39 for details on the low dust generation grease. RAIL LENGTH MOUNTING PRELOAD MOUNTING SCREW LUBRICATION