TOPICS CALENDAR BUYER'S GUIDE AGMA

Tip Relief

TECHNICAL ARTICLES | 2023-02-21

Aspects of Gear Noise, Quality, and Manufacturing Technologies for Electromobility

In modern automotive vehicles, gear noise becomes more and more of an issue. The main reason is the reduced masking noise of the engine, which vanishes completely in the case of an electric driveline. Improved gear quality unfortunately does not correlate with a better noise performance in any case. High gear quality makes sure that the gear flanks are inside tight tolerances and that all teeth are nearly identical. Even if the running behavior of such gear sets shows a very low sound pressure level, the noise perception for human ears may be annoying.

GEAR TALK WITH CHUCK | 2019-11-19

Content Request

Have you seen our “help wanted” ad? Gear Technology is look...

INDUSTRY NEWS | 2018-11-15

Beautiful on the Inside

Higher Quality Internal Gears

TECHNICAL ARTICLES | 2017-08-01

FE-Based Approaches for Tip Relief Design

The deformation of the gear teeth due to load conditions may cause premature tooth meshing. This irregular tooth contact causes increased stress on the tooth flank. These adverse effects can be avoided by using defined flank modifications, designed by means of FE-based tooth contact analysis.

INDUSTRY NEWS | 2016-07-20

Covering All Angles

Klingelnberg Hosts 6^th WZL Gear Conference in the USA 2016 Matthew Jaster, Senior Editor ...

TECHNICAL ARTICLES | 2015-06-01

Optimal Modifications on Helical Gears for Good Load Distribution and Minimal Wear

Helical gear teeth are affected by cratering wear — particularly in the regions of low oil film thicknesses, high flank pressures and high sliding speeds. The greatest wear occurs on the pinion — in the area of negative specific sliding. Here the tooth tip radius of the driven gear makes contact with the flank of the driving gear with maximum sliding speed and pressure.

TECHNICAL ARTICLES | 2012-01-01

Evaluation of Methods for Calculating Effects of Tip Relief on Transmission Error, Noise and Stress in Loaded Spur Gears

The connection between transmission error, noise and vibration during operation has long been established. Calculation methods have been developed to describe the influence so that it is possible to evaluate the relative effect of applying a specific modification at the design stage. These calculations enable the designer to minimize the excitation from the gear pair engagement at a specific load. This paper explains the theory behind transmission error and the reasoning behind the method of applying the modifications through mapping surface profiles and determining load sharing.

TECHNICAL ARTICLES | 2006-03-01

Proposal for Tip Relief Modification to Reduce Noise and Sensitivity to Meshing Conditions in Spur Gears

In this article, a new tip relief profile modification for spur gears is presented. The topography proposed here is a classical linear profile modification with a parabolic fillet.

FEATURE ARTICLES | 2005-01-01

Tooth Flank Corrections of Wide Face Width Helical Gears that Account for Shaft Deflections

This paper discusses the influence of tip relief, root relief, load modification, end relief and their combinations on gear stresses and transmission errors due to shaft deflections.

ADDENDUM | 2001-05-01

Gear Fashion

Combining involute curves and body curves, merging factory and fashion, Winzeler Gear has transformed one of its products into gear haute couture. Winzeler Gear has created a plastic gear dress.

TECHNICAL ARTICLES | 1994-05-01

Designing Hardened & Ground Spur Gears to Operate With Minimum Noise

When designing hardened and ground spur gears to operate with minimum noise, what are the parameters to be considered? should tip and/or root relief be applied to both wheel and pinion or only to one member? When pinions are enlarged and he wheel reduced, should tip relief be applied? What are the effects on strength, wear and noise? For given ratios with enlarged pinions and reduced wheels, how can the gear set sized be checked or adjusted to ensure that the best combination has been achieved?

INDUSTRY NEWS | 1993-07-01

Gear Tip Chamfer and Gear Noise; Surface Measurement of Spiral Bevel Gear Teeth

Could the tip chamfer that manufacturing people usually use on the tips of gear teeth be the cause of vibration in the gear set? The set in question is spur, of 2.25 DP, with 20 degrees pressure angle. The pinion has 14 teeth and the mating gear, 63 teeth. The pinion turns at 535 rpm maximum. Could a chamfer a little over 1/64" cause a vibration problem?