Duplex Ball Bearing

SB1056-2

SB1056-2
(NSN) National Stock Number
3110-00-018-7204
Federal Supply Classification
3110 Unmounted Antifriction Bearings
Item Name Code
30213
Schedule B Code
8482105068
Summary

26.00 millimeters nominal overall width, 2.1633 inches nominal bore diameter, 80.00 millimeters nominal overall outside diameter, ground surface finish, machined retainer fabrication method, angular load direction

DAC HCC DMIL RNCC
1 - - 1
RNVC SADC MSDS RNAAC
2 - - KE
Identification

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.

INC FIIG Concept Condition
30213 A044A0 - 1
Specifications
Overall Width
26.00 millimeters nominal
Details An overall measurement taken at right angles to the length of an item,in distinction from thickness.
Bore Diameter
2.1633 inches nominal
Details The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
Overall Outside Diameter
80.00 millimeters nominal
Details The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.
Surface Finish
ground
Details An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.
Retainer Fabrication Method
machined
Details The means used in manufacturing the retainer.
Load Direction
angular
Details The direction of load with respect to the shaft axis.
Internal Clearance
0.0028 inches minimum radial and 0.0033 inches maximum radial
Details The clearance between the bearing rings and the rolling elements.
Standard Tolerance Designation
abec no.3
Details The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.
Special Features
first radial clearance w/10 lb gage,second radial clearance w/11 lb gage load,rings magnaflux 100 pct per ams 2640,etch v on outside of both outer rings when mounted face to face
Details Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.
Material
copper alloy retainer
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel ball
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel inner ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel outer ring
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Style Designator
counterbored outer rings, non-separable, face to face mounting
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
3M9311WI2MBRDUE9655 21335 5 - 5 9 - KE
1911RD401F 38443 5 - 5 1 - KE
SB1056-2 38443 5 - 3 2 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
58860 - P -
RVC WCC TCC SHC
- 742 Z 9

Certified Supplier

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Manufacturer
SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP
CAGE: 78286
STRATFORD , CT , 06614-1378
UNITED STATES
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FAQs
Frequently asked questions for NSN 3110-00-018-7204
What is the NIIN of the NSN 3110-00-018-7204?
The National Item Identification Number (NIIN) of the NSN 3110-00-018-7204 is 00-018-7204
When the NSN 3110-00-018-7204 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Tue, Apr 25, 1967
Does the NSN 3110-00-018-7204 contain any precious metals?
Type/content is unknown
Does the NSN 3110-00-018-7204 contain any hazardous material?
No data in HMIRS

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