Double Row TDO Series74525 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 :133.35
D :215.9
T :106.362
C :80.962
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :665000
Factors(2)
e :0.49
Y1 :1.38
Y2 :2.06
Dynamic(3)
C90 :99000
Ca90 :82600
C90(2) :172000
Factors(2)
K :1.2
Part Number
Inner :74525
Outer :74851CD
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :3.5
Backing Shoulder Dia.
db :152
Housing
Max. Housing Fillet Radius
r(4) :1.5
Backing Shoulder Dia.
Da :208
Pin(mm/in.)
Ka :19.05
Kb :7.13
Geometry Factors
G1 :362.9
G2 :68.5
Cg :0.1338
Bearing Weight(kg/lbs.) :13.84
Part Number:
d:
D:
B:
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