Is this a model a part Need bearings

[firechief5215]

Can You tell me if this is a model a Part. It comes out of the universal join housing to a coupler shaft and to the fire pump on our fire truck. I don't think it is on your standard model a but not sure. The needle bearing is bad and if you look at the picture the other end has a felt type seal held in by a washer and circle clip. I need to replace bearing and seal but the bearing has no numbers and im sure the seal doesn't either The tube housing measures 5" long tube od is 2 1/4" bell is 4" diameter. Measuring old bearing the best I can do to wear it is id 1.25 by od 1 7/8 length 1 3/4. Also notice the ball bearing in the hole in the housing Please give us advice on finding these parts Thanks