Abstract: A planetary napping machine includes a napping roller drum assembly and cylinder head construction which facilitates assembly and servicing of the apparatus. The napping machine includes a frame and a napping roll drum assembly having a main shaft which is rotatably supported on the frame. One end of the main shaft engages with a drive assembly to drive rotation of the napping roll drum relative to the frame. The napping roll drum assembly includes spaced cylinder heads mounted on the main shaft, and napping rollers each having first and second ends which are respectively rotatably journaled in bearing assemblies which are circumferentially spaced around said first and second cylinder heads. The first ends of the napping rollers have extended end portions which extend through the bearing assemblies on the cylinder heads. The drum assembly still further includes drive motors respectively mounted on the cylinder heads.