bevel gear
pinion and crown wheel
pinion and ring gear

The SS4 system was also further refined, as bevel gears were replaced with planetary ones.

Each axle was driven by a separate bevel gear, with no side rods.

Shaft-driven bikes have a large bevel gear where a conventional bike would have its chain ring.

This meshes with another bevel gear mounted on the drive shaft.

They can also be meshed with the newer double bevel gears.

The engine featured double overhead camshafts, driven by a vertical shaft through bevel gears.

It was restored in 1976, when the bevel gears had to be replaced, but all other machinery and the external turbine are intact.

Each bank had a single overhead camshaft, shaft-driven through bevel gears.

It had an m56 with an added bevel gear (transfer case) which created the m58 transmission.

These turbines added power to the engine crankshaft through bevel gears and fluid couplings.