NNU3948 TIMKEN Multi-Row Roller Bearings NTN

Brand Name:	TIMKEN
Model Number:	NNU3948
Series:	97000
Cone Part Number:	97503
Design Units:	Imperial
Cage Type:	Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:	147000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:	38200 lbf
d:	5.0312 in
B - Cone Width:	1.9460 in

Product Details

Series	97000
Cone Part Number	97503
Design Units	Imperial
Cage Type	Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1	147000 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2	38200 lbf
d	5.0312 in
B - Cone Width	1.9460 in
R - Cone Backface To Clear Radius3	0.14 in
da - Cone Frontface Backing Diameter	5.65 in
db - Cone Backface Backing Diameter	5.94 in
Ab - Cage-Cone Frontface Clearance	0.21 in
Aa - Cage-Cone Backface Clearance	0.28 in
a - Effective Center Location4	0.52 in
C90 - Dynamic Radial Rating (90 million revolutions)5	21900 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6	84500 lbf
C0 - Static Radial Rating	109000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7	27600 lbf
K - Factor8	0.79
G1 - Heat Generation Factor (Roller-Raceway)	237.1
G2 - Heat Generation Factor (Rib-Roller End)	44.6
Cg - Geometry Factor	0.131

Phone	+65 6795 7418
Fax	+65 6795 7418