SNASOFL207-20 L3 Standard Duty Stainless Steel Stand-Off Series Eccentric Locking 2 Bolt Flange Bearing 2.25" ID the SNASPA has an eccentric

the SNASPA has an eccentric locking bearing insert

Note: This is the spec sheet for the set screw Locking version

For wash-down applications in wet or harsh environments or where sanitary conditions are a factor

the SNATFB has an eccentric locking bearing insert

Provides torque transmission & alignment

SNASOFL207-20 L3 Standard Duty Stainless Steel Stand-Off Series Eccentric Locking 2 Bolt Flange Bearing 2.25" ID the SNASPA has an eccentricClick here for spec sheets: Stand Off Catalog Note: SNA bearings not in catalog, dimensions are the same (except "z" is longer, see SNA vs SUC pages for bearing insert dimensions), just has eccentric locking insert instead of set screw.