Page 38 of Ball Screws by RBC Bearings
12.2 im series metric internal ball return integral flange abdfec major model no screw dia mm in im1605 im2005 im2505 im3205 im4005 im4010 im5005 im5010 im6310 im8010 16 20 25 32 40 40 50 50 63 80 0.614 0.772 0.969 1.244 1.559 1.559 1.949 1.949 2.461 3.130 0.1378 0.1378 0.1378 0.1378 0.1378 0.2812 0.1378 0.2812 0.2812 0.2812 ball dia lead mm abcd max efgh 5 5 5 5 5 10 5 10 10 10 2.165 2.205 2.850 3.250 3.540 6.260 4.985 6.365 6.615 8.270 0.393 0.393 0.393 0.472 0.472 0.550 0.630 0.630 0.710 0.790 0.393 0.393 0.393 0.393 0.393 0.630 0.630 0.630 0.630 0.630 1.1021 1.3776 1.5744 1.9681 2.4800 2.4800 2.9524 2.9524 3.5428 4.1334 1.097 1.373 1.569 1.963 2.475 2.475 2.947 2.947 3.538 4.128 1.890 2.165 2.440 3.150 3.660 3.660 4.330 4.330 4.920 5.710 1.575 1.732 1.890 2.441 2.756 2.756 3.346 3.346 3.740 4.331 0.217 0.217 0.260 0.354 0.354 0.354 0.433 0.433 0.433 0.531 dimensions in inches unless specified 38
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