Straight Bevel Gear Vs Spiral Bevel Gear

Straight Bevel Gear Vs Spiral Bevel Gear

Straight Bevel Gear at Rs 500 /unit | स्ट्रैट बेवल ...Spiral bevel gear - Wikipedia

Straight Bevel GearSpiral Bevel Gear
Teeth of this type of gear are straight and are cut along the axis on a cone.Here the teeth are spiral and are cut in the form of spiral curve on the pitch cone.
Two teeth of the mating gears come in sudden contact. The contact is always a line of length equals to face width of teeth.Teeth of two mating gears gradually come in contact. Engagement starts with a point and gradually becomes a line.
Due to sudden contact, teeth are also subjected to impact or shock loading.Here teeth are subjected to gradual loading.
Sudden contact also causes noise.Its operation is quite.
Shock loading induces vibration and thus its operation is not smooth.Due to gradual building up of load, it produces less vibration and thus the operation is smooth.
Designing and manufacturing of straight teeth bevel gear are easier and thus these are cheaper.Complicated design and manufacturing leads to higher cost for this type of gear.
It exerts less thrust force on the bearings that hold the shafts.It exerts more thrust force on bearings.

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