Gear blog
Severe scuffing and cold flow
DOCUMENT PDF: DOWNLOAD Tooth Wear Modes Scuffing • rough torn furrows in the direction of sliding • adhesion is due to micro-welding and tearing of asperities under high loads. • affects…
Gear Failure Analysis – Macropitting
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Meshing old with new gears
Meshing brand new gears with worn and used ones is not recommended. Of course everything depends on the application, load being carried and the amount of wear already sustained by the given…
Major diameter fit vs. side fit splines
Major diameter fit spline is suitable for applications where axes alignment between two parts (internal and external spline) is a critical design parameter. There are certain manufacturing…
Bevel gear set bearing loads
When calculating the bevel gear set bearing loads use the pitch diameter calculated at the center of the face width of the pinion (gear) (calculated at mean cone distance), not the standard…
Recess and approach action in gears
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Tooth wear nomenclature
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Analytical gear inspection symbols and interpretation of charts for spur and helical gears
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Involute function and pin measurement calculations
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Radius of curvature-definition
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Gear rolling and sliding velocity
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Highest and Lowest Single Tooth Contact Points
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Involute tooth form formula derivation
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Pictures of Gear Tooth Failure Modes
DOCUMENT PDF: DOWNLOAD This document describes common types of gear tooth failure modes and their appearance. Gear tooth failure modes and wear can be categorized as “mild”, “moderate’ or…