Double Row TDO Series3490 Bearing

Double row tapered roller bearing TDO consists of a single-piece (double)  outer ring and two single inner rings.  This confifi guration offers a wide  effective bearing spread to support  loads created by overturning moments. These bearings can be used at  fixed  positions or allowed to float in the housing  bore to compensate for shaft expansion.


Double row tapered roller bearing TDO bearings are usually supplied complete with an inner-ring  spacer as a pre-set assembly.   To suit the application duty, the built-in setting value needs to be  established by your VAFEM engineer before an order is placed. For spacer confifi guration information, contact your Timken  engineer. Double outer ring can be used with any single inner ring from  the same series. The tables list regularly specififi ed inner-ring part numbers.

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

Dimension and Parameters

Bearing Dimensions(mm/in.)
d :38.1
D :82.55
T :66.678
C :55.562
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :182000
Factors(2)
e :0.37
Y1 :1.85
Y2 :2.75
Dynamic(3)
C90 :27100
Ca90 :17000
C90(2) :47200
Factors(2)
K :1.6
Part Number
Inner :3490
Outer :3423D
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :3.5
Backing Shoulder Dia.
db :52
Housing
Max. Housing Fillet Radius
r(4) :0.8
Backing Shoulder Dia.
Da :75
Pin(mm/in.)
Ka :
Kb :
Geometry Factors
G1 :29.9
G2 :11.2
Cg :0.0781
Bearing Weight(kg/lbs.) :1.65
Part Number:
d:
D:
B:
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