You don't say on what machine.
On motor vehicles, repair of front wheel bearings, means replacement.
The bearings are changeable and are an interference fit, inside the hub.
Knock the old ones out and press the new ones in.
Care is needed in pressing the new ones in, so that pressure is exerted on the right part, to save damaging the new beaing.
You generally need a haudraulic press, but could make a tool to wind it in using a long bolt or stud bar and suitable sized sockets.
Change them. They are not serviceable.
No, bad front wheel bearings would not prevent a transmission from shifting. If your car has bad front wheel bearings you will notice wheel noise or wheel looseness.
replacing 2003 fore explorer sport front wheel bearings
You can't replace just the wheel bearings. You have to replace the whole hub assembly. Costs about 200 bucks per wheel at a repair shop. I have had both of mine replaced.
the truck has hubs. 4x4 front wheel bearings are not serviceable.
Front wheel bearings in a car should be well greased but have never heard of them needing to be earthed.
The front wheel bearings are a sealed unit so repacking is not possible nor necessary.
How do you replace the front wheel bearings on a nissan frontier 4x4 1999
There are two taper roller bearings in each front hub, on a Samurai.
how do you replace rear wheel bearings on nissan pulsar
2 front wheels 4 front wheel bearings 2 inner and 2 outer
front or rear wheel drive?