Megadyne Isoran RPP and Isoran RPP DD belts are a high power and high precision class of belt. Compared to Isoran
Imperial, they can transmit more power in the same width or can allow a reduction of width to transmit the same power.
This kind of belt uses a parabolic prole with the purpose to transmit more power and reduce the kind of accidents as
tooth jump and to reduce noise.
The parabolic prole has a progressive pressure angle since the tooth root up to the top. This allows to have a taller
tooth with the same pitch length.