NTN Bearing Corp. of America launched the ROX spherical roller bearing product line.
NTN says the line is designed to withstand the extreme conditions of aggregates, mining and heavy industrial environments. ROX is the only spherical roller bearing on the market with double metal shields affixed to the cage, according to NTN. This protects the bearing’s interior from external contamination while improving grease retention.
“We are thrilled to be able to offer our customers the newest of our cutting-edge solutions,” says Kris Leming, product manager at NTN. “Combining robustness, ease of use and proven performance, ROX sets a new standard for reliability in heavily contaminated industrial environments. This new solution completes one of the most extensive ranges on the market and confirms NTN’s commitment to providing sustainable, high-performance solutions adapted to the realities of the field.”
Interchangeable with standard open bearings of the same size, ROX is designed to operate in particularly demanding environments where abrasive dust, mud, vibration, shock and wide temperature variations (minus-40 degrees to 400 degrees) are present. The metal shields effectively block the entry of dust and debris, and nitriding the shields improves impact resistance. The absence of contact with the outer ring ensures zero friction and allows for up to 2 degrees of misalignment, as well as play control.
According to NTN, product testing has shown a twofold increase in the minimum service life compared to standard solutions. With optimized grease retention, ROX also reduces the frequency of re-lubrication by more than 50 percent, the company says. NTN adds that ROX reduces maintenance, decreases unplanned downtime and improves productivity.
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