SLIDE GUIDE
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SLIDE GUIDE SLIDE GUIDE SGL Type TYPES・ ・・・・・・・・・・・・・・・・・・・・・・・・・・・ A-3 ACCURACY MEASUREMENT METHOD・・・・ A-4 RIGIDITY AND PRELOAD・ ・・・・・・・・・ A-5 LOAD RATING AND RATED LIFE・・・・ A-6 MOUNTING・・・・・・・・・・・・・・・・・・・・・・・・ A-7 USE AND HANDLING PRECAUTIONS・・・・ A-12 JOINT RAILS・ ・・・・・・・・・・・・・・・・・・・・・ A-13 DUST PREVENTION・・・・・・・・・・・・・・・ A-14 ANTI-CORROSION・・・・・・・・・・・・・・・・・ A-15 LUBRICATION・・・・・・・・・・・・・・・・・・・・・ A-15 FIBER SHEET・・・・・・・・・・・・・・・・・・・・・・ A-16 REVERSE-SEAL・ ・・・・・・・・・・・・・・・・・・ A-17 BELLOWS・ ・・・・・・・・・・・・・・・・・・・・・・・・ A-18 SEB TYPE AD PROFILE (ANTI-DEFORMING)・・・・ A-19 STRUCTURE AND ADVANTAGES・・・・ A-50 BLOCK TYPES・ ・・・・・・・・・・・・・・・・・・・ A-51 ACCURACY・ ・・・・・・・・・・・・・・・・・・・・・・ A-51 PRELOAD・ ・・・・・・・・・・・・・・・・・・・・・・・・ A-52 RAIL LENGTH・ ・・・・・・・・・・・・・・・・・・・・ A-52 MOUNTING・・・・・・・・・・・・・・・・・・・・・・・・ A-52 GREASE FITTING・・・・・・・・・・・・・・・・・・ A-53 LUBRICATION・・・・・・・・・・・・・・・・・・・・・ A-53 DIMENSION TABLE・・・・・・・・・・・・・・・・ A-54～ SLIDE GUIDE SGW Type STRUCTURE AND ADVANTAGES・・・・ A-72 BLOCK TYPES・ ・・・・・・・・・・・・・・・・・・・ A-73 ACCURACY・ ・・・・・・・・・・・・・・・・・・・・・・ A-73 PRELOAD・ ・・・・・・・・・・・・・・・・・・・・・・・・ A-74 RAIL LENGTH・ ・・・・・・・・・・・・・・・・・・・・ A-

SLIDE GUIDE SLIDE GUIDE TYPES Table A-1 Types rolling element cross section and contact structure retained ball type available with all stainless steel components 2-row, compact small, light, cost effective 2-row, compact small, light, cost effective available in various types available in stainless steel miniature roller guide cross roller, high precision available with all stainless steel components ● high self-centering characteristics ● high load capacity due to relatively large ball elements ● high dust preventive control with side-seals and underseals ● available in stainless steel ●...

SLIDE GUIDE RIGIDITY AND PRELOAD ACCURACY MEASUREMENT METHOD The accuracy of slide guides is measured by fixing the rail to the reference base. The accuracy is expressed in terms of the average value at the center portion. Dimensional Tolerance and Paired Difference Figure A-1 Accuracy Measurement Motion Accuracy Figure A-2 Measurement Method for Motion Accuracy The rail is first fixed to the reference base. The motion accuracy is obtained by measuring the difference in the indicator readings when the block is moved along the entire span of the rail. Figure A-4 Elastic Deformation of...

[NIPPON BEARING LOAD RATING AND RATED LIFE Loading Direction and Load Rating A slide guide experiences load and moment, as shown in Figure A-5. For each load and moment, the basic load ratings and allowable static moments are defined. Figure A-5 Direction of Load load rating Rated Life Calculation Two types of rolling elements are used in NB slide guides: ball and roller elements. There is a different equation for calculating the rated life of each type. If the stroke length and cycles are constant, life can be expressed in terms of time, the equation is Lh: life time (hr) &s: stroke length...

SLIDE GUIDE Mounting Surface and Accuracy Figure A-7 Profile of Mounting Reference Surface NB slide guides are designed and fabricated to achieve high accuracy after mounting them to a machined mounting base. One typical way is to provide a shoulder on the mounting surface and align the reference surface of the rail or block against the shoulder (Figure A-7). To avoid corner interference, an undercut should be provided at the shoulder corner. Alternatively, the radius of the shoulder corner should be smaller than the radius of the slide guide block/rail corner. The accuracy of the rail...

SLIDE GUIDE Mounting Procedure Figure A-16 Mounting Method When reference surfaces are provided for both the table and the base, please follow the following procedure to mount the slide guide. 2. Tighten the screw for the side piece so that the installation reference surface and the rail reference surface are in close contact. (Figure A-16b) If a side piece is not provided, use a C clamp to position the mounting reference surface and the rail reference surface so that they contact each other. (Figure A-16d) 3. Tighten the mounting screws to the specified torque, and complete the mounting of...

[NIPPON BEARING NB Slide Guides are accurately tuned precision components. Please pay special attention to 9 Please install the Slide Guide as a set. It is not recommended to remove the block for installation. 9 When block removal is necessary, please use a temporary (plastic dummy) rail to prevent balls from 9 To put a guide block on the rail, as the pictures below show, align the reference surface and the height between the rail and a temporary rail. It is very important to maintain the original combination of block(s) Figure A-20 How to Put Guide Block on 9 Please do not turn around a...

SLIDE GUIDE DUST PREVENTION Seals Figure A-22 Side-Seal and Under-Seal Side-Seal (Series: SEB, SER, SGL, and SGW) The side-seals prevent foreign particles and dust from entering the guide block in order to retain the motion accuracy, resulting in a long lifetime. Bellows Option (Series: SGL) This option fully covers the guide rail preventing dust, debris, and other foreign particles from disrupting the smooth linear motion. (Refer to page A-18 for further details) SLIDE GUIDE Under-Seal (Series: SGL and SGW) Slide guides with side and under-seals are used in harsh environments or to prevent...

[NIPPON BEARING FIBER SHEET The Fiber Sheet for the SGL and SGW types, significantly extends lubricant replenishment intervals and has an excellent durability even under harsh conditions with dust and debris that absorb lubricant. Embedded in a block body, as shown in Figure A-27, it does not change the length of the block. In addition, the Fiber Sheet does not require any change in mounting dimensions, which allows replacement with existing products without a design change. Figure A-27 Magnified View of the Fiber Sheet Simplified Lubrication Management NB's Fiber Sheet is a fiber material...

SLIDE GUIDE BELLOWS By protecting the entire length of the guide rail, dust prevention is greatly enhanced. Please refer to Figure A-33 for dimensions. External dimensions and the stroke length of slide guide will change with use of bellows. Figure A-33 Dimensions of Slide Guide with Bellows part number SEB TYPE AD PROFILE (Anti-Deforming) The AD profile guide block can dissipate possible deformation by improved installation plane profile. Figure A-35 SEB type AD profile table guide block Figure A-34 External Diagram of Slide Guide with Bellows Attached Example: In this case, one(1) piece...