AMES A-12-18-15 12x18x15 mm - Sintered Bronze Bushing

AMES A-12-18-15 12x18x15 mm - Sintered Bronze Plain Bearing Bushing

AMES A-12-18-15 is a cylindrical, self-lubricating plain bearing bushing made from sintered bronze, with nominal dimensions of 12x18x15 mm. It belongs to the AMES A series and features a 12 mm bore diameter, 18 mm outside diameter and 15 mm length. Its porous structure retains lubricating oil, allowing lubrication of the sliding contact between the shaft and bushing. This is a flangeless sleeve bearing, not a rolling bearing.

Technical Specifications - AMES A-12-18-15

The designation identifies the nominal dimensions and cylindrical construction. Specific permissible loads, sliding speeds, operating temperatures, dimensional tolerances and lubricant characteristics must be established from the applicable AMES material and product documentation.

These parameters should not be assumed from another bushing with similar dimensions.

What Does AMES A-12-18-15 Mean?

The designation A-12-18-15 identifies the bushing design and its three principal dimensions.

A - Cylindrical Bushing Series

The letter A identifies a cylindrical sleeve bushing without a flange.

This construction provides a plain bearing surface within a compact cylindrical housing.

Unlike flanged bushings, the A series does not incorporate an integral flange for axial positioning or thrust support.

12 - Bore Diameter

The nominal internal diameter is 12 mm.

This is the sliding surface intended to operate against a suitably selected shaft.

18 - Outside Diameter

The nominal outside diameter is 18 mm.

This dimension is important when selecting the housing bore and mounting interference.

15 - Bushing Length

The nominal bushing length is 15 mm.

This dimension determines the axial length of the sliding contact surface.

Therefore, AMES A-12-18-15 identifies a flangeless cylindrical sleeve bushing with nominal dimensions of 12x18x15 mm.

The designation does not include separate suffixes specifying internal clearance, precision class or sealing configuration.

Construction of AMES A-12-18-15

Porous Sintered Bronze Material

The bushing is manufactured from sintered bronze, a material produced by compacting and sintering metal powder.

The manufacturing process creates a network of microscopic pores within the material.

These pores can retain lubricating oil, allowing the bushing to act as both a sliding bearing surface and a lubricant reservoir.

Unlike a solid bronze bushing, the sintered structure supports oil retention throughout the material.

Cylindrical Sliding Surface

The internal cylindrical surface operates directly against the shaft.

During operation, relative motion takes place through sliding contact rather than rolling contact.

There are no balls, rollers or cages inside the bushing.

The quality of the shaft surface, operating clearance and lubrication conditions influence friction, wear and service life.

Flangeless Construction

AMES A-12-18-15 has a straight cylindrical body without an integral flange.

Its nominal outside diameter remains 18 mm along the cylindrical body, apart from any manufacturing edge features.

This construction is intended primarily for radial shaft support.

The bushing should not be treated as a flanged thrust bearing or as an independent axial locating component.

15 mm Bearing Length

The nominal length is 15 mm.

Bearing length affects the projected contact area and average surface pressure under radial loading.

A longer bushing may provide a larger contact area, but it is not automatically interchangeable with a shorter version.

The available installation space and shaft alignment must also be considered.

How Does a Self-Lubricating Sintered Bronze Bushing Work?

AMES A-12-18-15 uses a porous bronze structure capable of retaining lubricating oil.

During operation, temperature changes and sliding motion can promote the movement of oil toward the contact surface between the shaft and bushing.

Under suitable operating conditions, the lubricant forms a film that reduces direct metal-to-metal contact.

When the mechanism stops, some of the oil can return to the porous material through capillary action.

This lubrication principle can reduce the need for conventional periodic relubrication in appropriately designed applications.

However, self-lubricating does not mean unlimited operation without maintenance or lubrication.

The operating conditions must remain compatible with the bushing material, lubricant and shaft arrangement.

