A 2-5/16" × 1" coupler ball (commonly called a trailer hitch ball) is a towing component used to connect a trailer to a towing vehicle.
Description
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Ball Diameter: 2-5/16 inches – this is the size of the ball that fits into the trailer’s coupler socket.
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Shank Diameter: 1 inch – the threaded shaft that goes through the hitch mount or drawbar.
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Material: Usually made of high-strength steel, often chrome-plated or zinc-coated to resist rust.
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Mounting: The 1-inch shank passes through the hitch platform and is secured with a washer and nut.
Function
The main function of the coupler ball is to create a secure pivot connection between the towing vehicle and the trailer. It allows the trailer to:
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Attach securely to the vehicle’s hitch.
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Pivot and articulate during turns and uneven road surfaces.
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Support the trailer tongue weight while towing.
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Allow safe towing of heavy loads, often used for large trailers, equipment trailers, or RVs.
Typical Uses
A 2-5/16" hitch ball is commonly used for:
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Heavy-duty utility trailers
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Equipment trailers
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Livestock trailers
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Large campers or RV trailers
These balls are typically rated for 10,000–30,000+ lbs towing capacity, depending on the model and manufacturer
Measurements
6" x 2.5" x 2.5"
