Fits: Allis Chalmers 75
Dayton 2Z970, 4Z573
Poulan / Poulan Pro 25 Series (except Micro 25), S25
Sears 35235, 35238, 35255, 35256
Skill 1635, 1636
Western Auto Wizard Models: 316, AV16
Bearing #ORE28031 (Click on the link below for repair parts)
Pitch/Teeth: 3/8"-6