Model: 28580-28521 AND 18790-18720

Tapered Roller Bearing

Special Features:

Matched set of two bearing of different od and width with cone spacer only, no cup spacer; smallest bearing 3.6250 in. Diameter od, 1.0000 in. Cone width, 0.7813 in cup width, 0.9688 bearing width; 2.1635 in. Max cone spacer width

Properties:

Overall Width

3.8268 inches

Bore Diameter

2.0000 inches

Overall Outside Diameter

3.6250 inches

Backface Corner Radius

0.0310 inches

Standout Width

0.1875 inches

Cone Corner Radius

0.1400 inches

Cone Width

3.8268 inches

Cup Width

3.4831 inches

Retainer Fabrication Method

Pressed

Standard Tolerance Designation

Afbma class 2

Material

Steel

Style Designator

Straight bore, single cups, single cones cup and cone spacers

Specification Data

84955-k671414 manufacturers source control

NSN

3110-00-555-3662

Part Number

28580-28521 AND 18790-18720

Description

Bearing,roller,tapered

CAGE

60038

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 28580-28521 AND 18790-18720 NSN 3110-00-555-3662

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:

1.4000lbs

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