How do I know what bearings I need for my trailer?

The easiest way to determine which bearings are used on your trailer axle is to take the hub off and look for the reference numbers stamped into the metal of both inner and outer bearings. If the bearing numbers are unclear, the next best solution is to take measurements of both bearings. This is the bearing itself.

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

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 often should trailer bearings be repacked?

The axle manufacturers recommend that you repack your trailer bearings once annually or every 12,000 km.

How many miles will trailer bearings last?

Thanks for any advice. Expert Reply: We recommended to repack the wheel bearings on your trailer every 12 months or 12,000 miles.

How do I know what bearing I need?

The quickest way to determine which bearing you require is using the bearings reference number. Most bearings have their references numbers engraved on the bearings themselves, but these often rub off over time and so it may be necessary to measure the bearing yourself, as described below.

What bearings do I need?

How to choose the right bearing for your application:

• Find the Bearing Load & Load Capacity. First, know the type and amount of bearing load that your application will place on the bearing.
• Know the Rotational Speed of Your Application.
• Factor in Bearing Runout & Rigidity.
• Find the Right Lubrication for Your Bearings Needs.

How do I know what size bearings to get?

It is sometimes necessary to measure bearings to determine the correct bearing type. You can measure the dimensions of a bearing by using a vernier calliper like the one below or measuring accurately with a ruler. All bearings will have a width, an inner diameter and an outside diameter.

Are inner and outer bearings the same size?

With standard bearings, the inner bearing is larger than the outer, but with parallel bearings they’re the same size.

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

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.

Are bearing buddies worth it?

Bearing Buddies are a great way to keep grease in a trailer hub. I recommend them as long as you are aware that it’s very easy to put too much grease in a hub with these which will blow out the seal. They have no problem being used on longer road trips so the would work well for you.