Double Row TNASW SeriesNA558SW Bearing

Double row tapered roller bearing TNASW double-row bearings are a  variant of type TNA, having chamfers and slots on the front face of the inner ring. TNASWE has an extended inner ring face. Slots on the inner ring provide lubrication. Cone front faces are extended, eliminating the  need for a separate cone spacer. TNASW and TNASWE bearings are supplied with a built-in  clearance, which results in a specififi ed mounted setting  range satisfactory for most applications. Types TNASW and TNASWE provide a solution for fifi xed  or floating bearing applications.

VAFEM (Shang Hai) Bearing Technology Co.,Ltd
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Double Row TNASW Series

Dimension and Parameters

Bearing Dimensions(mm/in.)
d :60.325
D :123.825
T :79.375
C :63.5
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :332000
Factors(2)
e :0.35
Y1 :1.95
Y2 :2.9
Dynamic(3)
C90 :49400
Ca90 :29300
C90(2) :86100
Factors(2)
K :1.69
Part Number
Inner :NA558SW
Outer :552D
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :3.5
Backing Shoulder Dia.
db :76
Housing
Max. Housing Fillet Radius
r(4) :1.5
Backing Shoulder Dia.
Da :115
Bearing Weight(kg/lbs.) :4.33
Part Number:
d:
D:
B:
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