Model: 457798

Cylindrical Roller Bearing

Special Features:

Internal clearance measured under 11 lb load, in accordance with lycoming turbine engineering specification e1004, heat stablized at minus 65 to plus 700 degrees f, 3 oil holes 0.0310 in. Diameter spaced at 120 degrees intervals

Properties:

Overall Width
18.0000 inches
Bore Diameter
55.0 millimeters
Overall Outside Diameter
90.0000 inches
Surface Finish
Ground
Retainer Fabrication Method
Machined
Bore Shape
Straight
Locating Feature
Nonlocating
Internal Clearance
0.0029 inches radial and 0.0039 inches radial
Standard Tolerance Designation
Rbec no.5
Material
Copper alloy retainer
Material
Steel inner ring
Material
Steel outer ring
Material
Steel roller
Style Designator
252a single row, non-locating, two lip inner ring, cylindrical outer ring, separable
NSN
3110-00-863-1237
Part Number
457798
Description
Bearing,roller,cylindrical
CAGE
52676

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 457798 NSN 3110-00-863-1237

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

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:
9
ACC:
Trailers/Vehicles

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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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