This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft

Series 2700
Cone Part Number 2788
Cup Part Number 2720
Design Unit Inch
Cage Material Stamped Steel


Dimensions
d - Bore 38.1 mm
D - Cup Outer Diameter 76.2 mm
B - Cone Width 25.654 mm
C - Cup Width 19.050 mm
T - Bearing Width 23.813 mm

Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1 - 3.600 mm
r - Cup Backface "To Clear" Radius2 - 3.3 mm
da - Cone Frontface Backing Diameter - 43.5 mm
db - Cone Backface Backing Diameter - 50 mm
Da - Cup Frontface Backing Diameter - 71.10 mm
Db - Cup Backface Backing Diameter - 66.04 mm
Ab - Cage-Cone Frontface Clearance - 1.5 mm
Aa - Cage-Cone Backface Clearance - 1 mm
a - Effective Center Location3 - 8.1 mm