How to Measure Grease Seal's Inner Diameter

Question

Question:

I have a bearing numbered in front with #15123 with id measuring 1.2500 and the other bearing cant see numbers but measures @ 1.7500 id and and that seal but no serial number measuring @ 2.485 but ruber seal around was broken will this kit is what i need? If not wich one i need? Thks

asked by: David

0

Expert Reply:

The Replacement Inner Trailer Hub Bearing for 15123 is item # 15123. It has a inner diameterof 1.250. The matching race is # 15245.

Since your other bearing measures 1.750" it is a match with, Replacement Trailer Hub Bearing - 25580 Item # 25580. The matching race is # 25520.

The above bearings and races are included in bearing kits # BK3-100 and # BK3-110.

You will need to measure on your spindle where the seal sits for its inner diameter location, that is marked "B" on the attached diagram. The inner diameter either has to be 2.125 inches or 2.250.

If the inner diameter is 2.125 then you will need bearing kit # BK3-110. If the inner diameter is 2.250 then you will need bearing kit # BK3-100.

expert reply by: Timothy G

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How to Measure Grease Seal's Inner Diameter

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