Older clare furnace with loud blower motor
I have a clare furnace model # HEM8 90-8 direct vent. The blower motor started making a lot of noise so I removed it and checked it out. There is a fan blade inside and it broke free from the piece that slips over the shaft. I tried to get it to stay which it did for a bit and it started making the noise again. I guess I need at a minimum a new fan blade or a new blower motor, the problem is I can not find one anywhere. The information I got of the blower motor is as follows: Model Emerson K33HXCFE-964 Volt 120 RPM- 3450 Pt.No. M-053 Mfg. No. M008.
Any information would be greatly appreciated. Thank you.