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| Understanding Weight Limits |
| A N E X A M P L E |
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C O M P O N E N
T C A P A C I T Y |
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The strength of each component of an assembly. e.g. Keeper P/N 04622, the ratchet begins to fail at 13,000 lbs., the hooks began to fail at 10,000 lbs., and the webbing breaks in excess of 12,000 lbs. |
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R A T E D |
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Also known as "assembly capacity" or "break strength" is the minimum load a complete assembly can withstand before failure in a laboratory pull test when the product is NEW. e.g. Keeper P/N 04622 the failure occurs in excess 0f 10,000 lbs. |
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W O R K I N G |
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The maximum weight of a load a tie-down should be subjected to during normal use. To assist the consumer in making the proper tie-down choice for the job, Keeper, the Web Sling Association and the Federal D.O.T. require the Working Load Limit to be 1/3 of the Rated Capacity. e.g. in Keeper P/N 04622 the working load limit is 3,333 lbs. |
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T H E W E
B B I N G |
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D.O.T. and Web Sling Association require each tie-down manufacturer to certify the Rated Capacity (Break Strength) and Working Load Limit of each product by attaching a tag or stencil to the product.
To obtain the full 10,000 lbs. capacity for a 2"
x 27' tie-down, "2 Stripe" (12,000 lbs. break
strength) webbing must be used. "1 Stripe" webbing would only yield a
capacity of 8,000 - 9,000 lbs. because of the sewing efficiency. |
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