SELF-LUBRICATING BEARINGS & BUSHINGS
Self-Lubricating, Oil-Impregnated Bronze Thrust Washers
Proform Powder Metal: Thrust Washers
Proform manufactures precision bronze thrust washers for OEMs, industrial distributors, and equipment manufacturers across a wide range of applications. Designed to manage axial loads while reducing friction between moving components, bronze thrust washers provide a simple, compact, and cost-effective bearing surface.
Our standard bronze thrust washers are manufactured using powder metallurgy and impregnated with SAE oil. The controlled porosity created during the powder metal manufacturing process allows lubricant to be stored within the component, helping provide self-lubricating performance during operation.
Alternative materials and lubricants may also be available depending on part design, operating conditions, and application requirements.
Whether you need a standard thrust washer or a custom component for a high-volume application, Proform has the manufacturing capacity and engineering expertise to support your program.
Our standard bronze sleeve bearings are manufactured using powder metallurgy and impregnated with SAE oil. The interconnected porosity created during the powder metal manufacturing process allows lubricant to be stored within the bearing itself, providing a continuous source of lubrication during operation.
Alternative materials and lubricants may also be available depending on part design, operating conditions, and application requirements.
Whether you need an existing standard size or a custom-engineered bearing for a high-volume application, Proform has the manufacturing capacity and engineering expertise to support your program.
Talk to a Proform solutions expert today
As the world’s largest manufacturer of powder metal bronze bearings and bushings, we support organizations ranging from global OEMs to regional distributors, MRO suppliers, and online industrial catalogs. Whether your business requires millions of production parts or reliable inventory for replacement components, Proform has the engineering expertise and manufacturing capacity to meet your needs.
What Is a Bronze Thrust Washer?
A bronze thrust washer is a flat, washer-shaped bearing designed to provide a low-friction surface between components subjected to axial loads.
In simple terms, a thrust washer helps control movement or forces that occur along the length of a shaft.
For example, when a rotating gear, pulley, or other component pushes against the side of a housing, a thrust washer can provide a durable bearing surface between the two components. This reduces direct metal-to-metal contact, friction, and wear.
Unlike a conventional washer used primarily for fastening or load distribution, a thrust washer functions as a bearing.
Bronze thrust washers are commonly selected because they combine a simple design with excellent wear resistance, compact dimensions, and self-lubricating capabilities.
Proform Part Portfolio
CLICK HERE to check out a gallery of standard and made-to-order bronze and iron components.
Common Bronze Thrust Washer Applications
Bronze thrust washers can be used wherever an assembly requires a compact, low-friction bearing surface for axial loading.
Common applications include:
- Electric motors
- Gearboxes
- Gear assemblies
- Automotive components
- Agricultural equipment
- Outdoor power equipment
- Home appliances
- Pumps
- Actuators
- Power tools
- Material handling equipment
- Industrial machinery
- Recreational vehicles
- Fans and blowers
Their compact profile makes thrust washers particularly useful in assemblies where space is limited and a conventional thrust bearing may be unnecessary or impractical.
Benefits of Proform's Bronze Thrust Washer
Self-Lubricating
The porous structure of powder metal bronze allows lubricating oil to be stored within the thrust washer, providing an internal source of lubrication during operation.
Compact Design
Thrust washers provide an effective bearing surface while requiring very little axial space within an assembly.
Reduced Friction & Wear
A bronze thrust washer creates a sacrificial bearing surface between moving components, helping reduce direct metal-to-metal contact and wear.
Reduced Maintenance
Oil impregnation can reduce or eliminate the need for routine lubrication in many applications.
High-Volume Cost Efficiency
Powder metallurgy is a near-net-shape manufacturing process capable of producing large quantities of highly repeatable components with minimal material waste and secondary machinin.
How Oil-Impregnated Thrust Washers Work
Powder metal bronze contains a network of microscopic pores created during the manufacturing process.
After sintering, these pores can be filled with lubricating oil. During operation, lubricant stored within the bronze structure helps create a low-friction interface between the thrust washer and the mating component.
- Self-lubricating operation
- Reduced friction
- Excellent wear resistance
- Reduced maintenance requirements
- Compact bearing design
- Quiet operation
- Long service life
- Cost-effective high-volume production
For applications where routine lubrication is difficult or undesirable, an oil-impregnated bronze thrust washer can provide a simple and reliable solution.
Bronze Thrust Washers vs. Standard Washers
Although they may look similar, a bronze thrust washer and a conventional washer serve very different purposes.
A standard washer is typically used with a fastener to distribute load, protect a surface, or help secure an assembly.
A thrust washer is a bearing component.
It is specifically designed to provide a low-friction wear surface between components experiencing axial movement or loading.
This distinction is important when selecting a washer for rotating equipment, motors, gear assemblies, and other mechanical applications.
Standard Bronze & SAE Oil Impregnation
Bronze with SAE oil impregnation is Proform’s standard thrust washer configuration and provides reliable performance across a broad range of industrial and OEM applications.
Powder metal bronze provides an effective combination of wear resistance, dimensional consistency, and lubricant retention.
The oil contained within the porous bronze structure provides an internal source of lubrication, helping reduce the need for external lubrication and ongoing maintenance.
For applications with unique operating requirements, alternative materials and lubricants may also be available.
Material & Lubrication Options
Load, speed, temperature, mating materials, operating environment, and duty cycle can all affect the performance requirements of a thrust washer.
Depending on the specific part and application, Proform can evaluate alternative:
- Powder metal materials
- Bronze compositions
- Lubricants
- Oil viscosities
- Specialty impregnation options
Our engineering team can help determine whether standard bronze with SAE oil impregnation is appropriate or whether an alternative solution should be considered.
Talk with Proform Engineering about your material and lubrication requirements.
Standard & Custom Bronze Thrust Washers
Proform supports both standard thrust washer requirements and custom high-volume applications.
Standard Thrust Washers
Our standard product offering provides proven dimensions for common industrial and mechanical applications.
Standard components provide an efficient sourcing option for distributors, maintenance operations, equipment manufacturers, and engineers designing around established dimensions.
Custom Thrust Washers
When a standard component does not meet the requirements of an application, Proform can work with your engineering team to develop a custom powder metal solution.
Custom programs may address:
- Inside and outside diameter
- Thickness
- Application-specific geometry
- Material requirements
- Lubrication requirements
- Performance requirements
- High-volume production needs
Thrust Washers: Engineering Considerations
Selecting the right thrust washer requires more than matching an inside diameter, outside diameter, and thickness.
Important application considerations can include:
- Axial load
- Rotational speed
- Operating temperature
- Mating surface material and finish
- Lubrication requirements
- Duty cycle
- Environmental exposure
- Available space
- Expected service life
Providing this information early in the design process allows Proform’s engineering team to better evaluate the appropriate thrust washer solution.
Why Proform?
Agricultural equipment manufacturers choose Proform because we combine engineering expertise with world-class manufacturing capabilities.
Our advantages include:
- World’s largest manufacturer of bronze powder metal bearings and bushings
- More than 200 million components produced annually
- Custom alloy development
- In-house tooling design
- High-volume OEM production
- Precision quality control
- Responsive engineering support
- Reliable North American manufacturing
Whether you’re developing next-generation agricultural machinery or improving an existing platform, Proform delivers dependable powder metal solutions built for demanding field conditions.
Whether you’re sourcing an existing bearing or developing a custom component for a new application, Proform provides the engineering expertise, manufacturing capacity, and consistent quality needed to support your program.