How Much Air Pressure Should be Put in a Boat Trailer Tire

Question

Question:

What tire pressure do you recomend for tires that I purchased for my nitro single axle bass boat trailor do no exact weight of boat it is a nitro nx 750 2004 loaded with alot of tackle and excessories I think it has 25 gallon gas tank

asked by: Randall J

1

Helpful Expert Reply:

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 passenger vehicle tires to handle more vertical load. If they are under inflated, the thicker sidewall will then generate excessive heat and cause the tire to fail. I have included a link to our help article on trailer tires for you.

expert reply by: Michael H

1

Answer 1

I can end this debate for you real fast! Trailer tires, which will have an ST in front of the size, should always be inflated to the maximum psi indicated on the tire. Trailer tires usually do not have a recommended and maximum psi indication so I am…

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Answer 2

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 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

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 5

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.…

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Answer 6

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 7

The tires should be inflated to 90 psi on the highway as well as other roads, regardless of load size. The problem is that under inflating a trailer tire will lead to degradation of the tire. On trailer tires, the side walls are thicker than on car…

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Answer 8

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 9

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 10

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 11

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 12

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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How Much Air Pressure Should be Put in a Boat Trailer Tire

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