V-Ribbed belt pulleys with a PJ profile are part of the standard range and are manufactured with a different number of ribs. V-Ribbed belt pulleys with four ribs have a pulley face width of 13.5 mm, with 8 ribs the pulley face width is 23.0 mm, with 12 ribs 32.5 mm and with 16 ribs 42.00 mm.
Please refer to the respective data sheet for more detailed properties of the individual components.