Model: RB2558MILG3278A

Needle Roller Bearing

Special Features:

Oil hole and groove in inner ring; plating on exposed surfaces as mounted

Properties:

Bore Diameter
Between 0.4995 inches and 0.5000 inches
Overall Outside Diameter
Between 1.3740 inches and 1.3750 inches
Lubrication Material
Grease
Outer Ring Width
0.5000 inches
Inner Ring Width
Between 0.6200 inches and 0.6250 inches
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Alignment Type
Rigid
Features Provided
Lubrication hole and lubrication groove
Lubrication Material Specification
Mil-g-23827 military specification single material response
Material
Steel comp e52100
Material Specification
66 federal standard single material response
Surface Treatment
Chromium outer ring outside diameter
Surface Treatment
Cadmium inner ring
Surface Treatment
Cadmium retaining plate
Style Designator
Airframe, hardened and ground, non-separable
NSN
3110-00-157-0619
Part Number
RB2558MILG3278A
Description
Bearing,roller,needle
CAGE
60380

A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

Part RB2558MILG3278A NSN 3110-00-157-0619

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00051
FIIG:
A044A0
Concept No.:
App. Key:
M
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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
51
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482400000
  • SITC: 74640
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Needle roller bearings

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