Model: 28B

Tapered Roller Bearing

Properties:

Overall Width

0.9063 inches

Bore Diameter

0.7500 inches

Overall Outside Diameter

1.9380 inches

Backface Corner Radius

0.1400 inches

Standout Width

0.2188 inches

Cone Corner Radius

0.0600 inches

Cone Width

0.8480 inches

Cup Width

0.6875 inches

Retainer Fabrication Method

Pressed

Standard Tolerance Designation

Afbma class 4

Material

Steel

Material Specification

66 federal standard single material response cup

Style Designator

Straight bore, normal angle

NSN

3110-00-155-7458

Part Number

28B

Description

Bearing,roller,tapered

CAGE

79439

A cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes bearing, roller, thrust.

Part 28B NSN 3110-00-155-7458

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00021

FIIG:

A044A0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.5000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

114820

UFC:

58860

LTL:

77.5

LCL:

WCC:

742

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8482200030
SITC: 74620
End Use: Industrial machines, other
NAICS: 332991
USDA: 1

Freight Class: Tapered roller bearings, cup and cone assemblies entered as a set, wheel hub units, other than flanged