How to Measure to Identify Correct Replacement Grease Seal

Question

Question:

Having difficulty installing grease seal on back side of hub for small boat trailer. Have tried tapping with rubber mallet and using a block of wood. Seal is same size as old seal but still no go. Thanks,

asked by: Loyd

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Expert Reply:

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 fit and no fit. Two seals that may appear identical in size to the naked eye could still have slightly different dimensions. It is not reliable to use an old seal to match up to a new one since over time they can become deformed.

If you can remove the new seal from the hub without bending or damaging it, please do so and then inspect the inside hub bore. Look for any signs of scoring or heat damage. Also check for any build-up of residue from grease that may have become very hot and fused to the bore.

You can make sure you have the correct seal by using a precision dial or digital caliper like # PTW80157 to precisely measure the hub bore (for the seal outer diameter) and the spindle (for the inner diameter). You can then use the linked page to select the correct part.

expert reply by: Adam R

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Answer 1

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…

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Answer 2

I was able to locate the correct bearings, races and seal that correspond to the part numbers you provided in your question. For bearings you will need the part #L44649 and for races you will want #L44610. Then for the grease seal you will use part…

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Answer 3

There is a couple of way to determine which wheel bearings and grease seals you will be needed for a trailer axle. First, checking the numbers on the wheel bearings and seal will allow you to select the correct parts for your axle. However, in some…

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Answer 4

The closest grease seal we have to what you're looking for is the Grease Seal part #10-9 which measures 1.500" I.D. x 1.987" O.D. It's commonly used on 2,700 lb axles.

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Answer 5

The grease seal part #10-9 that you referenced is designed for use on a trailer hub, but if the inner and outer diameters match what you golf cart has it could potentially work for you. The inner diameter of the seal is 1.5 inches and the outside…

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Answer 6

I went out to the warehouse and found that the TruRyde Grease Seals #RG06-020 that you referenced are 1/4" thick. If the ID and OD are correct for your application then this is the correct set of grease seals for you as those are the…

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Answer 7

Thanks for the dimensions of your seals. Based on that the correct replacement would be the part #RG06-010 for a pair or part #34823 for a single seal. We have replacement cotter pins like the part #165649 which is steel but we do not have any…

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Answer 8

Thank you for the grease seal part numbers you provided. I was not able to find a seal cross reference for these so to select replacements your best bet is to measure your spindle diameters and hub bores to get the required inner and outer seal…

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Answer 9

The #168233 Double Lip Grease Seal has an outside diameter of 2.332 inches and an inside diameter of 1.688 inches. This seal is not compatible with a AF2527E seal with a O.D 2.312, because, even though the O.D. id very close, the inner diameter of…

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Answer 10

Inner and outer diameter of grease seal is the most important. The outer diameter being more exact since the inner can be harder to get an exact figure on since it's rubber there and can be somewhat stretched or hard to measure. The thickness is…

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Answer 11

Grease seals are offered in so many similar sizes that it is best to measure precisely, with a digital caliper like #PTW80157. The seal itself can easily change dimensions, from aging of the inside rubber ring and from the forces required to remove…

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Answer 12

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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How to Measure to Identify Correct Replacement Grease Seal

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