What are Helical In-line Gearboxes?

December 2, 2016

Helical in-line gearboxes leverage the hybrid properties of angularly cut gearing teeth. In effect, power transmission errors are eliminated because the architecture of the engaging teeth inside the gearbox blends linear contact with a carefully implemented angular property. But one key cog and its impressive operational characteristics does not equal a full definition, so what exactly are these in-line units built for, pray tell?

An Introduction to Helical In-line Gearboxes

Direct gearing products pass radial power down a shared drive shaft, so no parallel operations are necessitated. Certainly, a supplementary motor, servo adapter, or a set of planetary gears can be added internally or via a flange fitting to the gearbox, but that's not the point of this exercise. Let's strip away those supplementary components, for we're screwing down this article's metaphorical magnifying glass so that we can see how helical gears quietly but efficiently transfer torque in the most challenging conditions.

Angular Inline Benefits

The modular housing of a top-notch gearing package is practically saturated with an incorporated reliability factor because high-grade helical gears form the core of the mechanism. The gains are immediately perceptible. Power losses drain away, and it's the smooth meshing angled teeth that make this feature possible. Backlash events are unlikely, as are the shock load events that plague standard gearing products. Again, this is a key power transmission component, a moving link that's installed directly within an efficient power transmitting chain, so dependability counts above all else.

The Clockmaker, Blacksmith, and Engineer

As a subheading, those three disciplines may sound melodramatic, but there's truth in the words. Modular helical in-line gearboxes take their cue from the intricate craftsmen who build tiny cogs and near microscopic pinions. Then, the engineer and the blacksmith heat treat and carburize the angling teeth to inject this precision-imbued gearing model with robust mechanical properties. Able to rotate fluently and quietly, the mating wheels then drive heavy loads with obstinate ease, all while handling loading effects and thrust transference incidents.

Designed for Difficult Loading Conditions, the angular geometry of the helical gear train finds its way into every industry and commercial facility. Indeed, the applications for this load-savvy gearing unit are growing every day as manufacturers look for robust gearboxes that can work night and day while absorbing brutal power spikes. The crushers and conveyors that populate mines and quarries adopt this power transmission profile, as do the heavily loaded production lines that process large volumes of weighty commodities.

Kelmar Engineering

95 Wayo St, Goulburn, NSW 2580

Phone: (02) 4823 9931


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