[12mm 18teeth]

The 45 degree helical gear has good meshing, stable rotation, low noise, large torque and large coincidence.
The load on each pair of gears is reduced, and the load carrying capacity of the gears is improved.
The number of random teeth can be matched to form a transmission ratio.
Buy 2 to form a 90-drive torque interlaced gear.
The 45 degree helical gear can be used as a 90 degree steering gear. Standard bore with top wire for easy installation.
The gear is a hobbing process with an accuracy of 8 steps, the inner hole is finished, the tolerance is H7, and the assembly clearance needs to be increased by about 0.2mm.