1.772 Inch | 45 Millimeter x 2.677 Inch | 68 Millimeter x 0.906 Inch | 23 Millimeter CONSOLIDATED BEARING NA-4909-2RS P/6 Needle Non Thrust Roller Bearings

CONSOLIDATED BEARING NA-4909-2RS P/6 bearing Size Chart (mm/inches)
Series	1900
Cone Part Number	1986
Cup Part Number	1932-B
Design Units	Imperial
Bearing Weight	0.8 lb
Cage Type	Stamped Steel
d	1.0000 in
D	2.3125 in
D1 - Flange Outer Diameter	2.4645 in
B - Cone Width	0.7620 in
C - Cup Width	0.5937 in
C1 - Cup Flange Width	0.1562 in
T1 - Bearing Width	0.750 in
T - Bearing Width to Flange	0.3125 in
R - Cone Backface To Clear Radius1	0.050 in
r - Cup Backface To Clear Radius2	0.050 in
da - Cone Frontface Backing Diameter	1.26 in
db - Cone Backface Backing Diameter	1.34 in
Da - Cup Frontface Backing Diameter	2.24 in
Ab - Cage-Cone Frontface Clearance	0.08 in
Aa - Cage-Cone Backface Clearance	0 in
a - Effective Center Location3	-0.23 in
C90 - Dynamic Radial Rating (90 million revolutions)4	2820 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5	10900 lbf
C0 - Static Radial Rating	11300 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	1590 lbf
K - Factor7	1.77
e - ISO Factor8	0.33
Y - ISO Factor9	1.82
G1 - Heat Generation Factor (Roller-Raceway)10	12.5
G2 - Heat Generation Factor (Rib-Roller End)	6.33
Cg - Geometry Factor11	0.0565

Product Features