american CC330 SINGLE ROW CYLINDRICAL ROLLER BEARING

How do you find 38,1 mm d1 the american CC330 SINGLE ROW CYLINDRICAL ROLLER BEARING specification? 25.4x52x34.9 Manufacturers Online Free check！

Brand Name:	american
Model Number:	CC330
Series:	LM767700
Cone Part Number:	LM767749DW
Cup Part Number:	LM767710
Design Units:	Imperial
Bearing Weight:	191.10 lb
Cage Type:	Stamped Steel
Aa - Cage-Cone Backface Clearance:	0 in
d:	16.0000 in

Product Details

Series	LM767700
Cone Part Number	LM767749DW
Cup Part Number	LM767710
Design Units	Imperial
Bearing Weight	191.10 lb
Cage Type	Stamped Steel
Aa - Cage-Cone Backface Clearance	0 in
d	16.0000 in
D	21.5000 in
B - Double Cone Width	5.4375 in
C - Cup Width	2.1250 in
T - Bearing Width across Cups	5.4374 in
R - Cone Frontface To Clear Radius1	0.060 in
r - Cup Backface To Clear Radius2	0.250 in
da - Cone Frontface Backing Diameter	16.81 in
Db - Cup Backface Backing Diameter	20.08 in
Ab - Cage-Cone Frontface Clearance	0.22 in
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3	87600 lbf
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4	589000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5	153000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	71100 lbf
K - Factor7	1.23
e - ISO Factor8	0.47
Y1 - ISO Factor9	1.42
Y2 - ISO Factor10	2.12
G1 - Heat Generation Factor (Roller-Raceway)11	3390
Cg - Geometry Factor12	0.216