Demystifying Ball Spline Specs
Place a recirculating-ball bushing on a shaft and what do you get?
Frictionless movementof the shaft.But, create grooves along the axial
length of the shaft that correspond to the radius of the bushing’sball
elements and you’ve got frictionless linear movement coupled with two
importantcharacteristics – those being anti-rotation torque transfer
and higher load capabilities.Now… that’s a ball spline. It combines a
linear bushing (nut) that can now handle greatermoment loads and, a
shaft, which, unlike a rail, can be rotated when needed. It is perfect
forhigh-speed motion and high-speed rotation.