Upgraded SKF Three-barrier solution for top-class conveyor performance

 

Top performers in mining reach a conveyor availability of 92%. The upgraded SKF Three-barrier solution for conveyor pulley bearings can help you get there.  

 

Thrive in harsh conditions

Conveyor pulleys with open bearings live a tough life, exposed to dirt and high-pressure washdowns. Ingress of dirt and loss of grease lead to insufficient bearing lubrication and premature bearing failure. The result is frequent conveyor breakdowns and a weekly need of re-greasing. In eight out of ten mining plants, conveyor availability is less than 87%.

In 2007, the SKF Three-barrier solution was introduced. The solution consists of a housing seal filled with grease and a sealed bearing.

 

+92% Best-in-class availability
SKF Three Barrier Conveyor Digger

Upgraded three-barrier solution

The SKF Three-barrier solution is available with an SKF Mining Specification variant housing. The housing is suitable for machine seals or the new SKF Taconite sealing with two rings, one stationary and one rotating, forming a narrow labyrinth between the rings. Bolt-on end covers are another new feature.

The upgraded SKF Three-barrier solution is prepared for vibration measurement, allowing smarter monitoring and preventive maintenance.

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

 

Become a top performer

The SKF Three-barrier solution offers an average bearing service life three times longer than that of an open bearing of an open bearing. The result is fewer conveyor pulley bearing breakdowns and longer intervals between maintenance, positively impacting conveyor availability.

Read on to see how much you can save, and then get in touch with our expert team to discuss the possibilities for your plant.

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

Return on investment

ROI Calculator

Savings in grease costs

Grease Calculator

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.

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.

Vikan Conveyor