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3 reasons for premature failure light (and how to avoid them)

Each bearing is not a story - that can help identify equipment problems, problems maintenance, with selection errors and other important issues. Are you interested?

In the pulp and paper industry, bearings face harsh conditions every day, and this can cause premature bearing failure. When the bearings fail, the rapid replacement to minimize the time of inactivity is the first priority. In fact, take the time to investigate the causes of bearing failure can actually increase uptime and reduce both maintenance time and cost.

Crawl

Creep is where sliding occurs in the areas of adjustment and thereby creates a space on the surface of adjustment.

What to Look For: A glossy surface and sometimes scoring or wear.

Cause:

Failure baggy or interference

Insufficient clamping sleeve

Solution:

Check interference and prevent rotation

Correct the adjustment sleeve

Study of the shaft and housing accuracy

Preload in the axial direction

Tighten the bearing ring face side

Apply adhesive to the surface adjustment

Apply a layer of lubricant to the fitting surface

Scales

The scales occurs when small pieces of bearing material was separated from the smooth surface of the pipe or rolling elements rolling due to fatigue, thus creating textured regions and thick.

Search for: Rough, course texture on the surface.

Cause:

Overload

Poor assembly (misalignment)

Load moment

The entry of foreign materials, water penetration

Poor lubrication, lubricant inappropriate

Game inadequate supports

Inappropriate precision shaft or housing, unequal rigidity of housing, greater curvature axis

The progression of rust, corrosion, holes, stains, dents (brinelling)

Solution:

Reconfirm the application, and check the load

Improve assembly method

To improve the sealing mechanism to prevent oxidation of operating hours

Use a lubricant with a suitable viscosity, improve lubrication method

Check accuracy shaft and housing

Check the bearing internal clearance

Smearing

Smearing is the damage that occurs from the surface a collection of small seizures between support elements by breaking the oil film and / or slip.

Search for: roughness surface occurs with the merger.

Cause:

High speed and light load

A sudden acceleration / Deceleration

Improper lubricant

Water inlet

Solution:

Improve preload

Improving bearing clearance

Use a lubricant with the ability to form a good oil film

Improve the method of lubrication (lubrication download our guide for easy reference)

Improved locking mechanism

Given the failure not only affects specific equipment can cause Full facilities to grind to a halt. Not address the immediate problem by simply installing a new bearing, to investigate the cause of the failure of the bearing. You may be able to extend bearing life, improve productivity and reduce maintenance costs by identifying and resolving issues bearing selection installation, lubrication and application.

For more information on maximizing the life of the bearing to increase uptime, www.thinknskuptime.com visit and access our online solution guide!

About the Author

NSK Corporation
is a world-class producer of ball and roller bearings. Established in 1916, NSK is one of the leaders in the bearing industry due to our intense commitment to engineering research, dedication to modern manufacturing processes and an obsession with quality.