Helical Gear

Helical Gear Application Range

Our productions mainly used in fields of mining, metallurgy, cement, sugar plant, petrochemical industry, construction, and recycling facilities, aggregate.

Which is including non-standard machinery components, custom castings, forged parts, gears, shafts, ball mill spares, rotary kiln etc.

Specification

Standard and non-standard

Carbon steel, alloy steel

Forging, machining, heat treatment, Carburizing and quenching, cemented

Surface roughness: Ra0.8 after grinding

UT,MT, PT

Diameter: ≤13m

Module: ≤45

· Tooth Angle: The teeth of a helical gear are angled (usually between 15° and 30°) to the axis of rotation, unlike the straight teeth of spur gears.

· Smooth Engagement: Because the teeth engage gradually, helical gears produce less noise and vibration compared to spur gears.

· Higher Load Capacity: Helical gears can transmit more power and handle higher loads, making them suitable for applications requiring heavy-duty operation.

· Efficiency: They are more efficient than spur gears when operating at higher speeds because they have a more continuous contact between teeth.

Key Parameters in Helical Gear Design

Module (m):

The ratio of the pitch diameter to the number of teeth, determining the size of the teeth.

Helix Angle (β):

Determines the smoothness of operation and the magnitude of axial thrust.

Pressure Angle (α):

Typically 20° for standard helical gears.

Face Width (b):

The width of the gear along the axial direction. Larger face widths increase the load-carrying capacity.

Pitch Diameter (D):

The diameter of the pitch circle, where the gear teeth effectively engage.

Types of Helical Gears

Parallel Shaft Helical Gears:

Used to transmit power between shafts that are parallel.

Widely used in gearboxes and automotive transmissions.

Crossed Helical Gears:

Used for non-parallel, non-intersecting shafts.

Generally for lower torque applications.

Advantages of Helical Gears

Smooth and Quiet Operation:

Gradual tooth engagement reduces noise and vibration.

High Load Capacity:

Multiple teeth are engaged at any given time, distributing the load more evenly.

Durability:

Reduced wear and tear due to smoother contact.

Flexibility in Applications:

Can transmit motion and power between parallel or non-parallel shafts.