Correct coupling selection guide

Parallel keyway t2 d6 d2 d3 d4 d5 60° 6,3 120° d1 t1 t3 t4 t5 Cylindrical Shaft Ends, Extract from DIN 748 Part 1 (long) Diameter in mm 24 25 28 30 32 35 38 40 42 45 48 50 55 60 65 70 75 80 85 90 95 100 ISO tolerance zone k6 m6 End length in mm 50 60 80 110 140 170 210 Central Holes According to DIN 332 Part 2 Form DS (with thread) DIN 332/2 Recommended DS form dimensions 1) 2) diameter ranges d d1 d d3 d4 d5 t1 t2 t3 t4 t5 6 2 above up to +2 min. +1 approx. approx. 7 10 M3 2.5 3.2 5.3 5.8 9 12 2.6 1.8 0.2 10 13 M4 3.3 4.3 6.7 7.4 10 14 3.2 2.1 0.3 13 16 M5 4.2 5.3 8.1 8.8 12.5 17 4 2.4 0.3 16 21 M6 5 6.4 9.6 10.5 16 21 5 2.8 0.4 21 24 M8 6.8 8.4 12.2 13.2 19 25 6 3.3 0.4 24 30 M10 8.5 10.5 14.9 16.3 22 30 7.5 3.8 0.6 30 38 M12 10.2 13 18.1 19.8 28 37 9.5 4.4 0.7 38 50 M16 14 17 23 25.3 36 45 12 5.2 1.0 50 85 M20 17.5 21 28.4 31.3 42 53 15 6.4 1.3 85 130 M24 21 25 34.2 38 50 63 18 8 1.6 3) 130 225 M30 26.5 31 40.2 44.6 60 77 22 8 1.9 3) 225 320 M36 32 37 49.7 55 74 93 22 11 2.3 3) 320 500 M42 37.5 43 60.3 66.6 84 105 26 15 2.7 1) Diameter refers to the finished workpiece. 2) Tap hole drill diameter according to DIN 336 Part 1. 3) Dimensions not according to DIN 332 Part 2. Fitting Recommendations Mechanical Power Transmission Couplings www.jbj.co.uk/couplings.html#flender 19 #DriveLineHarmony

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