QA

Question: How To Change Boat Trailer Bearings

How often should I change my boat trailer bearings?

Expert Reply: We recommended to repack the wheel bearings on your trailer every 12 months or 12,000 miles. There is not a specific guideline as far as actually replacing the bearings. When repacking them with grease, you will also just want to check for any damage or wear and replace anything if needed.

How much does it cost to replace wheel bearings on a boat trailer?

Some Class A RV owners have stated that it cost anything from $300 to $500 to replace the bearings. Depending on how much you use your trailer and how many miles you get on it, you can wait till about 20,000 miles before your wheel bearing has to be repacked.

How much does it cost to repack trailer bearings?

Trailers tend to be cheaper to repack professionally (think $100-$200), but don’t underestimate the power of the upsells a mechanic might try to give you. If you’re serious about cash, you can likely save a few bucks by repacking your bearings yourself.

How do I know if my trailer bearings need grease?

Keep your hand on the wheel and spin it. If you feel any motion that is not smooth, hear any noises, or if the wheel does not spin freely, the wheel bearing is defective or needs lubrication.

How long does it take to change trailer wheel bearings?

How many trailers have you seen on the side of the road this year with one wheel propped up? Don’t let it happen to you. If you haven’t checked your wheel bearings lately, read this article. You can complete this simple task in about an hour and save yourself a big repair bill.

How much are bearing buddies?

Bearing Buddy Stainless Steel Bearing Protectors (1.980″ Diameter) with Auto Check With Bras – Pair List Price: $36.99 Details You Save: $8.70 (24%).

How long do boat trailer bearings last?

It is hard to say a specific number when talking about boat trailer bearings. Some experts give them a life span of 85,000 to 100,000 miles.

How often do you need to grease boat trailer bearings?

The most effective way to keep your rig rolling is vigilance. How often to grease boat trailer bearings? Keep the bearings greased and take them apart and service them at least once per year.

What happens when a trailer bearing fails?

A damaged wheel bearing does not only cause a vehicle to be shaky and noisy; it can also cost you more money by damaging other nearby parts, and even force your entire wheel to fly off when driving at high speed.

Can you over grease trailer wheel bearings?

They keep grease packed into the hub. munchy wrote: More grease is never the right answer. Overgreasing can actually cause the rollers/balls to slide over the bearing surface rather than roll over them.

How much play should trailer bearings have?

Check wheels for side-to-side looseness – There should be a very slight amount of play in the wheel, typically 1/8-inch or less. If the wheels are loose or spin with a wobble, the bearings must be serviced or replaced.

How tight should boat trailer bearings be?

Correct Torque Rating for a Trailer Wheel Spindle Nut The nut on the spindle should be tightened until snug, with no side-to-side play in the hub and then backed off slightly, about maybe a 1/8 of a turn.

Can you over grease a bearing?

Too much grease volume (overgreasing) in a bearing cavity will cause the rotating bearing elements to begin churning the grease, pushing it out of the way, resulting in energy loss and rising temperatures. This can result in accelerated wear of the rolling elements and then component failure.

Should you grease wheel bearings?

Not only should grease be packed into the bearing, but some grease should be applied to the housing and on the wheel end’s inside surfaces where the bearing sits. This will help prevent corrosion. The housing should also have some grease in the cavity surrounding the bearing, but it should not be filled.

Can you put too much grease in a bearing buddy?

Can Bearing Buddy Bearing Protectors Be Over-Filled with Too Much Grease It is possible to over-fill a hub that has a Bearing Buddy bearing protector such as #BB1781. The convenience of easy filling through the zerk fitting can often mean we can be tempted to keep adding more grease.

Should I fill my trailer hub with grease?

1 and 2), pump a ring of grease into the entire circumference of the wheel hub and coat the hub cap inner wall. The housing should only be half full of grease. Too much grease causes churning and higher temperatures. Semi-fluid grease must be used with a vented hub cap.

How do you know when a Bearing Buddy is full?

The air pockets inside the hub cavity and Bearing Buddy® will work their way out past the piston (or blue ring) on the Bearing Buddy®. You should see the piston extend out or the blue ring past the front of the Bearing Buddy® when it’s properly filled.

Do bearing buddies work on boat trailers?

Bearing buddies are really designed for boat trailers, since they go thru the thermal expansion/ contraction cycles much quicker then other trailers.