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Custom-made Guide Rails 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 25 50 L A N GRE20 GRE28 A. N. P=100 P=160 2233445566778899 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 20 45 70 15 40 65 10 35 60 85 30 55 80 25 50 75 20 45 70 15 40 65 10 35 60 85 30 55 80 25 50 75 20 45 70 15 40 22233344445556667778889999 10 10 10 11 11 11 12 12 12 13 13 (Unit: mm) A N P~iN|1j L A œSelect the proper mounting pitch P shown in the right table according to the series. œThe end dimension A is the same at both ends. œThe end dimension A should be 10 mm or more. œSelect the proper number of mounting holes appropriate to the design guide rail length in the right table. œSelect the number of mounting holes of the longer rail if the required length is shorter than the listed L. (e.g.) When the width is 20mm and the length is 450mm. GRE20-450 Expression of calculating the end dimension A Calculation expression if A found with the above expression is less than 10 mm A= L | o P @~i@N@|@1j p 2 A= L | o P @~i@N@|@2j p 2 A=@10 9 0 | o 1 @00@~i@1@1 |@1@jp =45 End dimension 2 The end dimension = 45 mm and the number of mounting holes = 11 are found. Calculation example (GRE20-1090) Select the special-dimension guide rail 1100 mm (P = 100, N = 11) in the right table if the necessary guide rail dimension is 1090 mm. GRE@@@ - @@ Parts No. Width Length œ Product Identification Specify by 282 Selection Guide Product Information Plastic Bearing Multi-layer Bearing Metallic Bearing Air Bearings Technical Slide Shifter Information Corporate Profi le