PARALLEL AXIS GEARS

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Helical Gears

Higher Load Carrying Capacity Over Spur Gears

Helical

Helical Gear

Size Range and Capability for Helical Gears

Maximum Pitch Diameter – 36”
Diametral Pitch – 3.0 – 48
Face Width – 13.0
Unground Tooth – AGMA Q9
Ground Tooth – AGMA Q13

helical_gear_teeth

Helical gear teeth in mesh

Spur Gears

The Simplest Form of Parallel Axis Gears

While widely known for our bevel gear products, China Gear Manufacturing is also a leading supplier of spur gears.

Pump Gears

Pump gears are similar to spur gears in their geometry. However, pump gears are not used to transmit power between shafts. Instead, they are used for the positive displacement of fluid in pumping applications - most commonly for fuel systems. The benefit of using pump gears in this application over other methods is the precise volume of fluid that is displaced during each revolution.

Pump Gear

Pump Gear

Pump Gear

Pump Gear

Size Range and Capability for Spur Gears

Maximum Pitch Diameter – 36”
Diametral Pitch – 3.0 – 48
Face Width – 13.0
Unground Tooth – AGMA Q9
Ground Tooth – AGMA Q13

involute_wheel 2

This animation shows two involute gears rotating in mesh, with the left driving the right. The blue China Gear Manufacturings show the contact forces between the two gears.

involute-animation

Fig.1 - This animation shows the basic principle of how an involute profile is formed.

Splines

For Positive Engagement of Mating Parts

Spline Gear

Spline Gear

Size Range and Capability for Spline Gears

Maximum Pitch Diameter – 32”
Diametral Pitch – 4/8 - 80/160
Face Width – 13.0
Unground Tooth – AGMA Q9
Ground Tooth – AGMA Q13

external_spline

External spline on the shaft of a bevel gear

China Gear Manufacturing produces three types of splines which are detailed as follows.

Fig. 1 - Involute Splines

Fig. 1 - Involute Splines

Fig. 2 - Comparison of Involute and Straight Sided Serration Splines

Fig. 2 - Comparison of Involute
and Straight Sided Serration Splines

Fig. 3 - Straight Sided Splines - Internal and External

Fig. 3 - Straight Sided Splines
- Internal and External

Internal Spur Gears

For Compact, High Load Carrying Capacity

Internal Spur Gear

Size Range and Capability for Internal Spur Gears

Maximum Pitch Diameter – 32”
Diametral Pitch – 3.6 – 48
Face Width – 8.0
Unground Tooth – AGMA Q9
Ground Tooth – AGMA Q13

internal-spur-gear

Illustration of Internal Spur Gear
with mating external spur gear