IKO RNA 4917U needle roller bearings

IKO RNA 4917U needle roller bearings, Units and Housings CAD models , Manufacturing Service 394D Cup Part Number . Get Your 395 Series Free.

Series	395
Cone Part Number	390A
Cup Part Number	394D
Design Units	Imperial
Bearing Weight	4 lb
Cage Type	Stamped Steel
Ab – Cage-Cone Frontface Clearance	0.11 in
d	2.5000 in
D	4.3307 in
B – Cone Width	0.8660 in
C – Double Cup Width	1.8125 in
T – Bearing Width across Cones	2.0624 in
R – Cone Backface To Clear Radius1	0.06 in
r – Cup Frontface To Clear Radius2	0.03 in
db – Cone Backface Backing Diameter	2.87 in
Da – Cup Frontface Backing Diameter	4.12 in
Aa – Cage-Cone Backface Clearance	0.05 in
C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)3	5760 lbf
C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)4	38700 lbf
C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)5	10000 lbf
Ca90 – Dynamic Thrust Rating (90 million revolutions)6	3970 lbf
K – Factor7	1.45
e – ISO Factor8	0.4
Y1 – ISO Factor9	1.68
Y2 – ISO Factor10	2.5
G1 – Heat Generation Factor (Roller-Raceway)11	56
G2 – Heat Generation Factor (Rib-Roller End)	21.4
Cg – Geometry Factor12	0.0984

Detailed Parameters

parameter：

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