I have replaced the wheel bearings twice in 3 months now its going bad again....i didnt change the hub.Should i have done so.it looked a little grinded up on the inside.
I wish you would have included the make, model, and year of the vehicle you are working on So we could know how your specific assembly is made. Flying off the handle saying you should replace the hub is not always the correct answer. Some are equipped with bearing races in the hubs which can be replaced separately. Generally on these models the hub proves very expensive, but the bearing race is cheap by comparison. If you are over-tightening or under-tightening the bearings, then that would be the cause for your repeated failure. Are you cleaning all the old grease out, and putting new grease in? To most this may seem like a dumb question to ask, but I have worked on one where they didn't grease the bearings at all. You have to get them packed really well with grease, don't worry about getting dirty, you will clean up later. The thing about cleaning all the old grease out is important too. When a bearing goes bad, it can leave metal shavings in the grease, and if metal shavings get into your new wheel bearings it will tear them up. Hubs, and bearing races should be inspected when replacing wheel bearings. They do not always need to be replaced.
you really should replace the hubs too. if your doing the job then maybe your getting the bearings in crooked . it would be best to buy the hub with the bearings already in them from the factory.
you shld replace the hub as well.Proper adjustment on bearing clearance and sufficient grease is important.
