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Quarry Conveyor and Cement Field Tests with KIZEI® Bearings


5 November 2020 - Toronto - KIZEI - Products

Quarry Conveyor and Cement Field with KIZEI Bearing image

KIZEI® has been rigourously tested and shown to make a difference in quarry and cement applications, achieving twice the service lifetime.

Customer Benefits:

  • Optimized production output due to longer service life
  • Reduced maintenance costs
  • Easy to use



1. Less bearing deterioration with twice the service lifetime
After 2,200 hours of service on a quarry conveyor, it was found that the KIZEI® bearing, having worked for twice as long as the original open bearing, displayed far fewer contamination indentations. This proved that the metal shield was really doing its job.

2. Maximized profits
The second highly revealing test took place in the abrasive, dusty environment of a cement works. The company had recorded a $1,174,000 loss due to downtime caused by near-monthly replacement of the open bearing. When KIZEI® bearings were used, there were three times fewer shutdowns, and the cement works plant saved over $793,000 in the first year.

To learn more about the KIZEI® product line, please contact your NTN sales representative. You can also access additional information about KIZEI® Spherical Roller Bearings at

Download NTN-KIZEI® Press Release




About NTN

Founded in 1918, NTN is one of the world's largest producers of premium quality ball and roller bearings, long recognized for the most stringent quality standards in the industry. With plants around the globe and a strong domestic manufacturing network, over 80% of the products sold by NTN in North America are made by one of the ten plants the company operates in Canada and the USA. NTN is also a leading provider of bearing services which include technical support, maintenance and reliability services, engineering consulting and training. NTN's company vision is "to transform into Canada’s leader of the Ultimate Bearing Experience."

NTN Contact

Rita Payne, NTN Marketing: