perma Lubrication systems for Conveyors

Conveyor pulley bearing configurations can vary considerably and as such lubrication programs must be designed to take the specific requirements of different bearing and seal combinations into account. Overall, for typical spherical roller bearings with labyrinth or taconite seals, the lubrication strategy must address two requirements:

1) The re-lubrication of the bearing rolling elements to prevent lubricant starvation and;

2) The regular purging of seals to prevent the entry of contaminants.

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Challenges

For industries that involve the handling of crushed bulk materials such as the quarrying, cement and mining industries, the key challenges associated with conveyor pulley bearing lubrication are worker safety and contamination prevention.

Accessing the lubrication points on large conveyors can involve extensive stair climbing, access ladder ascents / descents to gravity take-up pulleys and steep gradient walkways. Product spillage and potential trip hazards such as water hoses can add to the chance of injury due to trips or falls. Depending on the design of safety guards, conveyors can also present potential pinch points.

Contamination of bearings by solid particles (dirt / ore / dust) and water, via poorly lubricated shaft seals, is the leading cause of conveyor pulley bearing failures.

Dirt and water must not enter the lubrication points

No unnecessary equipment downtimes due to relubrication

Workplace safety must be ensured

Lubrication points

Pillow block housings with spherical roller bearings are mainly used for drive and bend pulleys.

Bearings and bearing housing seals must be permanently supplied with lubricant.

Solutions

Mount a perma lubrication system at the lubrication point. Depending on the conditions prevailing at the lubrication point, the perma lubrication system can either be mounted directly or remotely.

Direct mounting on the lubrication point: e.g. perma CLASSIC

Easy, quick mounting
For lubrication points with little vibration / shocks
For easy-to-reach, safe lubrication points

Remote mounting to the lubrication point: e.g. perma STAR VARIO

For lubrication points with strong vibration / shocks (isolation of lubrication system)
For lubrication points which are unsafe to access: Mounting in safe areas
For hard-to-reach lubrication points