Model: MIL-B-17931

Duplex Ball Bearing

Special Features:

Type 134, class 2, cartridge b, phenolic retainer/inpair

Properties:

Overall Width

1.9686 inches

Bore Diameter

Between 1.7715 inches and 1.7717 inches

Overall Outside Diameter

Between 3.9368 inches and 3.9370 inches

Lubrication Material

Grease

End Application

Control unit

Surface Finish

Ground

Retainer Fabrication Method

Pressed

Load Direction

Angular

Internal Fit-up Designation

Tight

Lubrication Material Specification

Mil-g-18709 military specification single material response

Material

Steel

Material Specification

Mil-b-17931, size 7309 military specification single material response

Style Designator

90a universal ground faces, counterbored outer ring, non-separable

NSN

3110-01-491-2888

Part Number

MIL-B-17931

Description

Bearing,ball,duplex

CAGE

81349

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 MIL-B-17931 NSN 3110-01-491-2888

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

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:

Construction Materials

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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