How do I know what trailer bearings I need?

What Size are My Trailer Wheel Bearings?

1. Support your trailer with a jack.
2. Take off the wheel and tire.
3. Remove the grease cap, cotter pin, and washer.
4. Remove the spindle nut.
5. Take out the hub itself.
6. Look for the part numbers on the inner and outer bearings to determine the correct trailer wheel bearing sizes.

How do I know what size bearings for my boat trailer?

The easiest way to determine which bearings are used on your trailer axle is to take the hub off and check for the numbers stamped into the bearings. If the bearing numbers cannot be read, the next best solution is to find the bearings’ inner diameter.

When should you replace 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 play should a trailer wheel bearing have?

For adequate trailer wheel bearing maintenance, you need to check your bearings on a regular basis. Jack up the trailer and secure it on adequate capacity jack stands. 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.

How do I know what stud pattern my trailer is?

For uneven stud holes such as 5 stud patterns, measure from the center of one stud, to the furthest edge of the most opposite stud. For even stud holes such as 4 or 6 stud patterns, simply measure from the center of one stud, to the center of the opposite stud.

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.