Model: SB2517-1

Inner Bearing Ring

Properties:

Overall Width

Between 3.4980 inches and 3.4985 inches

Bore Diameter

Between 1.7490 inches and 1.7500 inches

Overall Outside Diameter

Between 2.1245 inches and 2.1250 inches

Surface Finish

Ground

Bore Shape

Straight

Features Provided

Lubrication hole and lubrication groove

Criticality Code Justification

Test and ftld

Standard Tolerance Designation

Afbma standard tolerance for airframe needle bearings

Functional Description

Crtl appl aircraft flight safety

Material

Steel comp e52100

Material Specification

Sae j404 assn standard single material response or aisi uns g52986 assn standard single material response

Reference Data And Literature

Mfr selected item dwg sb2517, dod-std-100, para 201.4.5

Style Designator

Solid inner race, journal and needle

Supplementary Features

Hardness rc 60.0 min 65.0 max; operating temp m65.0 p250.0 degrees f

Test Data Document

81349-mil-t-8679 and 100.0 pct magnafux mil-i-6868 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

NSN

3110-01-257-6976

Part Number

SB2517-1

Description

Ring,bearing,inner

CAGE

78286

The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.

Part SB2517-1 NSN 3110-01-257-6976

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00028

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: 8482991010
SITC: 74699
End Use: Industrial machines, other
NAICS: 332991
USDA: 1

Freight Class: Inner and outer races for ball bearings (including ball bearings with integral shafts)