Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Converts rotation into eccentric motion of the moving jaw and transmits crushing loads.
Eccentric Shafts (Eccentric Shaft)— Jaw Crushers Wear part, position 14.
| Installation Position | Passes through the top of the moving jaw, position 22 in the layout, and connects to the bearings, flywheel and belt pulley. |
| Main Function | Converts rotation into eccentric motion of the moving jaw and transmits crushing loads. |
| Replacement Frequency | Low replacement frequency; stop and assess if cracks, journal wear, bending, loose fits or abnormal vibration are detected. |
| Item | Details |
|---|---|
| Material Options | Forged, quenched and tempered alloy steel such as 42CrMo or AISI 4140/4340, as specified in the OEM drawing |
| Typical Properties and Acceptance Criteria | A fatigue-critical part with serious consequences if it fails. Beyond tensile and yield strength, control the forging reduction ratio, grain size, quench and temper uniformity, low- and room-temperature impact toughness, ultrasonic and magnetic particle inspection, journal surface finish, fillets and coaxiality. Local surface hardening requires assessment of residual stresses and core toughness. |
| Principal Failure Mechanism | Abrasion, fatigue, corrosion or assembly damage; use photographs of failed parts from the site to identify the dominant mechanism |
Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.
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