Double Row TDO Series=M221 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 :1.875
D :3.937
T :1.937
C :1.562
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :42200
Factors(2)
e :=F221
Y1 :=G221
Y2 :=H221
Dynamic(3)
C90 :6280
Ca90 :3810
C90(2) :10900
Factors(2)
K :=L221
Part Number
Inner :=M221
Outer :=N221
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :0.03
Backing Shoulder Dia.
db :2.2
Housing
Max. Housing Fillet Radius
r(4) :0.03
Backing Shoulder Dia.
Da :3.66
Pin(mm/in.)
Ka :
Kb :
Geometry Factors
G1 :=U221
G2 :=V221
Cg :=W221
Bearing Weight(kg/lbs.) :3.78
Part Number:
d:
D:
B:
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