Model: 28580-28521 AND 18790-18720

Tapered Roller Bearing

Special Features:

Matched set of two bearing of different od and width with cone spacer only, no cup spacer; smallest bearing 3.6250 in. Diameter od, 1.0000 in. Cone width, 0.7813 in cup width, 0.9688 bearing width; 2.1635 in. Max cone spacer width

Properties:

Overall Width
3.8268 inches
Bore Diameter
2.0000 inches
Overall Outside Diameter
3.6250 inches
Backface Corner Radius
0.0310 inches
Standout Width
0.1875 inches
Cone Corner Radius
0.1400 inches
Cone Width
3.8268 inches
Cup Width
3.4831 inches
Retainer Fabrication Method
Pressed
Standard Tolerance Designation
Afbma class 2
Material
Steel
Style Designator
Straight bore, single cups, single cones cup and cone spacers
Specification Data
84955-k671414 manufacturers source control
NSN
3110-00-555-3662
Part Number
28580-28521 AND 18790-18720
Description
Bearing,roller,tapered
CAGE
60038

A cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes bearing, roller, thrust.

Part 28580-28521 AND 18790-18720 NSN 3110-00-555-3662

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00021
FIIG:
A044A0
Concept No.:
App. Key:
A
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:
F

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.4000lbs
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: 8482200030
  • SITC: 74620
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Tapered roller bearings, cup and cone assemblies entered as a set, wheel hub units, other than flanged

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