The frame body (18) is so rotated that the peripheral velocity of the inner peripheral surface (39) is 28 to 57 m/min.
The peripheral speed (V2) of the second roll (6) is greater than the peripheral speed (V1) of the first roll (4).
The peripheral speed vR is greater than the web speed vF.
γ can be calculated from the peripheral speed of the rollers.
Further, the peripheral speed of the rolling roller (11r) is made to be equal to or almost equal to the surface speed of the food dough belt (9) by changing the rotating speed V2 of the rolling roller (11r).
Check that the peripheral speed of the tread surface is within ± 2 per cent of the maximum speed capability for the tyre.
Also, the flexible sheet manufacturing method satisfies the relationship of V1 > V2, where V1 is the circumferential velocity of the first drive rollers (42, 43), and V2 is the circumferential velocity of the tooth groove rollers (2, 3).
The initial compressor roll is driven at a peripheral rate of speed that exceeds an instantaneous linear rate of speed of the cutting unit.
The corrected tip speed of the blades is greater than or equal to 480 ft/sec at an approach speed.
A range of at least 30 m/sec is reached as the medium circumferential speed of the rotor head.