SKF-RCFA Report No

RCFA Report No.： SKF Bearing Failure Analysis Checklist SKF轴承失效分析检查表 IR=Inner Ring OR= Out Ring RE= Rolling Element C= Cage GR= Guide Ring L= Lubricant IR=内圈 OR=外圈 RE= 滚动体 C=保持架 GR= 引导圈 L=润滑 Observations/ Remarks 观察/备注 Bearing Component 轴承元件 Observed Damage 目测失效情况 Recommend Checking 建议检测的部位 IR OR RE C GR L Fretted/Scored bore 蠕动腐蚀/内圈有划伤 Shaft OD size to specification 检查轴的外径及其公差 Fretted/Scored OD 蠕动腐蚀/外圈有划伤 Housing bore to specification 检查轴承座的内孔及其公差 Cracked ring 内/外圈开裂 Shaft & housing fit /Drive-up 轴颈和轴承座配合/轴向是否过度推进 Turned in operation 旋转轴承受阻 Shaft & housing for size 检查轴颈和轴承座的相关尺寸 360° load zone 360°承载痕迹 Normal/ Shaft & housing fits/ Unbalance/ Internal clearance 正常/轴颈和轴承座的配合/ 不平衡/ 轴承内部游隙 Load zones at 120°apart 负载集中在120°范围 Shaft /Housing out of round 轴颈和轴承座内孔不圆 Diagonal load zone 承载痕迹歪斜 Misalignment 不对中 Wear pattern offset to one side 磨损痕迹单侧 Excessive thrust load /Alignment 过多的轴向推力/ 不对中 Glazed & frosted 光亮或磨砂痕迹 Lube viscosity / Amount of lube Frequency of re-lubrication 润滑油黏度/量/润滑频率 Fragment dented/Abrasive wear 碎片凹痕/颗粒磨损 Effectiveness of housing seals 检查密封是否有效 Spalled 有剥落 Overload/impact/vibration/lube 过载，冲击负荷，振动，润滑 Heat discolored component 变色 Lube type / Amount or internal clearance, thrust loads 润滑形式/量或内部游隙，推力负荷 Cage surface wear 保持架表面磨损 Lubricant viscosity / Amount / Contamination 润滑脂/油粘度/数量/污染 Roller end/ Flange wear 滚动体端面/凸缘磨损 Heavy thrust load/Lubricant viscosity amount 过度轴向推力/润滑 IR=Inner Ring OR= Out Ring RE= Rolling Element C= Cage GR= Guide Ring L= Lubricant IR=内圈 OR=外圈 RE= 滚动体 C=保持架 GR= 引导圈 L=润滑 Observations/ Remarks 观察/备注 Bearing Component 轴承元件 Observed Damage 目测失效情况 Recommend Checking 建议检测的部位 IR OR RE C GR L Smokey gray/Lube 灰色表面/润滑剂 Abrasive material in lubricant 检查润滑脂（油）是否油杂物 Edge load 边缘承载 Alignment of installation/Shaft/ Housing taper 安装不对中/轴颈/轴承座的内孔是否有锥度 Brinell marks 敲击痕迹 Mounting procedures (excessive force) on wrong ring/ Impact 安装程序/冲击 Electric fluting/ Pitting 电流腐蚀 Welding line ground—excessive Voltage leakage 焊接接地-过多的电压放电 False brinell marks 等间距压痕 Vibration while not running 静止状态下设备受到振动 Corrosion/Etching/Pitting 腐蚀/着色/蚀损斑 Moisture in lubricant 润滑剂受潮 Foreign matter 杂质 Seal effectiveness 密封是否有效 Static corrosion 静态锈蚀 Storage procedure / Moisture in bearing 储存运转周期/润滑剂受潮 Washboard wear pattern 搓板磨损痕迹 Contamination/Sealing 污染/密封 Component heat discolored 变色 Lubrication of internal clearance 轴承游隙变化 Irregular load zones 不规则的负载痕迹 Housing / Shaft out of round—thrust 轴承座内孔/轴颈不圆 Conclusion / 结论: _________________________________________________________________________________________________________ Recommendation / 建 议: ___________________________________________________________________________________________________ 2