Radial Load Support and Bearing Contact Area

AMES A-12-18-15 is designed primarily to support radial loads.

Radial forces are transmitted from the shaft through the internal sliding surface to the bushing and surrounding housing.

For the nominal dimensions of 12x18x15 mm, the projected bearing area is calculated as:

The nominal projected bearing area is therefore 180 mm2.

This geometric value is used when calculating average bearing pressure.

For a radial load F, the average projected bearing pressure can be estimated using:

This calculation does not establish the maximum permissible load.

Actual operating suitability depends on the manufacturer's permissible pressure, sliding speed, lubrication conditions, temperature and other application-specific factors.

Because the bushing has no flange, it is not intended to provide significant axial thrust support.

AMES A-12-18-15 vs Other Bushing Dimensions

Cylindrical sintered bronze bushings are available in different lengths and diameters.

The following table illustrates the dimensional differences between nominal 12 mm bore, 18 mm outside diameter bushing sizes.

The other sizes are dimensional comparison examples, not confirmed AMES catalogue references.

Although these sizes share the same nominal bore and outside diameters, their lengths differ.

Changing the length affects the projected bearing area, average surface pressure and required mounting space.

A shorter or longer bushing should not replace AMES A-12-18-15 without checking the complete bearing arrangement.

Alternative Designations and Search References

Natural written variations of the same product designation include:

• AMES A-12-18-15

• A-12-18-15 AMES

• AMES A 12 18 15

• A12-18-15

• Sintered bronze bushing 12x18x15 mm

• Bronze sleeve bearing 12x18x15 mm

• Flangeless bronze bushing 12x18x15 mm

These references help identify the product using its manufacturer designation, dimensions and construction.

Similar bushings from other manufacturers may use comparable dimensional designations.

However, matching nominal dimensions do not automatically establish identical material properties, tolerances, lubricant specifications or complete interchangeability.

No unverified OEM or manufacturer cross-reference numbers are assigned to this product.

AMES A-12-18-15 vs Flanged Bronze Bushings

The principal difference between a cylindrical sleeve bushing and a flanged bushing is the presence of an integral flange.

A flanged bushing may be suitable when the mechanical arrangement requires a separate axial contact surface.

However, the flange dimensions, material characteristics and permissible axial loading must be verified.

AMES A-12-18-15 is a flangeless design and should not be described as a flanged bearing.

Selection and Interchangeability

Before purchasing AMES A-12-18-15, verify the following technical requirements.

1. Shaft Diameter

The nominal bushing bore is 12 mm.

The shaft diameter and tolerance must provide the required operating clearance.

2. Housing Bore

The nominal outside diameter is 18 mm.

The housing bore must be compatible with the recommended mounting interference.

3. Bushing Length

The nominal length is 15 mm.

Verify that the available installation space and shaft support requirements are compatible with this dimension.

4. Material

Confirm that sintered bronze is suitable for the application.

Different bronze compositions and sintering processes can produce different operating characteristics.

5. Lubrication

Check whether the bushing is supplied oil-impregnated and whether its lubricant is compatible with the operating environment.

The lubricant type should not be assumed without manufacturer documentation.

6. Radial Load

Calculate the expected average bearing pressure using the radial load and projected bearing area.

Compare the result with the permissible values for the specific AMES material.

7. Sliding Speed

Consider the relative sliding speed between the shaft and bushing.

The operating speed must remain within the limits of the selected bearing material and lubrication system.

8. Shaft Surface

Check shaft hardness, surface finish, roundness and alignment according to the application requirements.

9. Operating Temperature

Confirm that the expected temperature is compatible with the bearing material and retained lubricant.

10. Mounting Conditions

Verify the recommended interference fit and the resulting bore dimensions after installation.

Important: Two bushings with identical nominal dimensions of 12x18x15 mm are not necessarily technically interchangeable.

