The QJ series features a high-strength outer-ring-guided brass cage to facilitate extremely high speeds and improved running accuracy. Furthermore, a 35° contact angle helps to provide longer operating life thanks to the resulting high axial load capacity,
which in turn minimises the costs associated with downtime and maintenance.
The QJ series four-point contact ball bearings comprise an inner ring that splits into halves. Users can separate the outer ring of these advanced single-row angular contact ball bearings from the halves of the inner ring to promote easy handling.
According to NSK, the bearings are also able to sustain significant axial loads in both directions. As a result, the bearings are ideal for carrying pure axial loads, or combined loads where the axial load is high.
The compact size of the QJ series means that a single unit can replace a face to face or back to back arrangement of conventional bearings, saving design space.
The applications that are set to benefit include oil-free screw compressors, industrial
pumps, tractor transmissions, robot gearboxes and servomotors. Further applications in the
petrochemical, chemical and pharmaceutical industries can also take advantage of these bearings.