What are Spiral Bevel Gears?
This type of gear is designed with helical teeth and is commonly used in vehicle differential. Vehicle differential refers to the direction of the drive from the vehicle’s drive shaft, which should be turned to 90 degrees to be able to drive the car’s wheels. The helical design of the spiral bevel gears makes less noise and vibration hence it is often used in many vehicles compared to the spur cut or straight-cut gear that has straight teeth. Spiral bevel gears set is typically repaired as a pair since gear manufacturers produce them in pairs.
In terms of handedness, the right-hand spiral bevel is designed to have the outer half of the tooth in an incline and at a clockwise direction from its axial plane when viewed at its face. The left-hand spiral bevel, on the other hand, is one with the outer half of its tooth inclined in a counter clockwise direction.
Benefits of Spiral Bevel Gears
What advantages can you get out of this type of gear? For one thing, bevel gears don’t have any offset which means that there is less sliding between the teeth of the gears making them more efficient. They also tend to produce less heat compared to others.
Another advantage to spiral bevel gears is that the size of the tooth surface is relatively large which is in mesh while they are rotating making this type of gear perfect for high torque and high speeds application.
Like it was mentioned before, spiral bevel gears produce less noise and less vibration making your driving experience smoother and more efficient compared to other bevel gears.
However, although there are many benefits to be gained from installing spiral bevel gears in a vehicle, they will require bigger housing especially in bigger trucks. The good news though is that modern designs make use of spiral bevel in place of hypoid gear because it is more efficient and produces less heat.
Gear manufacturers understand the importance of gears in today’s society that is why they are constantly manufacturing and producing gears that come in all sizes and designs to match different usage. From simple toys to the more complicated ones, for sure you’ll find some form of gears in them and making them work.
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