Helical Gear Miniature Chinese Suppliers

Helical gears offer a refinement over spur gears. The leading edges of the teeth are not parallel to the axis of rotation, but are set at an angle. Since the gear is curved, this angling makes the tooth shape a segment of a helix. Helical gears can be meshed in parallel or crossed orientations. The former refers to when the shafts are parallel to each other; this is the most common orientation. In the latter, the shafts are non-parallel, and in this configuration the gears are sometimes known as “skew gears”.
Helical gears can be paired in parallel when meshed with the same direction of helix angles (Right hand and Right hand / Left hand and Left hand) or they can be meshed perpendicular too by using a combination of opposing helix angles (Right hand and Left hand).
We standardized stainless steel and plastic Helical gears for customers in the food and packaging industries.
GPT Gear's stock helical gears are manufactured in both right- and left-handed configurations with an industry standard 45° helix angle to transmit motion and power between non-intersecting shafts that are parallel or at 90° to each other. For parallel shaft operation, helical gears with opposite-hand helix angles are required. For shafts at 90°, a same-hand helix angles must be used.
For parallel shaft applications, the overlapping tooth contact of our helical gears provides smoother, quieter operation and higher horsepower capacity than spur gears of comparable size. For 90° shaft applications, the tooth-contact area of helical gears is very small, making it ideal for applications requiring only limited load carrying capacity.
Product Features
Helical gears can be used in a variety of applications since they can be mounted on either parallel or on 90° non-intersecting shafts.
Helical gears offer additional benefits relative to spur gears:
Greater tooth strength due to the helical wrap around
Increased contact ratio due to the axial tooth overlap
Higher load carrying capacity than comparable sized spur gears.
Smoother operating characteristics
The close concentricity between the pitch diameter and outside diameter allow for smooth and quiet operation
14 1/2 Normal pressure angles
Available 24DP - 6 DP