Double Row TDO Series=M1255 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 :11.25
D :19.75
T :8
C :4.75
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :533000
Factors(2)
e :=F1255
Y1 :=G1255
Y2 :=H1255
Dynamic(3)
C90 :79400
Ca90 :113000
C90(2) :138000
Factors(2)
K :=L1255
Part Number
Inner :=M1255
Outer :=N1255
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :0.25
Backing Shoulder Dia.
db :12.95
Housing
Max. Housing Fillet Radius
r(4) :0.13
Backing Shoulder Dia.
Da :18.43
Pin(mm/in.)
Ka :
Kb :
Geometry Factors
G1 :=U1255
G2 :=V1255
Cg :=W1255
Bearing Weight(kg/lbs.) :314.94
Part Number:
d:
D:
B:
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