Company History - from an old photographic album(No.13)
From 1950 to 1960, the main line of Kohara Gear's business was 1) manufacturing KHK stock gears and 2) undertaking the gear-cutting of the large-sized main gear for power presses and shearing machines.
* Click on the photos for enlargement
The founder operating a face lathe.
Kohara Gear succeeded in producing a large-sized gear. (Its diameter more than two meters)
The main gear for the power press.
The founder operating a hobbing machine.
The gear-cutting of a large-sized gear
with the shaper.
The finished product of a large-sized
bevel gear.
The hobbing machine developed
in-house (right).
Four workers in charge of the development.
One unit of the hobbing machine just completed.
Giving the new machine a test run.
(Obtained good results)
The gear-cutting of an
approx. 4 meter-sized gear.
A large-sized hobbing machine.
It took several days around the clock to finish the gear-cutting.
Installing a large-sized hobbing machine.
A heavy-duty hobbing machine.
Gear-cutting of main gears
for the power press.
Medium-sized hobbing machine unit.
Oerlikon-type straight bevel gear
cutting machine
Gear-cutting of the bevel gear.
Gear-cutting of the large-sized worm.
Gear-cutting of Sunderland type
double helical gear.
