Double Row TNASWE SeriesNA48990SW 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 specific edmounted setting range satisfactory for most applications. Types TNASW and TNASWE provide a solution for fifixed or floating bearing applications.

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

Dimension and Parameters

Bearing Dimensions(mm/in.)
d :6
D :8.3125
T :3.625
C :2.75
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :114000
Factors(2)
e :0.36
Y1 :1.89
Y2 :2.82
Dynamic(3)
C90 :17000
Ca90 :10400
C90(2) :29600
Factors(2)
K :1.64
Part Number
Inner :NA48990SW
Outer :48920D
Bearing Dimensions(mm/in.)
Bearing
Outside Dia. (rib)
d1 (4) :7.2085
Shaft
Max. Shaft Fillet Radius
R(5) :0.14
Backing Shoulder Dia.
db :6.61
Housing
Max. Housing Fillet Radius
r(5) :0.03
Backing Shoulder Dia.
Da :8.03
Bearing Weight(kg/lbs.) :20.399
Part Number:
d:
D:
B:
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