ROLLER COMMAND NUMBER OF ROWS TWO ROWS CYLINDRICAL SURFACE WITH INSULATION, W / SEALED WITH ECCENTRIC RING S / EXCENTRIC RING EXTERNAL DIAMETER (MM) 47.00 MM, WIDTH (MM) 24.00 MM TYPE THREADED EXTREMITY SHAFT DIAMETER (MM) 20.00 MM PITCH 1.50 MM, LONG TREE 40.50 MM SKF PWKR 47.2RS