Model: 31270

Annular Ball Bearing

Special Features:

3 ring construction; inner rings narrower than outer ring

Properties:

Overall Width

Between 1.2400 inches and 1.2600 inches

Bore Diameter

Between 1.7715 inches and 1.7720 inches

Overall Outside Diameter

Between 3.9700 inches and 3.9800 inches

Surface Finish

Ground

Retainer Fabrication Method

Pressed

Shield Quantity

Alignment Type

Self-aligning

Load Direction

Radial

Bore Shape

Straight

Self-alignment Location

Internal

Material

Steel

Style Designator

28a non-loading groove, non-separable

Style Designator

Non-loading groove, non-separable

NSN

3110-00-316-0129

Part Number

31270

Description

Bearing,ball,annular

CAGE

13841

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part 31270 NSN 3110-00-316-0129

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00014

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: 8482105028
SITC: 74610
End Use: Industrial machines, other
NAICS: 332991
USDA: 1

Freight Class: Angular contact ball bearings, nesoi