How grease time and cost
can be decreased

 

Open bearings on conveyor pulleys need to be re-greased every week. The refined SKF Three-barrier solution, on the other hand, gives excellent bearing protection and extends greasing intervals to several months.

 

Better bearing protection

The upgraded SKF Three-barrier solution consists of a new housing variant with a grease-filled cavity, a Taconite seal with flanges for water repelling during washdowns, and a sealed bearing.

With three layers working together, the conveyor pulley bearing is under excellent protection.

 

Up to 90% less grease needed
Up to 99.9% if not purged

Case study

Bearing protection in action

Bearing service life doubled and relubrication intervals extended by eight times. The SKF Three-barrier solution is making a real difference to this iron ore mine in Australia.

How it works

How the solution works

How the solution works

 

  1. SKF mining-specific housing with SKF Taconite sealing or other contact seal
  2. Housing cavity grease (SKF recommends SKF LGGB 2 biodegradable grease)
  3. Sealed SKF Explorer spherical roller bearing

 

3 Barriers Mining High Vis

From weekly to quarterly

A bearing protected by three barriers (labyrinth seal, housing grease and bearing seal) only needs one-tenth of the re-lubrication of an open bearing. The service interval for greasing can therefore be prolonged from once a week to every third month. The cut in greasing time and costs is usually around 90%, and without purging, you can reach up to 99.9%.

The SKF Three-barrier solution is available with SKF LGGB 2 biodegradable, low toxic grease for the second barrier.

Start cutting your costs today

With the dimensions and procedures for bearings and housings staying the same, it's easy to switch from open pulley bearings to a sealed bearing solution. Read on to find out how much you can save with the SKF Three-barrier solution, see the solution in action or to contact us to find out more.

3 Barriers Mining Conveyor Belt

How much could you save? Try our handy calculators to find out

Return on investment

3 Barriers ROI Mining Calculator

Savings in grease costs

3 Barriers Grease Mining Calculator

Insights and inspiration

SKF Three-barrier solution

Start your journey towards 92% best in class conveyor availability

Conveyor pulley bearings in mining plants all over the world live a tough life, facing lots of dirt, heavy loads and high-pressure washdowns. The SKF Three-barrier solution protects pulley bearings from contamination and loss of grease.

3 Barriers Mining Vikan Conveyor