Model: MIL-B-81936

Self-aligning Plain Bearing

Properties:

Bore Diameter
Between 1.2495 inches and 1.2500 inches
Lubrication Material
Grease, mil-g-81322
Outer Member Outside Diameter
Between 2.3120 inches and 2.3125 inches
Outer Member Width
Between 0.9950 inches and 1.0000 inches
Inner Member Width
Between 1.2450 inches and 1.2500 inches
Static Radial Load Rating
152000 pounds
Hardness Rating
36.0 rockwell c outer race member and 37.0 rockwell c outer race member
Hardness Rating
238.0 rockwell c inner member
Lubrication Feature
Groove external outer member
Lubrication Feature
Groove internal inner member
Lubrication Feature
Groove internal outer member
Lubrication Feature
Perforation outer race member
Lubrication Feature
Perforation inner member
Material
Copper alloy 172 inner member or copper alloy 173 inner member
Material
Steel comp 630 outer race member
Style Designator
Without insert or liner with staking groove
NSN
3120-00-281-3062
Part Number
MIL-B-81936
Description
Bearing,plain,self-aligning
CAGE
81349

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 MIL-B-81936 NSN 3120-00-281-3062

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:
0.9000lbs
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:
114870
UFC:
58890
LTL:
77.5
LCL:
--
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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