Model: 2180631

Cylindrical Roller Bearing

Special Features:

Silver plate cage per ams 2412 0.001-0.002 thk on land riding surfaces and roller pockets. Bake at 475-500f for 2 hrs to check for bond

Properties:

Overall Width
Between 1.2290 inches and 1.2300 inches
Bore Diameter
Between 3.7399 inches and 3.7402 inches
Overall Outside Diameter
Between 5.4331 inches and 5.4336 inches
Surface Finish
Ground
Bore Shape
Straight
Locating Feature
Nonlocating
Internal Clearance
0.0018 inches bias megawatts and 0.0023 inches angular megawatts
Internal Clearance
0.0018 inches bias megawatts and 0.0023 inches radial
Standard Tolerance Designation
Rbec no.5
Material
Steel comp 4340 retainer
Material
Steel inner ring
Material
Steel outer ring
Material
Steel roller
Material Specification
Pwa-725, 97497 mfr ref 1st material response outer ring
Material Specification
Pwa-725, 97497 mfr ref 2nd material response inner ring
Material Specification
Pwa-725, 97497 mfr ref 3rd material response roller
Style Designator
252h single row, two-direction locating, two lip inner ring, two lip outer ring, separable
Style Designator
Single row, two-direction locating, two lip inner ring, two lip outer ring, separable
NSN
3110-00-182-8078
Part Number
2180631
Description
Bearing,roller,cylindrical
CAGE
77445

A nonadjustable roller bearing consisting of a single or multiple-row of hardened cylindrical rollers and a retainer used with or without inner or oute r rings. Excludes bearing, roller, airframe.

Part 2180631 NSN 3110-00-182-8078

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00015
FIIG:
A044A0
Concept No.:
App. Key:
L
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:
S
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
3.2000lbs
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:
77.5
WCC:
742
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8482500000
  • SITC: 74650
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Other cylindrical roller bearings

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