St Croix Gear and Machine
GEAR products
“Their attention to detail is excellent whether the job is fast turnaround or long term drop shipment.” – Valued Customer
Croix Gear and Machining

Hobbing | Bevel Gears | Shaping | Broaching


Straight  |  Spiral  |  Zerol  |  Hypoid

spiral BEVEL

Spiral bevel gears have their teeth formed along spiral lines. They are somewhat analogous to cylindrical type helical gears in that the teeth are angled; however with spiral gears the teeth are also curved.

The advantage of the spiral tooth over the straight tooth is that they engage more gradually. The contact between the teeth starts at one end of the gear and then spreads across the whole tooth. This results in a less abrupt transfer of force when a new pair of teeth come in to play.