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    A2031-A2127,-TIMKEN Tapered Roller Bearings 7.938mmx31.991mm A2031-A2127,-TIMKEN Tapered Roller Bearings 7.938mmx31.991mm
    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 A2000
Cone Part Number A2031
Cup Part Number A2127
Design Units Imperial
Bearing Weight 0.000 Kg0.1 lb
Cage Type Stamped Steel
d - Bore 7.938 mm0.3125 in
D - Cup Outer Diameter 31.991 mm1.2595 in
B - Cone Width 10.785 mm0.4246 in
C - Cup Width 9.538 mm0.3755 in
T - Bearing Width 10.569 mm0.4161 in
R - Cone Backface "To Clear" Radius1 0.510 mm0.02 in
r - Cup Backface "To Clear" Radius2 1.27 mm0.050 in
da - Cone Frontface Backing Diameter 12.45 mm0.49 in
db - Cone Backface Backing Diameter 12.95 mm0.51 in
Da - Cup Frontface Backing Diameter 28.96 mm1.14 in
Db - Cup Backface Backing Diameter 25.91 mm1.02 in
Ab - Cage-Cone Frontface Clearance 2.3 mm0.09 in
Aa - Cage-Cone Backface Clearance -0.8 mm-0.03 in
a - Effective Center Location3 -3 mm-0.12 in
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