We strongly recommend a qualified mechanic perform all installs. Warranties on our bearings and also the item you are upgrading our bearings to can be voided by improper installation, maintenance, etc.
We also recommend reading our tech article about the bearing break-in process so you know what to expect from your new bearings.
Bicycle Wheel Bearing Installation Guide (General Wheel Bearing Install Guide)
Bottom Bracket Install Guide (BB Install Guide)
Ceramic Pulley Installation Guide (Ceramic Pulley Install Guide)