Mining and Heavy Industry - H-T-L USA

1 2 3 4 STEP 1: Page 12-19 ASSESS APPLICATION / EQUIPMENT STEP 3: Page 22-25 SELECT SYSTEM / LUBRICANT STEP 2: Page 20-21 ASSESS INSTALLATION METHOD STEP 4: Page 26-33 SELECT MOUNTING TYPE / KIT Challenges Lubrication assessment criteria Solutions © 2019 - H-T-L perma USA LP | www.permausa.com | 15  Historical lubrication practices  Requirements for safe access  Desired service schedule  Location of lubrication points on bearing housings Lubrication challenges associated with electric motor maintenance include:  High speed and high mechanical working of the grease requires more frequent and controlled grease replenishment /exchange  Insufficient grease exchange intervals may result in lubrication deterioration or more extreme ‘starvation’ conditions  Large or excess grease addition volumes result in grease ‘churning’ and overheating  Hazardous working conditions (rotating equipment pinch points, falling from access ladders or platforms, falling debris and high levels of airborne dust)  Maintenance staff may have limited understanding of motor lubrication requirements Maintenance challenges which restrict or limit effective relubrication may result in:  Inadequate / excessive lubrication causing deteriorating lubrication conditions, accelerated grease ageing, oxidation and wear rates  Contamination of bearings (from inadequate lubrication) causing rapid deterioration of lubrication conditions  Accelerated wear rates (caused by contaminants or indadequate / excessive grease replenishment) and finally premature bearing failure For electric motor lubrication, the following factors are generally assessed in order to develop the lubrication solution:  Motor manufacturer’s recommendations  Motor speed  Grease trap / escape port design, access and condition  Bearing types Industry: Mining Application: Electric motor bearings Lubrication system: perma STAR VARIO Installation solution: Remote beam clamp mount Industry: Mining Application: Electric motor bearings Lubrication system: perma STAR VARIO Installation solution: Direct mount