TIMKEN Bearing 388TD - 382

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 388TD - 382

TIMKEN Bearing 388TD - 382

Specifications

Series

385

Cone Part Number

388TD

Cup Part Number

382

Design Unit

Inch

Bearing Weight

1.8 lb0.8 Kg

Cage Material

Stamped Steel

Dimensions

d – Bore

2.2651 in57.534 mm

D – Cup Outer Diameter

3.875 in98.425 mm

B – Double Cone Width

2.0940 in53.188 mm

C – Cup Width

0.7018 in17.826 mm

T – Bearing Width across Cups

2.0195 in51.295 mm

Abutment and Fillet Dimensions

R – Cone Backface “To Clear” Radius1

0.03 in0.8 mm

r – Cup Backface “To Clear” Radius2

0.03 in0.76 mm

da – Cone Frontface Backing Diameter

2.56 in65 mm

Db – Cup Backface Backing Diameter

3.54 in89.92 mm

Ab – Cage-Cone Frontface Clearance

0.11 in2.8 mm

Basic Load Ratings

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

5010 lbf22300 N

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

33600 lbf150000 N

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

8720 lbf38800 N

Ca90 – Dynamic Thrust Rating (90 million revolutions)6

3040 lbf13500 N

Factors

K – Factor7

1.65

e – ISO Factor8

0.35

Y1 – ISO Factor9

1.91

Y2 – ISO Factor10

2.84

Cg – Geometry Factor11

0.0859

Spacer

Note

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

Product description of TIMKEN Bearing 388TD - 382

TIMKEN Bearing 388TD - 382,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 388TD - 382A.

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 388TD - 382,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
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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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