Model: T557

Annular Ball Bearing

Special Features:

7 to 8 drops of specified lubricant from a no. 27 needle

Properties:

Overall Width
Between 0.2700 inches and 0.2720 inches
Bore Diameter
Between 2.4997 inches and 2.5000 inches
Overall Outside Diameter
Between 2.9997 inches and 3.0000 inches
Lubrication Material
Oil
Surface Finish
Ground
Retainer Fabrication Method
Machined
Shield Quantity
2
Load Direction
Radial
Bore Shape
Straight
Internal Clearance
0.0012 inches radial and 0.0016 inches radial
Standard Tolerance Designation
Abec no. 5t
Lubrication Material Specification
Mil-l-6085 military specification single material response
Style Designator
Non-loading groove, non-separable
NSN
3110-01-102-1923
Part Number
T557
Description
Bearing,ball,annular
CAGE
40920

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.

Part T557 NSN 3110-01-102-1923

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00014
FIIG:
A044A0
Concept No.:
App. Key:
C
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:
0.2000lbs
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:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482105028
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Angular contact ball bearings, nesoi

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