After you select the body size and out of doors diamesion, pls should depart us message the internal hole size,it is terribly important!!!LED1-B-D68L54Single-sided flangesingle diaphragmONE SIDE HOLE SIZE CAN MESSAGE(D1):12/13/14/15/16/17/18/19/20/21/22/23/24/25MMTHE OTHER SIDE HOLE SIZE CAN MESSAGE(D2):14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35MMFor example: LED1-B-D68L54 D1:12 D2:20LED2-B-D68L74Single-sided flangedouble diaphragmONE SIDE HOLE SIZE CAN MESSAGE(D1):12/13/14/15/16/17/18/19/20/21/22/23/24/25MMTHE OTHER SIDE HOLE SIZE CAN MESSAGE(D2):14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35MMFor example: LED2-B-D68L74 D1:12 D2:201set customise feeShaft diameterKeyway widthKeyway depthTolarance0.5usd for LD / LF / LB / LE1usd for LL / LT/ LR2usd for LP (line cutting)Customization link10-12mm4mm1.8mm0.1mm12.7-17mm5mm2.3mm18-22mm6mm2.8mm23-30mm8mm3.3mm0.2mm31-38mm10mm3.3mm39-44mm12mm3.3mm45-50mm14mm3.5mm51-58mm16mm4.3mm59-65mm18mm4.4mmModelD(mm)L(mm)D1-D2(mm)D1(mm)MaMbL1(mm)L2(mm)L3(mm)Screw fasten torque(n.m)LED1-B-D26L2626264-84-1216M2.5M311.82.4/1.1/2.1LED1-B-D34L3334335-125-1622M2.5/M3M414.93.2/1.2/2.1/4.9LED1-B-D40L3540356-156-1925M2.5/M3M415.54/1.1/2.1/4.9LED1-B-D45L3545358-188-2230M3/M4M415.54/2.1/4.9LED1-B-D56L45564510-2212-3238M4M5205/10/4.9LED1-B-D68L54685412-2514-3546M5M624.55/17/10LED1-B-D82L68826814-3216-4256M6M830.86.5/44/17LED2-B-D26L3526354-84-1216M2.5M311.82.46.61.1/2.1LED2-B-D34L4534455-125-1622M2.5/M3M414.93.28.81.2/2.1/4.9LED2-B-D40L5040506-156-1925M2.5/M3M415.54111.1/2.1/4.9LED2-B-D45L5045508-188-2230M3/M4M415.54112.1/4.9LED2-B-D56L64566410-2212-3238M4M52051410/4.9LED2-B-D68L74687412-2514-3546M5M624.551517/10LED2-B-D82L98829814-3216-4256M6M830.86.523.544/17ModelRated torque(n.m)Maximum torque(n.m)Maximum speed(rpm)Moment of inertia(kg.m2)Permissible parallelmisallgnment(mm)Permissible angularmisallgnment(degree)Weight(g)LED1-B-D26L263.6650006.7*10-70.1147LED1-B-D34L3391550002.3*10-60.1191LED1-B-D40L3513.22250009*10-60.11129LED1-B-D45L35152550009*10-60.11160LED1-B-D56L4528.84845002.1*10-50.11309LED1-B-D68L5446.87845003.5*1-50.11539LED1-B-D82L6817729545004.2*10-50.11979LED2-B-D26L353.86.350006.7*10-70.1160LED2-B-D34L459.515.850002.3*10-60.11120LED2-B-D40L5013.923.150009*10-60.11180LED2-B-D45L5015.826.350009*10-60.11225LED2-B-D56L6430.250.445002.1*10-50.11435LED2-B-D68L7449.18245003.5*1-50.11735LED2-B-D82L9815531045004.2*10-50.111407