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Therefore, a Standard 0.210 cross-section 0-ring will be adequate to transmit the load when installed with a 10% stretch.

TABLE 14 OVERLOAD SERVICE FACTORS

The Overload Service Factors in Table 14 are based on an 8 to 10 hour operating day and the driving unit one of the following types:
     a. Squirrel Cage Motors--Normal Torque
     b. D.C. Motors
     c. Single Phase Motors
If the driving unit is one of the following types, add 0.2 to the foregoing factors:
     a. Squirrel Cage Motors--High Torque
     b. Wound Rotor (Slip Ring) Motors
     c. Synchronous Motors--Normal Torque
     d. Line Shafts and Clutch Starting
If the driving unit is one of the following types, add 0.4 to the foregoing factors:
     a. Synchronous Motors--High Torque
     b. Gas, Diesel or Steam Engines
For the following special drive conditions, add 0.2 to the foregoing factors:
     a. 10 to 16 Hour Service
     b. Speed-Up Drives
     c. Frequent Starting
     d. Excessive Moisture
     e. Abrasive Dust
     f. Infrequent Maintenance
     g. Excess Heat
     h. Centers less than 20 pitches
For the following special drive conditions, add .4 to the foregoing factors:

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