采购字段 采购前需要确认的关键规格 材质/可选材料 Forged steel or alloy steel, machined and heat-treated according to drawing and load. 适配主机 Jaw crusherCrusher drive mechanism 询价必须提供 Crusher model and bearing arrangementShaft drawing or old shaft photosBearing-position diameter, length and key dimensionsWorking hours, load condition and failure description 常见磨损原因 Bearing seizure or poor lubricationOverload, tramp iron or long-term eccentric impactMisalignment and worn bearing seat 是否支持定制 Yes. Eccentric shafts require drawing or accurate measurements before quotation.