ZD High Precision 78mm ZDR Series Planetary Gearbox for Servo Motor

78mm ZDR Series High Precision Planetary Gearbox For Servo Motor  Product DescriptionZDR series planetary gearbox has adopted helical gear design, so the meshing of gears can be smoother. This series has a double-supported and sealed structure, easier to install for customers. It is widely used in linear manipulators, packaging machinery, assembly lines and etc. The maximum backlash of the ZDR series is less than 5 arc.min and the reduction ratio covers 3~81.The Product Advantages of Planetary Gearbox:1.Flexible structure design, in line with various working conditions.2.Ring gear processing technology: Using internal gear slotting machine and hobbing machine; the precision of ring gear after processing can reach GB7.3.Hardened gear secondary scraping technology: secondary high-speed dry cutting of gear eliminates gear deformation caused by heat treatment. Gear accuracy can reach GB6.4.Reliable backlash testing.SpecificationsOutline Drawing:1)When input speed is 3000rpm:Product NO.Reduction RatioMotorOutput Shaft Speed (rpm)Standard Output Torque (N.m)Instantaneous max.Output Torque (N.m)Permissible Radial Load (N)Permissible Axial Load (N)Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2)Perrmissible Output Torque (N.m)Instantaneous Max. Permissible Output Torque (N.m)78ZDR375010006.3719.37843920.9136.8620.654006005.3916.29804900.3636.5719.775010.732.10.71311.534.392003333.7211.311805880.2759.7029.24009.5128.5Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.Note2) The max. input speed is 5000rpm. Usually set to 3000rpm or less.Note3) The permissble radial load is indicated on the center of the output shaft.Note4) All values are within the range corresponding to helical gear.2)When input speed is 2000rpmProduct NO.Reduction RatioMotorOutput Shaft Speed (rpm)Standard Output Torque (N.m)Instantaneous max.Output Torque (N.m)Permissible Radial Load (N)Permissible Axial Load (N)Internal Moment Ohnertia Of Input Shaftconversion (x10-4 kg.m2)Perrmissible Output Torque (N.m)Instantaneous Max. Permissible Output Torque (N.m)78ZDR34006665.0115.09004500.9136.8620.652004003.8211.511205600.3636.5719.74008.3525.10.71311.534.391002222.357.0413406700.2759.7029.22006.6419.9151001333.9111.716708330.30016.248.620011.133.2201001005.7317.217908950.29421.163.320014.844.42510080.07.1621.516708330.28821.764.920018.555.4355057.04.4313.319009500.26215.546.610012.738.1455044.45.8017.416708330.02859.5028.6815024.69.7029.216708330.02709.7029.2Note1) The moment of input shaft conversion is only gained from the reducer, so it does not include moment of inertia of the motor.Note2) The permissble radial load is indicated on the center of the output shaft.Note3) All values are within the range corresponding to helical gear.Mechanism & Parts:Double support mechanism1.The planetary gear is placed in the middle of the output shaft.2.The output shaft bearing is placed at both ends of the planetary gear.3.Separate sun gear and coupling.Compact output shaft mechanismIt adopts the design of output shaft integrated system, compact structure, high rigidity, and it can withstand large impact. Place the input coupling and the sun gear at the center of the output shaft to improve the concentricity of the components, thereby effectively controlling the gear clearance and improving the backlash of the whole gearbox.  Full needle structureThe inner bearing of the planetary gear adopts a full-needle design, the inner hole is made by a grinding process, the surface hardness is HRC60, and the cylindricity is less than 0.003mm.Ring gear structureThe integral structure of the ring gear and the output flange improves its rigidity and reduces misassembly.  Similar ProductsClick for Similar Products:    Company Profile FAQQ: What're your main products?A: We currently produce Brushed Dc Motors, Brushed Dc Gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors, Ac Motors and High Precision Planetary Gear Box etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too. Q: How to select a suitable motor?A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed lifetime and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly. Q: Do you have a customized service for your standard motors?A: Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too. Q: Do you have an individual design service for motors?A: Yes, we would like to design motors individually for our customers, but it may need some mold developing cost and design charge.  Q: What's your lea