After you choose the body length and outside diamesion, pls must depart us message the internal hole size,it is very important!!!LL-B-D25L35/40Rigid couplingONE SIDE HOLE SIZE CAN MESSAGE(D1):5/6/7/8/9/10/11/12MMTHE OTHER SIDE HOLE SIZE CAN MESSAGE(D2):5/6/7/8/9/10/11/12MMFor example: LL-B-D25L35/40 D1:6 D2:8LL-B-D25L25Rigid couplingONE SIDE HOLE SIZE CAN MESSAGE(D1):5/6/7/8/9/10/11/12MMTHE OTHER SIDE HOLE SIZE CAN MESSAGE(D2):5/6/7/8/9/10/11/12MMFor example: LL-B-D20L25 D1:6 D2:81set customise feeShaft diameterKeyway widthKeyway depthTolarance0.5usd for LD / LF / LB / LE1usd for LL / LT/ LR 2usd 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)MNumber of screws(pcs)L1(mm)Screw fasten torque(n.m)LL-B-D16L1616163-8M2.5241.1LL-B-D16L2416243-8M2.5231.1LL-B-D20L2020204-10M3252.1LL-B-D20L2520254-10M326.252.1LL-B-D20L3020304-10M3442.1LL-B-D25L2525255-12M326.52.1LL-B-D25L3525355-12M345.52.1LL-B-D25L4025405-12M3452.1LL-B-D32L3232326-16M427.54.9LL-B-D32L4232426-16M4464.9LL-B-D32L4532456-16M545.7510LL-B-D40L5040508-20M526.510LL-B-D40L6040608-20M54810LL-D-D16L1616163-8M3/42.1LL-D-D16L2416244-8M3/82.1LL-D-D20L2020204-10M3/52.1LL-D-D20L3020305-10M3/102.1LL-D-D25L2525255-12M4/6.54.9LL-D-D25L3525356-12M4/124.9LL-D-D32L3232326-16M5/810LL-D-D32L4232428-16M5/1210ModelRated torque(n.m)Maximum torque(n.m)Maximum speed(rpm)Moment of inertia(kg.m2)Permissible parallel misallgnment(mm)Permissible angular misallgnment(degree)Weight(g)LL-B-D16L1657.594002.9*10-7//19LL-B-D16L2457.594002.9*10-7//23LL-B-D20L20101575008.6*10-6//27LL-B-D20L25101575008.6*10-6//31LL-B-D20L30101575008.6*10-6//35LL-B-D25L25121860002.7*10-6//43LL-B-D25L35121860002.7*10-6//56LL-B-D25L401522.547007.1*10-6//63LL-B-D32L321522.547007.1*10-6//79LL-B-D32L421522.543006.5*10-6//101LL-B-D32L45202530005.5*10-6//108LL-B-D40L50242825004.8*10-6//180LL-B-D40L60242825004.0*10-6//213LL-D-D16L1657.5230002.9*10-7//19LL-D-D16L2457.5230002.9*10-7//23LL-D-D20L201015180008.6*10-6//27LL-D-D20L301015180008.6*10-6//35LL-D-D25L251218140002.7*10-6//43LL-D-D25L351218140002.7*10-6//56LL-D-D32L321522.5110007.1*10-6//79LL-D-D32L421522.5110007.1*10-6//101