Model: SB3259A-1

Tapered Roller Cone And Rollers

Properties:

Bore Diameter
Between 2.8125 inches and 2.8130 inches
Cone Corner Radius
0.1406 inches
Cone Width
Between 1.4375 inches and 1.4455 inches
Retainer Fabrication Method
Stamped
Criticality Code Justification
Test and ftld
Standard Tolerance Designation
Afbma class 2
Functional Description
Crtl appl aircraft flight safety
Material
Steel comp e51100 or steel comp e52100
Material Specification
Sae j404 assn standard 1st material response or aisi uns g51986 assn standard 1st material response or sae j404 assn standard 2nd material response or aisi uns g51986 assn standard 2nd material response
Reference Data And Literature
Mfr selected item dwg sb3259, dod-std-100, para 201.4.5
Style Designator
Normal angle
Supplementary Features
Operating temp m65.0 p250.0 degree f
Test Data Document
81349-mil-t-8679 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.).
Type/model Designation
Ts
NSN
3110-01-257-6974
Part Number
SB3259A-1
Description
Cone And Rollers,tapered Roller
CAGE
78286

An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).

Part SB3259A-1 NSN 3110-01-257-6974

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00023
FIIG:
A044A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
Y

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Schedule B and Export
  • Schedule B: 8482800080
  • SITC: 74680
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Other ball or roller bearings, including combined ball/roller bearings, nesoi

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