Model: 21421

Tapered Roller Bearing

Properties:

Overall Width
1.5625 inches
Bore Diameter
3.7500 inches
Overall Outside Diameter
6.0000 inches
Backface Corner Radius
0.1250 inches
Standout Width
0.3750 inches
Cone Corner Radius
0.1400 inches
Cone Width
1.4300 inches
Cup Width
1.1875 inches
Standard Tolerance Designation
Afbma class 2
Material
Steel comp e52100 cup or steel comp 4320 cup or steel comp 4620 cup or steel comp 8620 cup
Material
Steel comp e52100 cone or steel comp 4320 cone or steel comp 4620 cone or steel comp 8620 cone
Material
Steel comp e52100 roller or steel comp 4320 roller or steel comp 4620 roller or steel comp 8620 roller
Material
Steel retainer
Material Specification
66 federal standard 1st material response cone or qq-s-624 federal specification 2nd material response cone
Material Specification
66 federal standard 1st material response cup or qq-s-624 federal specification 2nd material response cup
Material Specification
66 federal standard 1st material response roller or qq-s-624 federal specification 2nd material response roller
Style Designator
Straight bore, normal angle
NSN
3110-00-100-4221
Part Number
21421
Description
Bearing,roller,tapered
CAGE
62934

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 21421 NSN 3110-00-100-4221

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:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
5.7000lbs
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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