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UNGROUND (non-precision) and SEMI-PRECISION


Unground Bearing Numbering System

Class/Type Bore X OD Seals
UG ~ Unground
UGF ~ Unground, Flanged OD
UGFH ~ Unground, Flanged, Hex Bore
UGFS ~ Unground, Flanged, Extended
Inner Race w/Set Screws
UGT ~ Unground, Thrust Bearing
SP ~ Semi-Precision
SR ~ Snap Ring		 Bore (Inches) X OD (Inches) 2RS—2 Rubber Seals
ZZ—Two metal Shields

USDI Ungroung Bearings & Semi-Precision Bearings —HEX BORE—FLANGED

USDI P/N Interchange Interchange Bore X OD Seals
UGFH.3125X.875 AFH2028 5/16 X 7/8
UGFH.3125X1.125 AFH2036 5/16 X 1-1/8
UGFH.375X1.125 AFH2436 3/8 X 1-1/8
UGFH.4375X1.125 AFH2836 7/16 X 1-1/8
UGFH.4375X1.375 AFH2844 7/16 X 1-3/8
UGFH.4375X1.500 AFH2848 7/16 X 1-1/2
UGFH.4375X1.750 AFH2856 7/16 X 1-3/4
UGFH.4375X2.125 AFH2868 7/16 X 2-1/8
UGFH.500X1.500 AFH3248 1/2 X 1-1/2
UGFH.625X1.750 AFH4056 5/8 X 1-3/4
UGFH.6875X1.750-1RS C56FAH44P 11/16 X 1-34 1RS
UGFH.750X2.00 AFH4864 3/4 X 2

Unground bearings UG, UGF, UGFH

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