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Hob quality basics

The quality of a hob directly affects the final quality of the gear it generates. AGMA has developed a standard […]

Predicting Gear Sliding Losses

Gearbox efficiency is becoming increasingly important for vehicle manufacturers to help achieve their overall fuel savings goals. Enhancing gearbox efficiency […]

Selecting a worm gear lubricant

To compete in the marketplace, engineers across all industries are being tasked with increasing gearbox efficiency. Modern designs therefore must […]

Power Skiving with integrated cutter resharpening

Gear manufacturing by Power Skiving takes the traditional approach: After a cutter has reached its maximum wear, the operator changes […]

A new approach for the calculation of worm shaft deflection in worm and crossed helical gear drives

Worm gear drives are characterized by a simple design, which allows the realization of a high gear ratio within one […]

The commonalities and differences between helical ‘low-tooth-count gears’ and ‘multiple-start worms’

The article deals with geometrically-accurate worm gear pairs that feature line contact between tooth flanks of a worm gear and […]

Electrification in the automotive domain

In the modern world, there is no limit to the varieties of vehicles available in the market. From variations in […]

New standardized calculation method of the tooth flank fracture load capacity of bevel and hypoid gears

Bevel and hypoid gears are widespread in automotive, industrial, marine and aeronautical applications for transmitting power between crossed axles. Future […]

Chamfering of cylindrical gears: Innovative new cutting solutions for efficient gear production

Cylindrical gear chamfering and deburring is a rather “unloved” process that adds cost but without delivering readily apparent improvements in […]

Leveraging the complementary strengths of orbitless and planetary drives

An orbitless drive is a novel, fixed-ratio, epicyclic drive that includes a second carrier in place of a ring gear. […]

The benefits of splines

What is a spline? According to the American Heritage Dictionary of the English Language, a spline is defined as: Noun: […]

Bringing forging equipment online to meet expanding production requirements

When forging operations need to expand production to meet increased demand for existing parts or to add new product lines, […]

Rapid and precise manufacturing of special involute gears for prototype testing

Due to the steadily increasing demands on the power density of mechanical transmissions, gears with special geometries are increasingly coming […]

Optimization of rack and pinion for offshore jack-up applications

Liftboats or jack-up oil rigs are essential for the oil and gas industry. The subsystem (rack, pinion, gearbox, and brake) […]

Tooth root testing of steels with high cleanliness

The power density of gearboxes is continuously increased through different research activities. Besides new material developments, steel cleanliness comes to […]

Optimization of asymmetric tooth root generated with protuberance hob

The Direct Gear Design [1] method optimizes various parameters and elements of gear tooth geometry to achieve the required gear-drive […]

Long hob cost savings over the length of a job

Manufacturers consider many factors when shopping for a gear hob solution: What material is being cut? What is the pitch […]

Conjugate Action Law in Intersected-Axes Gear Pairs and in Crossed-Axes Gear Pairs

The article deals with the kinematics and the geometry of geometrically-accurate gearing (with perfect gearing). Considered at the beginning for […]

Gearwheel manufacturing in a 34-second cycle

Minimizing production times to ensure competitiveness is one of the most important challenges in the automotive industry — Henry Ford […]

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