Common failure evidence
Pitting, scoring, abrasive wear, edge contact, cracking, plastic deformation, overheating, noise and tooth breakage each point toward different combinations of load, lubrication, material, heat treatment and mounting.
System causes
- Incorrect mounting distance or backlash
- Damaged bearings, shafts or housing bores
- Overload, shock load or changed duty
- Insufficient or incorrect lubricant
- Contamination or poor sealing
- Material, hardness or case-depth mismatch
- Mixing unmatched gear and pinion members
Preserve the evidence
Do not discard the mating member, fragments, bearings, shims or lubricant information. Photograph the assembly before dismantling and record orientation and settings.
Frequently asked questions
Can bevel gear failure causes be developed from an existing sample?
A sample can support dimensional study, but the most reliable route also includes the mating member, shaft angle, mounting information, speed, torque, material or hardness information and failure history.
What information is required for quotation?
Provide a dimensioned drawing or sample, quantity, module or diametral pitch, tooth counts, pressure angle, spiral hand where applicable, ratio, material, heat treatment, accuracy requirement and expected duty.
Can one member be replaced without the mating gear or pinion?
It may be possible after inspection, but a matched-pair approach is normally preferred because tooth contact, backlash and mounting are interdependent.
How is delivery time determined?
Delivery depends on geometry, quantity, material availability, tooling, heat treatment, finishing, inspection scope and technical approval.