Paper Machine Lubrication Systems

SKU: C-760Duration: 14 Minutes

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Course Details


Training Time: 14 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English, Portuguese

The main function of lubricants is to keep moving metal surfaces separate in order to reduce friction. On paper and board machines, lubricants are used to reduce friction, wear, and heat in bearings, gears, and drive couplings. Common lubrication points include roll bearings, dryer gears, drive gearboxes and couplings, pump bearings, fan and blower bearings, and agitator bearings. This course describes the main functions of lubricants, safety hazards and safety guidelines for lubrication systems, advantages of grease lubricants, components of and flows in circulating lube oil systems, and the importance of lube oil conditioning and monitoring.

Learning Objectives

  • Describe the functions of lubricants on paper and board machines
  • List the safety hazards and safety guidelines associated with lubrication systems
  • Describe sliding, rolling, and fluid friction
  • List the advantages of grease lubricants
  • Identify and describe the main components and flows of a circulating lube oil system, like those used on paper and board machines

Key Questions

The following key questions are answered in this module:

What advantages do grease lubricants have over lubricating oils?
Grease lubricants offer some advantages over oils: they adhere better to metal surfaces, do not easily leak out, protect against corrosion, and provide some sealing action

Are there any disadvantages to using a grease lubricant instead of a lubricating oil?
Greases do not remove heat or debris away from equipment, like the lube oil in a circulating lube oil system can.

What kinds of chemical additives are used in lubricating oils?
Lube oils can contain preservatives and performance-enhancing additives, such as viscosity modifiers, corrosion inhibitors, detergents, and extreme pressure additives, to name a few

What can be determined by the lab analysis of lube oil?
A typical analysis will determine the dirt content, water content, wear metals present, and level of oxidation of lube oil

How can the lube oil flows to a paper or board machine be monitored?
Optical devices like sight glasses and rotameters require regular observation by operations to confirm flows, while digital flow meters can send the flow information to computer control systems

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

The two most common types of lubricants are oils and greases. Oils can be mineral oil-based or synthetics. They are classified by their viscosity or how easily they flow, and the selected oil must be matched to the equipment being lubricated. Thicker or higher viscosity oils are used to lubricate slower speed or more heavily loaded applications. While thinner, lower viscosity oils are used to lubricate higher speed, more lightly loaded applications. For example, on a paper or board machine, the oil used in a circulatory lube oil system that supplies drier can bearings and gears would require a higher viscosity than that used on centrifugal pump bearings which are typically more lightly loaded.
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