Double Row TDI SeriesLM278848D Bearing

Double row tapered roller bearing TDI style consists of a single-piece (double) inner ring plus two single outer rings. It is normally supplied complete with an outer-ring spacer as a pre-set assembly. To suit the application duty, the builtin setting value needs to be established by your VAFEM engineer before an order is placed. A groove and holes can be supplied in the outerring spacer to allow lubricant to pass from the bearing  housing. Contact your VAFEM engineer for spacer information.

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

Dimension and Parameters

Bearing Dimensions(mm/in.)
d :585.788
D :771.525
T :230.188
B :230.188
Load Ratings(N/lbf)
Dynamic(1)
C1(2) :5730000
Factors(2)
e :0.3
Y1 :2
Y2 :3
Dynamic(3)
C90 :853000
Ca90 :486000
C90(2) :1490000
Factors(2)
K :1.76
Part Number
Inner :LM278848D
Outer :LM278810
Bearing Dimensions(mm/in.)
Shaft
Max. Shaft Fillet Radius
R(4) :6.4
Backing Shoulder Dia.
da :616
Housing
Max. Housing Fillet Radius
r(4) :6.4
Backing Shoulder Dia.
Db :726
Geometry Factors
G1 :11553.5
G2 :930.7
Cg :0.2906
Bearing Weight(kg/lbs.) :302.76
Part Number:
d:
D:
B:
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