Model: KR4-CNB

Self-aligning Plain Bearing

Special Features:

12 degrees self-alignment in either direction

Properties:

Bore Diameter
Between 0.2495 inches and 0.2500 inches
Outer Member Outside Diameter
Between 0.6557 inches and 0.6562 inches
Outer Member Width
Between 0.2450 inches and 0.2550 inches
Inner Member Width
Between 0.3410 inches and 0.3430 inches
Static Radial Load Rating
7200 pounds
Hardness Rating
28.0 rockwell c outer race member
Hardness Rating
58.0 rockwell c inner member
Material
Plastic tetrafluoroethylene race liner
Material
Steel inner member
Material
Steel outer race member
Material Specification
369a7951-7, 02731 mfr ref single material response race liner
Material Specification
Fed-std 66 federal standard single material response inner member
Material Specification
Fed-std 66 federal standard single material response outer race member
Surface Treatment
Chromium inner member
Surface Treatment Specification
369a7951-7, 02731 mfr ref single treatment response inner member
Style Designator
With insert and/or liner
NSN
3120-00-851-5704
Part Number
KR4-CNB
Description
Bearing,plain,self-aligning
CAGE
50632

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.

Part KR4-CNB NSN 3120-00-851-5704

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13208
FIIG:
A045A0
Concept No.:
App. Key:
B
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482300040
  • SITC: 74630
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Spherical roller bearings, single row

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