303 QRated load (Table 1) QMoment equivalent coefficient at rail (Table 2) Max. Velocity (mm/sec) QMoment equivalent coefficient at rail (Table 3) QLoad coefficient fw (Table 6) Type LX1502 LX2001 LX2005 LX2602 LX2605 LX2610 LX3005−B LX3010−B LX3005−S LX3010−S LX4510−B LX4520−B LX4510−S LX4520−S Block Long Long Long Long Short Long Short Rail Dynamic load rating C (N) 2072 3277 6522 9732 6305 18450 11826 Static load rating Co (N) 3701 6199 11871 17218 9271 32441 17175 Radial clearances (mm) −3~0 −3~0 −4~0 −4~0 −4~0 −6~0 −6~0 Ball screw Dynamic load rating C (N) Advanced 208 482 822 1712 1600 782 1831 1129 1831 1129 4167 2499 4167 2499 Static load rating Co (N) Advanced 265 642 1026 2251 2097 961 2389 1386 2389 1386 5945 3381 5945 3381 Thread shaft diameter (mm) 5 6 6 8 8 8 1010101015151515 Lead (mm) 2 1 5 2 5 10 5 10 5 1010201020 Core diameter 4.534 5.3 4.918 6.4 6.46 6.46 8.2 8.2 8.2 8.2 11.7 11.7 11.7 11.7 Ball center diameter 5.15 6.15 6.3 8.3 8.3 8.3 10.3 10.3 10.3 10.3 15.5 15.75 15.5 15.75 Bearing (Axial direction) Basic dynamic load rating Ca (N) 678 730 1637 2702 2702 4355 4355 Allowable static load P0a (N) 415 461 1205 2197 2197 4106 4106 Type Block Kp Ky Kr LX15_ _ 1 piece 0.2762 0.2762 0.0894 LX20_ _ 1 piece 0.228 0.228 0.0667 Close contact between 2 pcs. 0.144 0.144 0.0667 LX26_ _ 1 piece 0.17 0.17 0.0527 Close contact between 2 pcs. 0.114 0.114 0.0527 LX30_ _ 1 piece 0.137 0.137 0.0445 Close contact between 2 pcs. 0.0917 0.0917 0.0445 LX45_ _ 1 piece 0.1115 0.1115 0.0334 Close contact between 2 pcs. 0.0840 0.0840 0.0334 Vibration/ impact Speed fw Subtle Super-low speed V≤ 0.25m/s 1~1.2 Small Low speed 0.25m/s<V≤ 1m/s 1.2~1.5 Medium Medium speed 1m/s <V≤ 2m/s 1.5~2 Large High speed 2m/s<V 2~3.5 Select the nominal LX actuator from the travel and the rating list below. Determine the ball screw lead so that the operation speed will be within the maximum speed shown in (Table 2). At this stage, the selection is temporary. Examine the load applied to the rail part and assign the resulting value to the Formula or on P.304 to calculate the load equivalent among processes (Fe). Assign the resulting value to the Formula on P.304 to calculate the average load (Fm) and apply the resulting value to calculation of the average life span. Examine the load applied to the ball screw and the support bearing. Assign the resulting value to the Formula on P.304 to calculate the average load (Fm) and apply the resulting value to calculation of the average life span. Ma = Pitching Mb = Yawing Mc = Rolling Ma Mb Mc X axis Y axis h *The load ratings shown on the Rail Section are load ratings for one block. * Please utilize our Technical Calculation Software for the actual life calculations. IX: Cross sectional moment of inertia around X axis. IY: Cross sectional moment of inertia around Y axis. Type Lead (mm) Rail length (mm) 75 80 100 125 150 175 200 250 300 350 400 450 500 550 600 LX15 2 330 − 330330330330330 − − − − − − − − LX20 1 −190190−190−190− − − − − − − − 5 − −694−694−694694633− − − − − − LX26 2 − −290−290−290290290− − − − − − 5 − − − − 521 − 521521521521446 − − − − LX30 5 − − − 410 410 − 410 410 410 410 410 410 370 300 250 10 − − − − 830 − 830 830 830 830 830 830 740 600 500 Type Lead (mm) Rail length (mm) 340 390 440 490 540 590 LX45 10 550 550 550 550 550 550 20 1110 1110 1110 1110 1110 1110 *The values in the table are reference values calculated based on ball screw critical speeds and DN values. Please note that the values are not guaranteed with considerations given to motor RPM and operating conditions. 2Allowable Static Load / Allowable Static Moment (Table 4) Type No. of blocks Block Type Allowable Static Load (kg) Allowable Static Moment (N∙m) Horizontal Ma Mb Mc LX15 1 Long 3701 13 13 41 LX20 1 Long 6199 27 27 93 2 12398 353 353 186 LX26 1 Long 11871 70 70 225 2 23742 902 902 450 LX30 1 Long 17218 126 126 387 2 34436 1515 1515 774 1 Short 9271 63 63 208 2 18542 579 579 417 LX45 1 Long 32441 291 291 972 2 64882 3945 3945 1944 1 Short 17175 145 145 515 2 34350 1444 1444 1029 *Double Block Type values are those measured when two blocks contact with each other. The values above are for reference in static conditions, Please utilize our Technical Calculation Software for the actual life calculations. 2Cross Sectional Moment of Inertia at Rail (Table 5) Type Cross sectional moment of inertia (mm4) Center of gravity (mm) Mass (kg/100mm) IX IY h W LX15 1.0×103 1.7×104 3.4 0.13 LX20 3.2×103 5.2×104 4.4 0.22 LX26 1.0×104 1.4×105 6.1 0.37 LX30 2.5×104 3.1×105 7.8 0.60 LX45 8.8×104 10.4×105 11.0 1.10 Single Axis Actuators (LX) Selection of Single Axis Actuators 1
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