How to Measure Trailer Spindle & Hub to Determine Grease Seal Dimensions

Question

Question:

Hi there. Quick question, I have a 1-1/6inch spindle using L44649 and L44610 Bearing Set. What size of grease seal do I need. I cant see any part # on my old ones. Thank you for your help.

asked by: Chris

0

Expert Reply:

Since we do not offer any hubs that take the bearing set L44649 and L44610 the best way to determine which grease seal you need for your spindle is to measure it to three decimal places (like 1.234-inches) with a precision caliper like # PTW80157.

Please refer to the linked photo that shows where to measure your spindles for the seal's inner diameter (position B). You will also need to measure the hub's bore where the seal will be installed; this will tell you the outer diameter for the seal.

Once you have these dimensions you can use the page linked to select a grease seal with matching dimensions.

expert reply by: Adam R

0

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Answer 1

That bearing is not a very common one used anymore since it has an inner diameter of .75 inch. We don't have a way to find out what seal it was used with normally but we can help you measure and determine what you would need. The first…

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Answer 2

You can verify that the 10-19 grease seal included in Bearing Kit #BK2-100 is the correct one for your spindles by taking two measurements. First you want to measure the rear hub bore where the seal is inserted. The seal's outer diameter needs to…

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Answer 3

The bearing number 1980 doesn't cross reference with anything we have here, but I can still help you find the correct replacement seal. You will need to take an accurate measurement of the outside diameter of your existing seal, or the inside…

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Answer 4

First, make certain that your new seal has the exact same part number or dimensions as your old one. Seals come in many sizes and can differ as little as a few thousandths of an inch. That small diameter change can mean the difference between a good…

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Answer 5

The spindle dimensions are as follows: A is the mounting dimension, B is the seal dimension, C is the inner bearing surface, D is the outer bearing surface and E is the diameter of the threaded portion of the spindle for spindle nut selection. Say…

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Answer 6

The best way to determine which replacement hubs you need for your trailer would be to remove one of the hubs and retrieve the bearings. Find the numbers stamped into the bearings and with those we will be able to get you the correct hubs. If you are…

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Answer 7

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 8

On a towing setup you are always limited by the lowest rated component as the overall towing capacity since that is the weakest point. When it comes to trailer tires you always want to have them inflated to their max psi when cold. Not only do you…

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Answer 9

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 10

We recommend that all trailer tires be inflated to the max psi stated on the sidewall of the tire. If the tire is under inflated, the weight capacity is lowered to an unknown amount for that tire. Although running lower air pressures can improve the…

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Answer 11

Trailer tires should always be inflated to the maximum psi as indicated on the tire regardless of the load on the trailer. The reason for this is because of how trailer tires are constructed. Trailer tires are made with a thicker sidewall than…

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Answer 12

Grease seals such as those included with the #DBRKHW35EZ bearing kit should be be installed so that they are flush with the hub bore. If the correct seal is used, everything should fit together perfectly. As long as the castle nut is correctly ran…

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How to Measure Trailer Spindle & Hub to Determine Grease Seal Dimensions

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