Calculating Circumference of Trailer Tire

Question

Question:

What is the trailer tires length if the total diameter is 27.106? What is the formula to find a trailer tires length if stretched out?

asked by: Dane C

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Expert Reply:

To determine the length of a tire, if stretched out, you will just need to calculate its circumference. This is calculated by the formula 2(pi)r, where r equals the radius. Since the radius is half of the diameter, the correct formula for your particular tire with a 27.106 inch diameter will be 2(pi)13.553.

This gives us a circumference or length when stretch out, of 85.16 inches.

expert reply by: Chris R

0

Answer 1

The trailer tire size you referenced, 18.5 x 8.5-8, has a modern metric equivalent, which is size 215/60-8. This tire size fits rims that are 7-inches wide and when mounted and inflated the tire's overall diameter will be just over 18-inches.…

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

Seal 171255UC has an inner diameter of 1.719 inches and outer diameter of 2.565 inches. A seal that has those dimensions would actually be #58846. I've added a link to a video review of this seal for you to take a look at.

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Answer 11

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Answer 12

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Calculating Circumference of Trailer Tire

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