Evolvent Design
Gear and Transmission
Design and Manufacture
ISO9001:2015 Certified
Gear Milling, Hobbing, Shaping, 3D Printing
Gear milling, hobbing, generating and shaping.
Manual and CNC equipment to deliver gearboxes, shafts, couplers and complete mechanisms.
Gear Manufacturing & Inspection
Milling, Hobbing and other processes
We use the hobbing, milling, generating and 3D Printing processes for commercial quality gears found in machine tools and power transmission, up to higher quality gears for advanced applications. Gear types include Spur, Helical, Worm, Wormwheel, Ratchet, Sprocket, Spline and Non-Involute Forms.
Inspection
Measurement over Pins (MOP) or Measurement over Wires(MOW) methods, Dual Flank testing with Vari-Roll, Span, and other methods.
AGMA Quality Standards
Tolerances can be measured in our Microgear system and deliver reports. We use NIST calibrated measuring instruments and maintain our membership with AGMA giving us access to the latest industry standards and gear technology.
Quality Shop
We maintain an ISO-9001:2015 certificate
Gear School
Design and Manufacture in Your Shop
We practice the Gear Art here. We have a unique set of both design skills and a shop floor of gear machines not commonly found together. If you want to speed up your gear knowledge this is the place to come. Compared to most mechanisms, gears pose a large learning curve. Get there faster.
Calculators
We've shared our in-house tools to help you design, inspect, and make your own gears. From our gear calculators to 3D gear generators these tools will make gear production easier and more understandable. Change Gear Calculator and other indexing machine setup tools and services.
Short Courses
Gears for Makers, a comprehensive one-day course to cover the history, math, and techniques to get you making gears in your own shop. The course is located in our Ventura California shop where we will split our time between design, calculating and measuring, and half our time to machining hobbing or shaping gears.
Over the years we have helped many companies. Come and learn how to give your product motion. College Baja teams, startups, mature companies developing new products, the curious ones, mature companies getting their supply chain fixed, the reverse engineering of parts to keep old equipment running and the list goes on.
2024 Schedule January 6, 2024 Grinding Gear Cutting Tools March 15, 2024 Worms and Wormgears BASH - TBDOctober 12 – Gearbox Essentials
Change Gears
for
Machine Tools
Change Gears for Machine Tools
Simplify the process of determining change gears for any machine tool. The problem involves matching change gears to equal a calculated machine ratio. The change gears transmit a specific gear ratio between an input shaft and an output shaft. Standard and reverted gearboxes use 2, 4, 6, 8, etc. to do this. You can find the most common solutions for 4-gear double reduction gearboxes here. Find change gears for other machine tools. Pfauter, Niles, Lorenz, Maag, Jones & Lamson, Barber Coleman, Stanko, Mikron, Fellows, Almhults Bruk AB, Adams, Brown & Sharpe, and many others. Enter your available change gear assortment and desired ratio into GearCalculators.com . The output is a set of change gears that will deliver your desired ratio.
For proper gear lubrication and crossover for older oils this is the place.