TIMKEN Bearing M255449D - M255410

TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.
Material: Bearing steels
In Stock:
Photo may not represent actual item. See the technical specification for details.

Specifications of TIMKEN Bearing M255449D - M255410

TIMKEN Bearing M255449D - M255410

Specifications

Series

M255400

Cone Part Number

M255449D

Cup Part Number

M255410

Design Unit

Inch

Bearing Weight

5 lb2.3 Kg

Cage Material

Pin-Type

Dimensions

d – Bore

11.3750 in288.925 mm

D – Cup Outer Diameter

16 in406.4 mm

B – Double Cone Width

5.6875 in144.463 mm

C – Cup Width

2.3750 in60.325 mm

T – Bearing Width across Cups

5.6874 in144.460 mm

Abutment and Fillet Dimensions

R – Cone Backface “To Clear” Radius1

0.13 in3.3 mm

r – Cup Backface “To Clear” Radius2

0.130 in3.3 mm

da – Cone Frontface Backing Diameter

12.2 in310 mm

Db – Cup Backface Backing Diameter

14.92 in378.97 mm

Ab – Cage-Cone Frontface Clearance

0.22 in5.6 mm

Basic Load Ratings

C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)3

69300 lbf308000 N

C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)4

466000 lbf2070000 N

C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)5

121000 lbf537000 N

Ca90 – Dynamic Thrust Rating (90 million revolutions)6

40100 lbf179000 N

Factors

K – Factor7

1.73

e – ISO Factor8

0.34

Y1 – ISO Factor9

2

Y2 – ISO Factor10

2.97

G1 – Heat Generation Factor (Roller-Raceway)

2300

G2 – Heat Generation Factor (Rib-Roller End)

287

Cg – Geometry Factor11

0.172

Spacer

Note

Spacer shows standard nominal .01 radii, actual bearing may vary

Product description of TIMKEN Bearing M255449D - M255410

TIMKEN Bearing M255449D - M255410,Tapered Roller Bearings TDI (Tapered Double Inner) Imperial. Timken® tapered roller bearing assemblies are precisely designed to manage both radial and axial loads, even in the most unforgiving conditions.Double- or two-row Timken® tapered roller bearings feature double cups and two single cones. They are available in a variety of configurations for general industrial and automotive applications. And related type you may also like TIMKEN Bearing M255449DW - M255410.

TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.

TDI bearings are sometimes used on rotating shaft applications where a loose fit is required for ease of removal.

Size range:
ID 25.400 mm to 1200.150 mm (1.000 in. to 47.2500 in.)
OD 30.480 mm to 2460.000 mm (1.2000 in. to 96.8504 in.)

Design Attributes:
Double cone and two single cups, with or without a cup spacer.
Furnished as a matched assembly.
Cups ground to fit.

Applications:
Gear reduction units
Cranes
Calendar rolls
Industrial machinery

TIMKEN Bearing M255449D - M255410,Tapered Roller Bearings TDI (Tapered Double Inner) Imperial. A tapered roller bearing includes a retainer formed with a plurality of trapezoidal pockets. Each pocket includes cutouts formed in the crossbars defining each pocket near the narrow end thereof. A tapered roller is received in each pocket with its small-diameter end facing the narrow end of the pocket. Lubricating oil flowing into the bearing space defined radially inwardly of the retainer can quickly flows through the cutouts into the bearing space defined radially outwardly of the retainer at the narrow end of each pocket. Thus, it is possible to reduce the amount of lubricating oil flowing along the raceway of the inner ring to the large-diameter flange, and thus reduce the amount of lubricating oil remaining in the bearing, thereby reducing the torque loss due to rotational resistance of the bearing resulting from lubricating oil remaining in the bearing.

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Literature & catalogs

TIMKEN -LUBRICATION
Download
TIMKEN -TYPE- TDI
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TIMKEN-TAPERED ROLLER BEARING CAGES
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TIMKEN-TYPE- TS
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Videos

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