Click image to view full size image
Forged 338 Titanium Stepped Hollow Shaft
The spline shaft is a kind of mechanical transmission, which transmits mechanical torque. There is a longitudinal keyway on the outer surface of the shaft, and the rotating member sleeved on the shaft also has a corresponding keyway, which can keep rotating synchronously with the shaft. While rotating, some can also slide longitudinally on the shaft, such as gearbox shifting gears.
link:https://www.chinatopti.com/titanium-tube/forged-titanium-stepped-hollow-shaft/forged-338-titanium-stepped-hollow-shaft.html
Forged 338 Titanium Stepped Hollow Shaft