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A Basic Understanding of Gear Manufacturing Processes

February 13, 2019

Gears have been around since the advent of human history but we still use this highly functional invention even in the modern-day. The gear manufacturing industry has evolved in response to technological innovation and social change – with new revelations of efficacy and efficiency with regards to the way differing aspects of gears are developed. From transforming gear hobbing for external and internal splines, to understanding the differences between external versus internal spur gears, understanding the processes involved within gear manufacturing may appear to be overwhelming.


In response to the highly functional nature in the gear-making process, the industry of gear manufacturing is a highly specialized field. Gears are required to adhere to a number of specifications depending on required utility and are generally manufactured for purposes pertinent to the transmission of power prevalent in a range of global industries including the automotive, paper, cement, sugar, steel, and industrial machinery economic sectors.  


Operational requirements for gears are dependent based on industry but in general gears must offer:


·         Powerful construction

·         Operationally dependability

·         Run efficiently and effectively

·         Maintain longevity in the duration of its expected lifetime



Aspects of the gear in question must conform to the requirements of the industry while offering the above mentioned general operational specifications.



Determining Materials Used in the Gear Manufacturing Process


Determining the materials used in the gear manufacturing process is dependent on what is required of the gear in question. In general, there are a number of materials used in manufacturing a gear including a large range of cast irons, and non-ferrous materials. Factors include:


·         Specifying service class

·         Peripheral speed

·         Level of accuracy

·         Manufacturing approach

·         Necessary dimensions and overall weight in driving power

·         Allowable duress

·         Resistance to shock

·         Resistance to wear and tear



Gear Machining Versus Gear Forming


Gear manufacturing is divided into two sub-sections: gear forming and gear machining. Gear forming involves manufacturing methods of shaping the actual gear such as the processes required to manufacture external and internal spur gears, or the gear hobbing process which configures external and internal splines. In contrast, gear machining involves finishing processes. Both categories can be further divided by processes involved within each:




Opt for a Trusted and Reputable Gear Manufacturer


As iterated above, the gear manufacturing industry is highly specialized to independent specifications required by gear utility based on industry application. The gear manufacturing process is intricate – but a basic understanding summarizes the manufacturing process into two categories: gear machining and gear forming. Within each category different procedures and methods are involved in the final gear product – whether that be a spur gear, a beveled gear, a crowned gear requiring external or internal splines etc. Regardless, opting for a trusted and reputable gear manufacturer will ensure high-quality gear products that adhere to both the general expectations in assessing the functionality of the gear, and relevant industry requirements by application.


True Gear and Spline Ltd. offer years of experience in manufacturing high-quality gear products for clients across Canada. Offering a complete selection of splined shafts, external and internal gears, and internal splines – True Gear has become a reputable name within the gear manufacturing industry due to meeting unique consumer demands with high-quality