{"id":2280,"date":"2026-06-23T07:09:47","date_gmt":"2026-06-23T07:09:47","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2280"},"modified":"2026-06-23T07:09:47","modified_gmt":"2026-06-23T07:09:47","slug":"helical-gear-failure-analysis","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/et\/helical-gear-failure-analysis\/","title":{"rendered":"Spiraalhammasratta rikete anal\u00fc\u00fcs \u2014 s\u00fcvendite, kriimustuste, hammasmurdude ja kulumise tuvastamine"},"content":{"rendered":"
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Helical Gear Failure Analysis \u2014 Pitting, Scuffing, Tooth Fracture and Wear<\/h1>\n

Iga spiraalne k\u00e4ik<\/strong> failure leaves physical evidence in the tooth surface texture, fracture pattern, and wear location. Reading this evidence correctly identifies the root cause \u2014 whether lubrication breakdown, overload, material defect, or misalignment \u2014 and determines whether the replacement gear requires a different specification, a lubrication change, or a machine alignment correction.<\/p>\n

Submit a Failed Gear for Analysis \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Why Failure Analysis Matters Before Ordering a Replacement<\/h2>\n

Installing a replacement spiraalne k\u00e4ik<\/strong> into a gearbox that failed without first diagnosing why it failed almost guarantees a repeat failure at the same or shorter service interval. The replacement gear is identical to the original \u2014 if the original failed at 18 months due to gear oil contamination with water, the replacement will also fail at 18 months. If the original failed due to insufficient face width (\u03b5_\u03b2 < 1) causing edge loading, a like-for-like replacement will fail identically. Correct failure analysis identifies whether the replacement gear needs a different specification, whether the lubrication must be changed, whether a seal must be repaired, or whether a machine alignment issue must be corrected before the new gear is installed.<\/p>\n

Korea Ever-Power offers a failure analysis service alongside its reverse engineering capability: send the failed spiraalne l\u00f5igatud hammasratas<\/strong> for visual and metallographic examination, and receive a failure mode report with root cause and specification recommendation before a replacement is ordered. Browse the spiraalk\u00e4igukasti tootevalik<\/a> for replacement specifications.<\/p>\n

Pitting \u2014 Surface Contact Fatigue, the Most Common Helical Gear Failure<\/h2>\n

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K\u00f5va hamba k\u00fclg karastatud spiraalne k\u00e4ik<\/strong> \u2014 the HRC 58\u201362 surface resists pitting when lubrication film is adequate. Pitting initiates at the pitch line where the EHL film is thinnest and sliding velocity is lowest, typically appearing as small hemispherical craters 0.1\u20131.0 mm diameter in early stages<\/p>\n

Pitting: Visual Characteristics and Location<\/h3>\n

Pitting is surface fatigue \u2014 tiny cracks initiate at or just below the tooth flank surface and propagate under cyclic Hertzian contact stress until a small fragment detaches, leaving a roughly hemispherical crater (the “pit”). Pitting in a spiraalne k\u00e4ik<\/strong> has three distinctive location and appearance characteristics:<\/p>\n