What Is The Difference Between Splines and Gears?

Splines and Gears are very similar in their look and application. Both Splines and Gears are used to transmit torque from one shaft to other meshing components. Both have a teeth structure on their periphery. Yet these two parts cannot be used interchangeably, so how are they different and what are their applications?


bronte precision gear manufactureWhat is a Gear?


A gear is a rotating machine part which has cut teeth which will mesh with another toothed part in order to transmit torque. They are used to change the speed, direction and torque of a power source and are one of the most widely used components across all industries. There are no standards shapes/sizes when it comes to Gears due to the sheer amount of applications but some common categories include; Spur,Worm,Helical,Bevel and Crown Gears.



bronte precision splineWhat is a Spline?


Splines are ridges or teeth on a drive shaft that will mesh with grooves in a mating piece to transfer torque to it, whilst maintaining the angular correspondence between them. Splines are a stronger variation on the keyway and often used to locate a pulley or gear onto an axle.



How are they different?


The major difference between the two is how they transfer torque. A spline uses all of its grooves simultaneously in order to transfer power whereas a gear only uses one tooth at a time, and is designed to mesh with another gear to transmit motion radially from one member to another.


As Splined Shafts use all their teeth they have less fatigue life when transmitting the same amount of power as a gear, but are certainly less versatile in their application.


What We Offer


Bronte Precision can produce both Splined Shafts and Gears for a number of applications. We can manufacture Internal, External, ANSI and DIN shafts. We also produce Internal and External Spur and Helical Gears, Double Helical Gears as well as drive shafts and pinions. Get in touch today to see if Bronte can help you with your splining enquiry.