2180631

2180631 Roller Cylindrical Bearing

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Quality Commitment

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Datasheet. 2180631 specification

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

1.2290in. and 1.2300in.

Bore Diameter
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

3.7399in. and 3.7402in.

Overall Outside Diameter
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

5.4331in. and 5.4336in.

Surface Finish
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.

ground

Bore Shape
The physical configuration of the bore.

straight

Locating Feature
The ability of the bearing to provide freedom for axial movement of the shaft relative to the housing.

nonlocating

Internal Clearance
The clearance between the bearing rings and the rolling elements.

0.0018in. bias megawatts and 0.0023in. angular megawatts

Standard Tolerance Designation
The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.

rbec no.5

Special Features
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.

silver plate cage per ams 2412 0.001-0.002 thk on land riding surfaces and roller pockets. bake at 475-500F for 2 hrs to check for bond

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel comp 4340 retainer

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel inner ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel outer ring

Material
The chemical compound or mechanical mixture properties of which the item is fabricated.

steel roller

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

PWA-725, 97497 mfr ref 1st material response outer ring

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

PWA-725, 97497 mfr ref 2nd material response inner ring

Material Document And Classification
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.

PWA-725, 97497 mfr ref 3rd material response roller

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

252h single row, TWO-Direction locating, two lip inner ring, two lip outer ring, separable

Answers.

What quantity is this sold in?

1EA

What is the style?

252h single row, two-direction locating, two lip inner ring, two lip outer ring, separable

What material is the roller cylindrical bearing made of ?

Steel roller

What material is the roller cylindrical bearing made of ?

Steel outer ring

What material is the roller cylindrical bearing made of ?

Steel inner ring

What material is the roller cylindrical bearing made of ?

Steel comp 4340 retainer

What is the overall width?

1.2290 inches minimum and 1.2300 inches maximum

What is the NSN for 2180631?

3110-00-182-8078

How is this classified for shipping?

Schedule B number: 8482500000
nmfc 114820
Other cylindrical roller bearings

What's the federal classification of 2180631?

FSC 3110 ⁓ Bearings, antifriction, unmounted

Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.

Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)

NSN 3110-00-182-8078 BEARING,ROLLER,CYLINDRICAL

252h single row, two-direction locating, two lip inner ring, two lip outer ring, separable silver plate cage per ams 2412 0.001-0.002 thk on land riding surfaces 3.7399" bore diameter 1.2290" overall width

NIIN
001828078
NIIN Date
06/29/70
Schedule B
8482500000 
Name Code
00015
FIIG
A044A0
Item Weight
3.200lbs
Item Dimensions
--
QUP
Historical Price
$3,981.00 EA
DEMIL / ITAR
USML/ITAR controlled item (Code: D)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Contains silver
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. 2180573 Cage 77445
2. 654225 Cage 77445
3. 654223 Cage 77445
4. 654224 Cage 77445

Major End Users Countries and entities

  • - Department of The Navy 
  • - Department of The Air Force 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
77.5
Special Cargo
No special type of cargo code applicable 
Air Freight (Minimum cargo door size required)
Shipment is not a consolidation and does not exceed 84 inches in any dimension. 
Customs Requirement Classification
Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft 
Commodity (for shipments via water)
Bearings 
NMFC (national motor freight code)
114820 BEARINGS/BUSHINGS NOI BALL/ROLLER 
UFC (universal freight code)
58860 

Similar by Design Other bearings with similar characteristics

Nothing similar to this part number was found in our inventory

2180631 / Bearing,roller,cylindricalWhat is the formal definition of this item?

A nonadjustable roller bearing consisting of a single or multiple-row of hardened cylindrical rollers and a retainer used with or without inner or oute r rings. excludes bearing, roller, airframe.