Fitting Recommendations For most applications, the fit tolerances m6/H7 are normally acceptable, alternatively as the following tabulation. Description Application Shaft tolerance Bore tolerance Sliding fit with parallel key connection not suitable for j6 H7 For steel and cast hubs reversing operation. h6 J7 Press fit with parallel key connection not suitable for h6 K7 For steel and cast hubs reversing operation. k6 H7 m6 H7 For steel and cast hubs n6 H7 h6 M7 Interference fit with parallel key connection suitable for h6 P7 reversing operation. Only for steel hubs k6 M7 Preferred for ZAPEX m6 K7 and ARPEX n6 J7 coupling series. p6 H7 s6 F7 Only for steel hubs u6 H6 Shrink fit connection without parallel key. The permitted hub tension v6 H6 must be urgently checked. x6 H6 Tolerance Table to DIN ISO 286 for Above-Mentioned Fits for Bore Diameters from 10 to 250 mm Tolerances in μm Bore Diameter Bore Shaft Above Up to F7 H7 J7 K7 M7 P7 h6 j6 k6 m6 n6 p6 10 18 +34 +18 +10 +6 0 -11 0 +8 +12 +18 +23 +29 +16 0 -8 -12 -18 -29 -11 -3 +1 +7 +12 +18 18 30 +41 +21 +12 +6 0 -14 0 +9 +15 +21 +28 +35 +20 0 -9 -15 -21 -35 -13 -4 +2 +8 +15 +22 30 50 +50 +25 +14 +7 0 -17 0 +11 +18 +25 +33 +42 +25 0 -11 -18 -25 -42 -16 -5 +2 +9 +17 +26 50 80 +60 +30 +18 +9 0 -21 0 +12 +21 +30 +39 +51 +30 0 -12 -21 -30 -51 -19 -7 +2 +11 +20 +32 80 120 +71 +35 +22 +10 0 -24 0 +13 +25 +35 +45 +59 +36 0 -13 -25 -35 -59 -22 -9 +3 +13 +23 +37 120 180 +83 +40 +26 +12 0 -28 0 +14 +28 +40 +52 +68 +43 0 -14 -28 -40 -68 -25 -11 +3 +15 +27 +43 180 250 +96 +46 +30 +13 0 -33 0 +16 +33 +46 +60 +79 +50 0 -16 -33 -46 -79 -29 -13 +4 +17 +31 +50 www.jbj.co.uk/couplings.html#flender 18 #DriveLineHarmony Fitting Recommendations Mechanical Power Transmission Couplings
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