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| | | By utilizing four-point contact structure, the BG type provides extremely high rigidity. Figure I-6 shows deflection of each size of long block against radial load. Table I-6. shows the geometrical moment inertia of guide rails. Figure I-6 Block Deflection against Radial Load
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| | | Table I-6 Geometrical Moment Inertia of Guide Rails | | |
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| | | | | | | | | | | | part number | geometrical moment inertia (mm4) | mass (kg/100mm) | | | | IX(X Axis) | IY(Y Axis) | | | | BG20 | 6.50X103 | 6.00X 104 | 0.25 | | | | BG26 | 1.69X104 | 1.47X105 | 0.38 | | | | BG33 | 5.11X104 | 3.42X105 | 0.60 | | | | BG46 | 2.42X105 | 1.49X106 | 1.24 | | | | BG55 | 2.29X105 | 2.28X106 | 1.50 | | | | | | | | | | | |
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