This listing is for one cast steel rotary cutter tailwheel hub with industry standard four (4) bolt mounting and with tapered roller bearings and seals for a 1" axle bolt. This tailwheel hub was used by Servis Rhino and Alamo on a good portion of their rotary cutter line but they also make a great replacement on lighter cutters offering much longer life. Designed to fit most 15" diameter and 21" diameter tailwheels with 4 bolt mounting and a 5" bolt circle, they come complete with all bearings, seals, centering bushings, seal protectors, mounting bolts, axle bolt and nut.
Specifications
5" Bolt Circle 
Sized for 1"X 7-1/2" Axle Bolt with nut and cotter pin
3.62" Pilot
4-1/2" Hub Width
Grease Fitting
Replaceable Tapered Roller Bearings
Replaceable grease seals to keep bearings clean and dry
Seal protectors on each side
1/2" Mounting Bolts Included