The helical gear has a lateral force on the shaft.
To eliminate this force, a gear is made into a helical gear with the opposite direction of symmetry to eliminate this force.
It looks like a personal character, referred to as a herringbone gear.
The herringbone gear has the advantages of high degree of coincidence, small axial load, high load carrying capacity and stable operation.
The transmission mode of the main motor or motor unit is transmitted to the roll by the herringbone gear base.
Herringbone gears cannot be machined by the pinning and hobbing methods.
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