Fersa F18021 deep groove ball bearings

We work closely with our Fersa F18021 deep groove ball bearings manufacturing Imperial Design Units partners to bring the best value 290000 Series to customers.

Series	290000
Cone Part Number	EE291201
Design Units	Imperial
Cage Type	Stamped Steel
C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)1	347000 lbf
C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)2	90000 lbf
d	12 in
B – Cone Width	2.4375 in
R – Cone Backface To Clear Radius3	0.310 in
da – Cone Frontface Backing Diameter	12.76 in
db – Cone Backface Backing Diameter	13.27 in
Ab – Cage-Cone Frontface Clearance	0.34 in
Aa – Cage-Cone Backface Clearance	0.4 in
a – Effective Center Location4	0.3 in
C90 – Dynamic Radial Rating (90 million revolutions)5	51700 lbf
C1 – Dynamic Radial Rating (1 million revolutions)6	199000 lbf
C0 – Static Radial Rating	312000 lbf
Ca90 – Dynamic Thrust Rating (90 million revolutions)7	33400 lbf
K – Factor8	1.55
G1 – Heat Generation Factor (Roller-Raceway)	1580
G2 – Heat Generation Factor (Rib-Roller End)	245
Cg – Geometry Factor	0.156

Detailed Parameters

parameter：

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