Typical Applications of Sintered Bronze Sleeve Bearings

Cylindrical sintered bronze bushings are used in rotating and oscillating mechanisms requiring compact radial shaft support.

Typical applications for this bearing category include:

• Small rotating shaft assemblies.

• Electromechanical mechanisms.

• Industrial motion systems.

• Compact drive mechanisms.

• Mechanical assemblies requiring a separate sliding bearing surface.

These examples describe general applications of sintered bronze sleeve bearings.

They do not represent verified OEM applications for the specific AMES A-12-18-15 part number.

Suitability for a particular machine must be established from the equipment design and operating conditions.

Installation and Maintenance

Cleanliness Before Installation

Clean the housing bore, shaft and bushing before assembly.

Remove dirt, metal particles and other contaminants that could damage the sliding surface.

Correct Interference Fit

Check the recommended housing fit before pressing the bushing into place.

An incorrect interference fit can affect retention and the final internal diameter.

Applying Mounting Force

Apply mounting force evenly using a suitable installation tool that supports the bushing end face.

Avoid misalignment, excessive force and direct impact that could damage the porous material.

Checking Bore Diameter After Installation

Press fitting can reduce the internal diameter of the bushing.

Verify the installed bore and operating clearance before putting the assembly into service.

Protecting the Porous Structure

Avoid unnecessary machining or treatments that could close the pores of the sintered bronze.

Any additional finishing operation should be compatible with the manufacturer's recommendations.

Lubrication

Use lubricants compatible with the bushing material and its existing oil impregnation.

Do not assume that all sintered bronze bushings use the same lubricant.

Storage

Store the bushing in a clean, dry environment.

Protect it from contamination, corrosion and unnecessary loss of impregnating oil.

Frequently Asked Questions - AMES A-12-18-15

What are the dimensions of AMES A-12-18-15?

AMES A-12-18-15 has a nominal bore diameter of 12 mm, outside diameter of 18 mm and length of 15 mm. Its dimensions are 12x18x15 mm.

Is AMES A-12-18-15 a ball bearing?

No. It is a cylindrical plain bearing bushing made from sintered bronze. It does not contain balls, rollers or a cage.

Does AMES A-12-18-15 have a flange?

No. It is a flangeless cylindrical sleeve bushing. The A designation identifies the cylindrical design.

What does the A designation mean?

The A designation identifies the cylindrical bushing series without an integral flange.

Is AMES A-12-18-15 self-lubricating?

Yes. Its porous sintered bronze structure can retain lubricating oil and supply it to the sliding surface during operation.

Can it be used with a 12 mm shaft?

The nominal bore diameter is 12 mm. However, the shaft tolerance and final installed bushing diameter must be checked to obtain the correct operating clearance.

Does the bushing require additional lubrication?

Oil-impregnated sintered bronze bushings can operate without periodic relubrication under suitable conditions. Additional lubrication requirements depend on the application and manufacturer recommendations.

Can another 12x18x15 mm bronze bushing replace AMES A-12-18-15?

Possibly, but interchangeability must be verified. Compare dimensional tolerances, material composition, lubrication characteristics and permissible operating conditions.

AMES A-12-18-15 - Key Technical Information

AMES A-12-18-15 is a flangeless cylindrical plain bearing bushing made from sintered bronze, with dimensions of 12x18x15 mm. Its porous structure retains lubricating oil and supports self-lubricating operation. Designed primarily for radial shaft support, it operates through sliding contact and contains no rolling elements or cage.

AMES A-12-18-15 at simmering.pl

AMES A-12-18-15 can be identified and ordered using its complete manufacturer designation through simmering.pl.

Based in Lublin, Poland, simmering.pl supplies industrial bearings, plain bearing bushings, bearing components and sealing solutions to maintenance departments, engineering teams, technical purchasing departments and international B2B customers.

Our warehouse and order processing operations are located in Poland. We support international customers with technical product identification, stock inquiries and worldwide shipping options.