Spline Shafts Services

IQS Directory is a top industrial directory listing of leading industrial spline shaft manufacturers and suppliers. Access our comprehensive index to review and source spline shaft manufacturers with preview ads and detailed product descriptions. These spline shaft companies can design, engineer and manufacture spline shaft to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these spline shaft manufacturers and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. Read customer reviews and product specific news articles. We are the right resource for your information requirement whether its for a manufacturer of spline shaft stock, metric spline shafts, small spline shaft.

  • Los Angeles, CA

    Pioneer Broach Company is premier vendor of quality rotary broaching cutting tools. We specialize in custom spline, serration and hexalobular shaped rotary or wobble broaches, and also offer a complete line of standard hex and square rotary broach tools. Our new rotary broaching toolholder is designed for all modern CNC machines, mills and lathes.

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  • Warren, MI

    Apex Broaching Systems is a worldwide supplier of standard broaching machines, special purpose broaching machines, fixturing, automation, and cutting tools. We have over 69 years of innovative engineering, skilled craftmanship, quality manufacturing, assembly, and customer satisfaction. All of our products are made here in the USA. Contact us today and tell us how we can meet your demands!

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  • Warren, MI

    Diamond Broaching Service LLC showcases its value to its customers and the industry through quality customer service. The new team of Engineers and Machinists continue to provide the same high-quality broaching services that our customers have depended on for over 70 years. With over 400 Broaching Tools in our inventory, we can respond quickly to provide the following shapes in just about all components. Call today!

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  • Elk Grove Village, IL

    Since 1981, Universal Broaching has made a name as a dependable broaching job shop that offers quality products, impeccable service & competitive pricing for all broaching needs, no matter the size of the run. We offer horizontal internal broaching, vertical surface broaching, blind hole keyseating, broach sharpening, reconditioning & repair, and engineering & manufacturing of broaches & fixtures.

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Spline Shafts Industry Information

Spline Shafts

Spline shafts are mechanical components that consist of a series of ridges or teeth on a drive shaft. They exist to even out the rotation speed of a companion piece and transfer torque in a number of settings. To effectively transfer torque, spline gears rotate and interlock their grooves with the matching grooves of a mating piece. Spline shafts are found in bicycles, some aircraft engines, crankshafts, and vehicles in general. Typically, these gears are made from materials like brass, cast iron, steel, stainless steel, or aluminum. In addition, some spline shafts are hybrid pieces, featuring plastic as well as metal.

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Notable Types of Spline Shafts

Spline shafts are differentiated from one another in a few different ways, the most significant way being the spacing configurations and sizes of their ridges, or broaching teeth.

Common spline shaft types, based on tooth configuration, include:

  • Parallel Key Splines
  • Serrations
  • Involute Splines
  • Crowned Splines
  • Helical Splines
  • Ball Splines

Parallel key splines have parallel and equally spaced grooves that extend both axially and radially. Serrations also have evenly spaced teeth, but instead of being parallel, they form a "V." They are mainly used with small diameter shafts. Next, the evenly spaced teeth of involute splines interlock perfectly with one another when rotating, leading to enough torque to power a machine or vehicle. Involute splines increase strength with their curves, which decrease stress concentrations. Crowned splines are almost identical to involute splines, with equally spaced grooves, except that they have slightly modified male teeth that facilitate misalignments.

Helical splines have evenly spaced teeth that form a helix around the shaft. They have either parallel or involute sides. These can either minimize stress concentrations or allow for rotary or linear motion between parts. The former situation primarily occurs for stationary joints carrying high loads. Finally, ball splines are a bit different from all the others, as the teeth of their outer section are implemented with a ball bearing. This implementation allows for varied amounts of free linear motion, even when the spline shaft is under high torque.

Manufacturing Process of Spline Shafts

Spline shafts are made using a precision machining method known as broaching, which alters surfaces via metal removal. In particular, spline cutting machines are used during this endeavor. Broaching machines and spline cutting machines use metal tools with rows of successively larger teeth, called broaches, to cut holes or create and deepen ridges in plastic, metal, and wood materials.

The broaching process broaches the subject metal removal from two different angles: linear and rotary. During linear broaching, the broach is run linearly against the surface of the workpiece. During rotary broaching, the broach is instead rotated and pressed into the workpiece. In this instance, the goal is to cut an axisymmetric shape into the workpiece. While linear broaching tends to utilize broaching machines, rotary broaching is more likely to use a screw machine or a lathe. However, both methods are rather efficient, requiring only one pass to perform the cut.

In spline shaft production, blind broaches, also called external broaches, are employed to cut furrows along the length of the spline shaft surface. During blind broaching, shapes and intends are knocked into the workpiece without actually penetrating the metal. This aspect of spline shaft production is difficult to execute well, and it can only be successfully carried out by talented and experienced broachers. In addition to spline shafts, blind broaching is generally only used for the creation and perfection of hexagonal, round, and square-cut imprints, holes, and slots. Though it is a difficult and intricate process, blind broaching is an economical way to work on spline shafts, and it gleans results that are uniform and highly repeatable.

Finding the Right Spline Shaft Manufacturer

Manufacturers must choose the number of teeth the spline shafts will have carefully, as this number, along with the preferred pitch diameter, determine spline gear’s pitch. The right spline shaft is essential to the safe and efficient functioning of vehicles both on land and in the sky. To find out more, contact a reputable manufacturer today. Skilled spline shaft manufacturers, such as those listed on this page, will be able to assist a customer determine the best sizes and shapes of their spline shafts. In addition, they will be able to determine and carry out the most advantageous machining methods for any application, whether it is standard or unique.

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