Model: 228278-4

Duplex Ball Bearing

Properties:

Overall Width

17.0 millimeters

Bore Diameter

25.00 millimeters

Overall Outside Diameter

130.00 millimeters

Lubrication Material

Grease

Surface Finish

Ground

Retainer Fabrication Method

Machined

Load Direction

Angular

Bearing Preload Designation

Light

Standard Tolerance Designation

Abec no.1

Lubrication Material Specification

Mil-g-18709 military specification single material response

Material

Steel

Style Designator

Counterbored outer ring, non-separable

Nondefinitive Specification/std Data

00 grade and 134 type

NSN

3110-00-156-8010

Part Number

228278-4

Description

Bearing,ball,duplex

CAGE

10001

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Part 228278-4 NSN 3110-00-156-8010

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

30213

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:

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Schedule B and Export

Schedule B: 8482105068
SITC: 74610
End Use: Industrial machines, other
NAICS: 332991
USDA: 1

Freight Class: Ball bearings, nesoi