Topics: History of Bevel Gears
The history of bevel gears is old so that you can even see them in the sketches of the all-around genius of the Renaissance period, Leonardo da Vinci (1452-1519). His sketches show items similar to what we call shaft attached bevel gears. But amazingly in other sketches, he shows one identical to what we now call hypoid gears where the axes of the larger and smaller gears are offset. Is it possible that at that time in his head, such topics as “large speed reduction” and “space saving concept” already existed ?
It is not certain when the gears themselves were used, but we can confirm based on Aristotle’s records that they already existed in B.C. in use in water wheels. For bevel gears, even though the forms are different from the present versions, through archeological remains in the Middle East, during B.C., we can confirm the use of wooden gears with shaft angles at 90 degrees.
The modern day bevel gear production history continues from the latter half of 1800’s, and was heavily influenced by the Gleason Company’s technological development. At present, even though Klingelnberg type bevel gears possessing high grade gears are partly still used in Germany, the Gleason type bevel gears as produced by our facility command the majority of the bevel gear market.
Related links :
Bevel Gears – Main page of bevel gears