This SAE standard defines flywheel configuration for industry standardization, interchangeability, and compatibility. Table 1 and Figure 1 give the dimensions for he flywheels. For dimensions of industrial power take-offs with driving-ring type overcenter cluthes, see SAE J621. For flywheel dimensions for engine-mounted torque converters without front disconnect clutch, see SAE J927.
The technical report covers technology, products, or processes which are mature and not likely to change in the foreseeable future.