Model: 21-427-3

Duplex Ball Bearing

Special Features:

Hwith inner and outer ring spacer, radial runout assembled 0.0020 in. T.I.R., axial runout 0.0010 in. R.I.R., starting torque under radial load of 15000 lb equals 304 in. Lb, stating torque under thrust load of 8870 lb equals 240 in. Lb, all dimensions apply at 68 degrees f, dimension 2.6250 in. Make the width of inner race spacer such that each bearing of the match pair will be preloaded axiaaly 0.0005 in. When assembled in machine, over 25 degrees angularity

Properties:

Overall Width
Between 1.9900 inches and 2.0000 inches
Bore Diameter
Between 11.0000 inches and 11.0005 inches
Overall Outside Diameter
Between 13.0000 inches and 13.0005 inches
Lubrication Material
Grease
Surface Finish
Ground
Retainer Fabrication Method
Machined
Load Direction
Angular
Bearing Preload Designation
Light
Lubrication Material Specification
Mil-l-15719 military specification single material response
Material
Copper alloy retainer
Material
Steel ball
Material
Steel inner ring
Material
Steel outer ring
Style Designator
92b counterbored outer rings, non-separable, back to back mounting
Style Designator
Counterbored outer rings, non-separable, back to back mounting
NSN
3110-00-723-9429
Part Number
21-427-3
Description
Bearing,ball,duplex
CAGE

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Part 21-427-3 NSN 3110-00-723-9429

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
30213
FIIG:
A044A0
Concept No.:
App. Key:
E
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:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
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

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this duplex ball bearing (NSN 3110-00-723-9429) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
Schedule B and Export
  • Schedule B: 8482105068
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Ball bearings, nesoi

Highest Rated Parts
Recently Purchased Parts
Hot Parts