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Enclosed Gearing

The Benefits of Asymmetric Gears

Gear wheels often rotate in only one  direction throughout their entire service lives. This applies particularly in the case of […]

An Experimental Evaluation of the Procedures of the ISO/TR 15144 Technical Report for the Prediction of Micropitting

Recently, ISO 15144 [1] has been approved by ISO as a technical report that presents an analysis procedure, which is […]

An Improved Load-Equalizing Means For a Multi-Flow Gear Train

This paper relates to the load-equalizing capabilities of planetary gearboxes, and more generally, addresses the load-equalizing capabilities of multi-flow gear […]

Gear Tooth Root Stresses of a Very Heavily Loaded Gear Pair

For aerospace applications, there is a high premium on minimizing the mass of all components while meeting operational and safety […]

Optimizing Innovation in Driveline Design Processes

In the driveline industry, innovation can only be achieved when the use of new or novel technologies or methods are […]

Precision Bevel Gears with Low Tooth Count

Right-angle bevel gears are a particular case of intersected-axis gearing (further Ia-gearing) with an arbitrary value of the shaft angle. […]

Influence of Central Members Radial Support Stiffness on Load Sharing Characteristics of Compound Planetary Gearsets

Abstract In this study, a non-linear dynamics model of Ravigneaux compound planetary gearsets which adopts the intermediate floating component is […]

The Efficiency of a Simple Spur Gearbox — Thermally Coupled Lubrication Model

Introduction The efficiency of drivetrain components is quickly becoming a significant research area pushed by the intensifying quest for improved […]

Optimization of Gear Tooth Contact by Helix Angle Modification

Introduction Gears that are smaller, cheaper, and equipped with more efficient power transmission are the ongoing objective of gear designers. […]

Upgrading and Testing a 72,000 H.P. Gearbox

Another Day at the Gear Hospital Over the past 40 years, we have had many gearboxes come to our door […]

Dynamic Simulations of Radial Lip Seals Followability in an Industrial Gearbox

Industrial gear units are widely used in power transmission systems. They are composed of shafts, gears, rolling elements bearings and […]

How to Minimize Downtime, Repair Costs, and Inventories by Extending the Life Expectancy of Your Gearbox

Just like typical cars, gearboxes have gotten smaller over time. The catch phrase is ‘power-dense’, meaning that from equal sized […]

Horror Stories of Costing

My pet peeve is seeing companies lose money needlessly in the process of costing and pricing. This happens for four […]

The Real Truth Behind Cpk and Ppk Capability and Potential Process Studies

The most common definition of Cpk and Ppk is this: Cpk is the short-term capability of a process, and Ppk […]

The Real Truth Behind Cpk and Ppk Capability and Potential Process Studies

These are very good questions. This paper will describe what you really need to know about estimating the true potential […]

The Surgeon and the Gear Maker

Delta Gear bought TIFCO Gage & Gear, a maker of master gears, spline gages, aerospace gears, and automotive prototype gears […]

Calculating Inverse of Involute Angle in Microsoft Excel Without Programming

A lot has been written and discussed about how to calculate the inverse of involute angle in technological magazines and […]

Epicyclic Load Sharing Map-Application As a Design Tool

One of the main advantages of planetary transmissions is that the input torque is split into a number of parallel […]

An Algorithm for Robust Gear Modifications Design

The design of gear modifications is one of the key tasks for high performance gears, where high performance may be […]

Applications for Self-Locking Gears

In most gear drives, when driving torque is suddenly reduced as a result of power off, torsional vibration, power outage, […]

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