Front (drive) roller used on Trimline models 1100, 2200, 2250, 2400, 2650.2, 2650.2, 2650.3, 3300, 3350, 3500, 3600, 4000, 4100, 4600.

NOTE: This front roller is for units that the front roller is ADJUSTABLE.  The adjustable roller has only one bolt hole in the shaft on the side opposite the pulley. The pulley side of the shaft DOES NOT have a bolt hole.