GQZ full complement thrust ball bearings in the series are suitable for applications where there are moderate radial loads and lighter, single direction axial loads. Their extremely low sectional height enables shaft centrelines to be positioned close together as is the case for multi-spindle drilling machines. For axial support, the bearings may be mounted against a shoulder or snap ring in the housing bore. The snap ring groove in the outer ring provides a cost-effective and axially space-saving arrangement . The appropriate snap rings are listed in the product tables. thrust ball bearings in the series have a stamped steel cover that extends over the shaft washer of the thrust bearing and is firmly attached to the radial needle roller bearing. These bearings are therefore non-separable. Bearings in the series have lubrication holes in the cover and are intended for oil lubrication. Bearings in the series should be grease lubricated. GQZ supplies the thrust ball bearing in this series filled, as standard, with a high-quality grease with good rust inhibiting properties. The cover, which has no lubrication holes, forms a gap-type seal with the shaft washer to retain the grease in the bearing.