SKF BSD2562CGA Bearings The SKF 7020CDGA/P4A are a

The SKF 7020CDGA/P4A are a super-precision

Lube fittings with metal threads on all sides

compared to the equivalent SKF B and E design high-speed bearings

Overall length of the runner block = 110

these NAH45EMZ are what you are looking for

SKF BSD2562CGA Bearings The SKF 7020CDGA/P4A are aThe SKF BSD2562CGA is a super precision ball bearings offer very high running accuracy and are well suited for screw drive applications. They are also beneficial in other applications, where safe radial and axial support is required, together with extremely precise axial guidance of the shaft. Under normal operating conditions, sealed bearings are almost maintenance free, keeping service costs and grease consumption low. Very high running accuracy