NA4900 Needle roller bearings - Horton Bearing Services

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NA4900 Needle roller bearings image

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The details of Needle roller bearings

Series:55000C
Cone Part Number:55206C
Cup Part Number:55437-B
Design Units:Imperial
Bearing Weight:3 lb
Cage Type:Stamped Steel
d:2.0625 in
D:4.3750 in
D1 - Flange Outer Diameter:4.5938 in
B - Cone Width:1.0594 in
C - Cup Width:0.8125 in
C1 - Cup Flange Width:0.2188 in
T1 - Bearing Width:1.1875 in
T - Bearing Width to Flange:0.5938 in
R - Cone Backface To Clear Radius1:0.14 in
r - Cup Backface To Clear Radius2:0.130 in
da - Cone Frontface Backing Diameter:2.54 in
db - Cone Backface Backing Diameter:2.83 in
Da - Cup Frontface Backing Diameter:4.25 in
Ab - Cage-Cone Frontface Clearance:0.16 in
Aa - Cage-Cone Backface Clearance:0.17 in
a - Effective Center Location3:0.3 in
C90 - Dynamic Radial Rating (90 million revolutions)4:8810 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5:34000 lbf
C0 - Static Radial Rating:36200 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6:13300 lbf
K - Factor7:0.66
e - ISO Factor8:0.88
Y - ISO Factor9:0.68
G1 - Heat Generation Factor (Roller-Raceway)10:48.7
G2 - Heat Generation Factor (Rib-Roller End):15.4
Cg - Geometry Factor11:0.12

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