Stackable spinner assemblies and adaptor for same

Abstract

An adaptor for stacking spinner assemblies is disclosed. The adaptor comprises a first section, where the first section has a cylindrical outer surface defined by a radius R1. The adaptor further comprises a second section opposite the first section, where the second section has a cylindrical outer surface defined by a radius R1′ and is aligned substantially concentrically with the first section. The first section is configured to extend into a bore of a first spinner assembly bearing and the second section is configured to extend into a bore of a second spinner assembly bearing. A stackable spinner assembly is also disclosed that comprises a bearing, a body, and an adaptor.

1 . An adaptor for stacking spinner assemblies, the adaptor comprising:
 a first section, the first section having a cylindrical outer surface defined by a radius R 1 ;   a second section opposite the first section, the second section having a cylindrical outer surface defined by a radius R 1 ′ and aligned substantially concentrically with the first section; and   a first bearing, seat, the first bearing seat extending outwardly away from the first section cylindrical outer surface;   wherein the first section is configured to extend into a bore of a first spinner assembly bearing and the second section is configured to extend into a bore of a second spinner assembly bearing, and wherein the adaptor is a unitary structure.   
     
     
         2 . The adaptor of  claim 1 , wherein the first bearing seat is configured to engage a first spinner assembly bearing mounting surface. 
     
     
         3 . The adaptor of  claim 1 , wherein the adaptor comprises a second bearing seat, the second bearing seat extending outwardly away from the second section cylindrical outer surface and configured to engage a second spinner assembly bearing mounting surface. 
     
     
         4 . The adaptor of  claim 3 , wherein the adaptor comprises a spacer, the spacer having a spacer cylindrical outer surface defined by a radius R 3  larger than the radius R 1  and the radius R 1 ′ and extending outwardly from a first bearing seat cylindrical outer surface and outwardly from a second bearing seat cylindrical outer surface. 
     
     
         5 . The adaptor of  claim 4 , wherein the spacer cylindrical outer surface is defined by a height that is less than a combination of a first thickness defining the cylindrical outer surface of the first bearing seat and a second thickness defining the cylindrical outer surface of the second bearing seat. 
     
     
         6 . The adaptor of  claim 1 , wherein the first bearing seat comprises a first bearing seat cylindrical outer surface defined by a first bearing seat radius larger than the radius R 1  and larger than a bore radius defining the bore of the first spinner assembly bearing. 
     
     
         7 . The adaptor of  claim 1 , wherein the adaptor defines a recess extending through at least a portion of the first section and the second section. 
     
     
         8 . The adaptor of  claim 1 , wherein the radius R 1  and the radius R 1 ′ are approximately equal. 
     
     
         9 . The adaptor of  claim 1 , wherein the adaptor comprises a thermoplastic material. 
     
     
         10 . A stackable spinner assembly, the stackable spinner assembly comprising:
 a first bearing, the first bearing having an annular shape with a first bearing radially inward facing surface and a first bearing radially outward facing surface, the first bearing radially inward facing surface defining a first bearing bore;   a first body, the first body comprising at least one arm extending radially outward from the first bearing radially outward facing surface; and   a unitary adaptor having a first section, a second section, and a seat formed between the first section and the second section and extending outward from the first section, wherein the first section is received within a portion of the first bearing bore.   
     
     
         11 . The spinner assembly of  claim 10 , further comprising a second body and a second bearing, the second body comprising at least one arm extending radially outward from a second bearing radially outward facing surface, the second bearing having an annular shape with a second bearing radially inward facing surface and a second bearing radially outward facing surface, the second bearing radially inward facing surface defining a second bearing bore, wherein the second section of the adaptor is received within a portion of the second bearing bore. 
     
     
         12 . The spinner assembly of  claim 11 , wherein the first section is opposite the second section, the first section having a first section cylindrical outer surface defined by a radius R 1  and the second section having a second section cylindrical outer surface defined by a radius R 1 ′, the second section cylindrical outer surface being aligned substantially concentrically with the first section cylindrical outer surface. 
     
     
         13 . The spinner assembly of  claim 12 , wherein the seat extends outwardly away from the first section cylindrical outer surface and engages a first bearing mounting surface on the first bearing. 
     
     
         14 . The spinner assembly of  claim 13 , wherein the adaptor comprises a second seat extending outwardly away from the second section cylindrical outer surface, the second seat engaging a second bearing mounting surface on the second bearing. 
     
     
         15 . The spinner assembly of  claim 14 , wherein the adaptor comprises a spacer extending outwardly from a first seat cylindrical outer surface and outwardly from a second seat cylindrical outer surface. 
     
     
         16 . The spinner assembly of  claim 15 , wherein the spacer comprises a spacer cylindrical outer surface defined by a radius equal to a radius defining the first bearing radially outward facing surface. 
     
     
         17 . The spinner assembly of  claim 11 , wherein the first section of the adaptor forms a press fit with the first bearing bore and the second section forms a press fit with the second bearing bore. 
     
     
         18 . The spinner assembly of  claim 11 , wherein the adaptor defines a cylindrical recess extending through the adaptor and aligned concentrically with the first bearing bore and the second bearing bore. 
     
     
         19 . The spinner assembly of  claim 10 , wherein the spinner assembly further comprises a spinner support received within a portion of the first bearing bore. 
     
     
         20 . A spinner assembly stack, the stack comprising:
 a first spinner assembly comprising a first spinner bearing having an annular shape with a first spinner bearing radially inward facing surface and a first spinner bearing radially outward facing surface, the first spinner bearing radially inward facing surface defining a first spinner bearing bore, and a first spinner body comprising at least one arm extending radially outward from the first spinner bearing radially outward facing surface;   a second spinner assembly comprising a second spinner bearing having an annular shape with a second spinner radially inward facing surface and a second spinner bearing radially outward facing surface, the second spinner bearing radially inward facing surface defining a second spinner bearing bore, and a second spinner body comprising at least one arm extending radially outward from the second spinner bearing radially outward facing surface; and   a unitary adaptor having a first section, a second section, and a seat formed between the first section and the second section, the seat extending outwardly from and outwardly beyond the first section, the first section received within a portion of the first spinner bearing bore and the second section received within a portion of the second spinner bearing bore;   wherein the first spinner assembly is coupled to the second spinner assembly.