X4 Tools HOME GEAR PRODUCTS GEAR SERVICES CNC MACHINING ABOUT US CONTACT US Prev Next Home Gear Products External Spur Gears & Splines EXTERNAL SPUR GEARS & SPLINES Geartronics has met our customers’ requirements for external gears and splines in numerous configurations, a wide-range of sizes, and various materials for over 80 years. Our experienced technicians will work with you to meet your requirements for a standard, modified or custom gear tooth profile in single quantities or thousands of parts. External spur gears are used to transmit power and motion between parallel shafts and are, by far, the most common type of gear used in the largest number of applications. The have teeth that are both straight and parallel to the axis of rotation and are usually produced from cylindrical gear blanks. The involute profile of spur gear teeth allows for smooth operation between mating gears and permits greater variations in mounting distances without affecting proper gear action. External splines typically have teeth cut on the outside diameter of a drive shaft parallel to the axis of shaft rotation. The teeth of splines may be of various forms including involute, crowned, parallel, or serrated. Shafts with external splines typically mate with components having internal splines to transmit torque and motion in the same axis. External Spur Gears & Spline Experience Geatronics produces countless configurations of external spur gears and splines in numerous shapes and sizes using a variety of materials and manufacturing processes that include CNC turning, CNC milling, CNC gear hobbing, gear shaping, broaching and finish grinding. We provide gears with hubs, keyways, slots, internal splines, cross holes, threaded holes, and just about any other machined feature required. We’ll ensure that your requirements for heat treating, plating, marking and testing are met. We can also cut gear teeth on blanks that you supply or supply machined gear blanks to you for further processing. We have manufactured internal gears and splines for customers from a number of industries, including: Aerospace Appliance Automotive Consumer Product Defense Food Processing Hand & Power Tools Industrial Equipment Machine Controls Medical Device & Equipment Motion Control Oil & Gas Request For Quote Ask a Technical Question EXTERNAL SPUR GEAR AND SPLINE MATERIALS Geartronics has the capability of producing external spur gears and splines from a wide-range of materials, including: Aluminum Brass Bronze Castings & Forgings Delron Ductile Iron Low Carbon Alloy Steel Low Carbon Steel Medium Carbon Alloy Steel Non-Metallic Nylon Phenolic Plastics Preheat Treated Steel Stainless Steels Tool Steel CONTACT US Geartronics Incorporated 100 Chelmsford Road North Billerica, MA 01862 Call Us: 978.663.6566 Fax: 978.667.3130 Email: gearsales@geartronics.com Copyright © 2020 Geartronics Incorporated. All rights reserved.