New chair casters make a chair in a home office or other workspace feel like new. When your office chair casters don’t roll quite right, they may just need any hair, fibers or dirt cleared from around the wheels. Caster wheels that have snapped, however, need to be replaced. If you can operate a screwdriver, the task is within your reach.
Turn the office chair upside down on a desk or sturdy table, and check for carpet thread or fibers caught in the wheel axle. This can be removed with needle-nose pliers, and a sharp knife or scissors. If this solves the problem, give all the axles a drop or two of lubricating oil, and return the chair to use
Find replacement office chair casters online, or at your local home center. Caster wheels are designed to roll best on different floor surfaces. If you're replacing a set of wheels, choose a type to match the surface of your work area. To replace a single bad caster, find the best match to the remaining wheels.