Model: NA749-743DS

Tapered Roller Bearing

Special Features:

Oilhole and groove in cup, externally aligning

Properties:

Overall Width

4.0000 inches

Bore Diameter

3.2500 inches

Overall Outside Diameter

6.6250 inches

Backface Corner Radius

0.0620 inches

Standout Width

0.3125 inches

Cone Corner Radius

0.1400 inches

Cup Width

3.3750 inches

Retainer Fabrication Method

Pressed

Standard Tolerance Designation

Afbma class 2

Material

Steel

Style Designator

Straight bore, aligning double cup, single cones, non-adjustable

NSN

3110-00-158-8464

Part Number

NA749-743DS

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 NA749-743DS NSN 3110-00-158-8464

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:

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