Herringbone Gears for Paper and Pulp Chemical Processing and Material Handling Equipment

1.Structural Characteristics of Herringbone Gear
Helical gears consist of two helical gears with opposing spiral directions arranged side-by-side. Their tooth profile forms a ‘V’ shape,

with no clearance between the left and right spirals. Viewed from the end face, the tooth profile curve resembles a fishbone pattern.
2.Advantages of Herringbone Gear
a) High load capacity: The unique tooth profile design enables more even load distribution across the teeth.

With relatively longer tooth length, these gears can transmit high torque, making them suitable for heavy-duty applications.
b) Low Vibration and Noise: Symmetrical design counteracts axial thrust, resulting in smoother gear operation.

This reduces vibration and noise, enhancing equipment stability and operational comfort.
c) High Contact Ratio: Typically achieves greater overlap than spur gears, ensuring more teeth are in contact at any given moment.

This guarantees more uniform load distribution and minimises the risk of tooth failure.
d) Superior lubrication performance: The double-helical design promotes enhanced oil flow, ensuring effective lubrication between mating surfaces

and reducing the likelihood of premature wear or damage.
e) High misalignment tolerance: The symmetrical tooth arrangement helps compensate for minor misalignment,

ensuring smooth gear meshing and preventing premature wear.

3.Applications of Herringbone Gear
a) Automotive Industry: Frequently employed in automotive transmissions to deliver smooth, precise gear changes.

Also utilised in differentials to transmit torque from the engine to the wheels, enabling seamless cornering.
b) Aerospace Industry: Functions within aircraft engines, helicopter gearboxes, and landing gear systems, delivering the requisite strength

and load-bearing capacity for these high-reliability applications. Ensures stable operation of rotor systems and other critical components.
c) Precision Machinery: Widely employed in machine tools and robotics, guaranteeing high-precision motion control and positioning.

Its unique tooth design helps eliminate backlash, ensuring accurate movement.
d) Power Generation: Efficiently transmits power within wind turbines, hydroelectric generators and other power generation equipment,

withstanding heavy loads while delivering reliable power transfer.
e) Industrial Machinery: Employed in rolling mills, extruders, heavy-duty conveyors and similar industrial equipment,

handling substantial loads with precise motion control to guarantee efficient manufacturing processes.

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Herringbone Gears for Paper and Pulp Chemical Processing and Material Handling Equipment Images