Suggested replacement:  Snowplow salt spreader spinner motor  P56SX049, Scott / Imperial electric motor 0415005100, 500049, 34102
Applications: MEYER & SWENSON Salt Spreader Motor
 
Brand: Imperial/OHIO
Volt: 12
Rpm: 650
Amp: 20 AMP
HP:  1/2
Speed: 01
 
The motor has a six foot long connecting cable.  The hole in the shaft is 1.140 / 28.95mm from the outer end.  The drive end frame has a shaft seal . The Shaft length from the seal is 2.5/63.5mm.