Toro 27.00 Inch OEM Wiehle Roller Assembly. This roller has a 2.50 inch diameter. This Assembly comes with the roller tube, roller shaft, adjustment nuts, grease seals, cone bearings, cup bearings, grease fittings & grease. A Wiehle roller has groves built into the roller as a standard Wiehle roller is smooth. Toro OEMs are created to keep your equipment up and running with the highest quality parts. To verify that this fits your Toro equipment, please do a model & serial number search.