Polymer bearing housing
AssigneeThe Torrington Company
InventorWalter P. Waskiewicz
Life of this patent
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Abstract
A one-piece body portion injection molded of polysulfone or similar polymer has mounting portions for securing the bearing housing to a support surface and a transverse bore having a spherically concave annular bearing seat for tiltably supporting a convex outer ring of a bearing. Diametrically opposed axially extending recesses within the bearing seat facilitate insertion of the outer race ring after molding of the body portion. The bearing housing has significantly improved stiffness and resistance to moisture, creep, thermal deflection, chipping and corrosion, making the bearing housing particularly suited for use in the food processing industry.
Claims10
A high performance pillow block bearing housing comprising:
- a one-piece body portion injection molded of a material consisting essentially of polysulfone, said body portion being formed with an upper bight portion and lower mounting feet having mounting apertures adapted for securing the bearing housing to a support surface;
- said bight portion being formed with a transverse bore having a spherically concave annular bearing seat for tiltably supporting a convex outer ring of a bearing, said bearing seat including diametrically opposed axially extending recesses for facilitating insertion of the outer race ring into the bearing seat after molding of the body portion, further comprising a strap insert-molded within the body portion and extending between mounting apertures to provide additional restraint of the outer race ring of the bearing and of a shaft on which the bearing is mounted.
A bearing housing having stiffness, retention torque, and resistance to moisture absorption, creep, thermal deflection, chipping and corrosion, the bearing housing comprising:
- a one-piece body portion injection molded of a material selected from the group consisting essentially of polysulfones, polyetheretherketones and polyphthalamides, said body portion being formed with mounting portions having mounting apertures adapted for securing the bearing housing to a support surface;
- and
- said body portion being formed with a transverse bore having a spherically concave annular bearing seat for tiltably supporting a convex outer ring of a bearing, said bearing seat including diametrically opposed axially extending recesses for facilitating insertion of the outer race ring into the bearing seat after molding of the body portion, further comprising a strap insert-molded within the body portion and extending between mounting apertures to provide additional restraint of the outer race ring of the bearing and of a shaft on which the bearing is mounted.
Dependencies are inferred from the claim text.