External Spline Cutting Tools

The number of starts of the hob and the number of teeth in the spline determine the ratio that the hobbing machine is geared to produce.

External spline cutting tools.

Of teeth 2 od. Round to the nearest whole number. However due to sweepout clearances and tight part features shaping methods are also commonly used. Gear pitch no.

Tooth profiles of external splines can be cut by shaping hobbing form milling or power skiving. This method can be used to produce both internal and external splines of parallel involute or serrated type. All external spline forms can be produced with the hobbing method dependant upon the limitations of the machine tool and the individual component design. Also known as involute gear cutters these tools work with a milling machine to create 14 pressure angle spur gears.

Each tool has a different number of flutes to achieve a variety of different cutting diameters depending on the application. To select a gear cutter follow these steps. Splines can be either straight cut or helical cut. All types of external splines can be produced with the hobbing method.

A cylindrical hob with the mating rack form of the spline to be produced is the cutting tool. The hobbing process typically offers the best balance between productivity and flexibility. Spline cutting with an involute spline cutter or straight side spline cutter is the process of machining internal and external splines onto shafts gears and other mechanical power transmission components.