Washers
Bearing Cone Washer
Accurate Fastners supplies Bearing Cone Washers for applications requiring conical seating surfaces and load distribution in fastening and bearing assemblies. These washers feature a tapered, conical profile designed to provide self-aligning contact surfaces and to compensate for angular misalignment in mechanical assemblies. Specifications, material grades and dimensions require confirmation with our sales team.
- Standard
- —
- Grades
- On enquiry
- Size
- On enquiry
- Length
- —
Verification note: Specifications, material grades and dimensions require confirmation with sales team.
Overview
What is the Bearing Cone Washer?
A Bearing Cone Washer is a specialised washer with a conical or tapered profile, distinguished from flat washers by its angled seating surface. The conical geometry allows the washer to accommodate slight angular misalignment between mating surfaces, providing a more uniform load distribution across the contact area compared with a flat washer under off-axis loading.
In bearing applications, cone washers are often used to seat bearing housings or mounting flanges where a conical interface is required. The taper angle and seating diameter are critical dimensions that must match the corresponding mating component to function correctly. Unlike spring washers, which introduce a preload force through elastic deformation, a bearing cone washer primarily functions as a geometric seating element rather than a spring device.
Accurate Fastners can supply Bearing Cone Washers based on customer requirements. Because this product type varies significantly in dimensions, taper angles and material specifications depending on the application, confirmed specifications are required before quotation. Customers should provide detailed drawings or specify the bearing or equipment manufacturer's part number to ensure compatibility.
In Depth
Product description
Design and Geometry
The defining characteristic of a Bearing Cone Washer is its conical profile, where one face of the washer is tapered at a specific angle relative to the flat opposing face. The conical face may seat against a matching tapered surface on a bearing housing, flange or mounting component, while the flat face typically bears against a nut or bolt head. This geometry allows the assembly to self-align to some degree, reducing stress concentrations that would occur with a flat washer under angular misalignment.
Key geometric parameters include the outer diameter, inner diameter, taper angle, thickness at the thin edge and thickness at the thick edge. These dimensions must be matched to the mating components to achieve the correct seating pressure and load distribution. In some designs, the cone washer may incorporate a slight spring effect through its taper geometry, but this varies by application and should not be assumed without verification.
Function in an Assembly
When installed between a bolt head or nut and a tapered mating surface, a Bearing Cone Washer distributes clamping load across the conical interface rather than concentrating it at the edges. This can be particularly valuable in bearing applications where uniform contact pressure helps maintain bearing alignment and reduce wear on raceways or seating surfaces.
The conical geometry also provides a degree of compensation for manufacturing tolerances and assembly misalignment. As the bolt is tightened, the cone washer can tilt slightly to conform to the mating surface, ensuring full contact is achieved even if the assembly is not perfectly aligned. However, the angular compensation range is limited by the taper angle and material stiffness; significant misalignment may still require design-level corrections.
How Bearing Cone Washers Differ from Other Washer Types
Unlike flat washers such as DIN 125, which have parallel faces and function primarily as load-bearing spacers, a Bearing Cone Washer has a non-parallel geometry that introduces an angular seating relationship. This makes it unsuitable for applications requiring a flat bearing surface but valuable where a conical interface is specified by the equipment or bearing manufacturer.
Compared with spring washers such as DIN 127 split washers or DIN 6798 star washers, a cone washer does not rely on elastic deformation to provide locking action. Its primary function is geometric seating rather than vibration resistance. Some cone washer designs may provide a degree of preload through taper engagement, but this varies by specific application and should not be assumed without confirmation from the equipment manufacturer.
Material & Grade
Material and grade information
Material grade availability for Bearing Cone Washers depends on the specific application and customer requirements. Stainless steel grades such as SS 304 or SS 316 may be specified where corrosion resistance is necessary, particularly in outdoor, marine or chemical-exposure environments. Carbon steel versions may be used in protected indoor applications where cost is a primary consideration.
Because Bearing Cone Washers are often application-specific rather than commodity items, the material selection should be aligned with the mating bearing or equipment manufacturer's recommendations. In some cases, hardness requirements or surface treatments may be specified to achieve the required seating performance. Accurate Fastners can advise on material options once the application requirements and mating component specifications are confirmed.
Grades shown are those documented for this product in the Accurate Fastners brochure. General material notes are guidance only; confirm grade selection for your environment.
Technical Data
Technical specifications
| Product type | Washer – Bearing Cone Washer |
|---|---|
| Material | To be confirmed on enquiry |
| Material grade | To be confirmed on enquiry |
| Nominal diameter / size | To be confirmed on enquiry |
| Head / form | Conical / Tapered |
Sizes
Available sizes
Sizes for this product are not documented in our brochure. Please share your required diameter, length and quantity and our team will confirm availability.
Individual sizes within the documented range, thread pitches and lengths are confirmed at quotation stage.
Applications
Industrial applications
Bearing Housings and Mounting Flanges
Cone washers are used in bearing assemblies where the housing or mounting flange incorporates a tapered seating surface. The washer ensures proper load transfer between the fastener and the bearing seat.
Pump and Motor Mounting
Rotating equipment such as pumps and motors may use cone washers in mounting arrangements where angular alignment between the mounting foot and the base plate must be accommodated.
Structural Framing Systems
Some modular framing systems use conical washers in connection points to provide self-aligning seating surfaces that compensate for minor fabrication or assembly tolerances.
Automotive and Machinery Components
Vehicle and industrial machinery applications may specify cone washers for suspension components, steering assemblies or other locations where conical seating is required by the OEM design.
Heavy Equipment and Earthmoving Machinery
Excavators, loaders and other heavy equipment may use cone washers in high-load connection points where the conical interface helps distribute stress across the bearing surface.
Features & Selection
Features and selection considerations
Design features
Conical Seating Profile
The tapered geometry provides a self-aligning seating surface that can accommodate minor angular misalignment and distribute load more uniformly than a flat washer under off-axis loading.
Application-Specific Design
Dimensions, taper angles and material specifications are determined by the mating bearing or equipment requirements, ensuring compatibility with the intended assembly.
Load Distribution
By spreading clamping load across a conical interface, the washer helps reduce stress concentrations at the edges of contact surfaces, which can extend service life in high-cycle applications.
Material Options
Stainless steel grades such as SS 304 or SS 316 can be supplied for corrosion-resistant applications, with carbon steel options available for indoor or protected environments.
Custom Specifications
Where standard catalog items do not meet the application requirements, Accurate Fastners can work with customer specifications to supply cone washers matching the required dimensions and material.
Before you order
Dimensions and Taper Angle
Confirm the outer diameter, inner diameter, taper angle and thickness requirements from the equipment or bearing manufacturer's documentation. These parameters must match the mating component to function correctly.
Material Grade
Select material grade based on the service environment. SS 304 is suitable for many general applications, while SS 316 is preferred for chloride-exposed or marine environments. Confirm if any hardness or surface treatment is specified.
Mating Component Compatibility
Verify that the cone washer specifications align with the bearing housing, mounting flange or other mating component. Provide the OEM part number or detailed drawing to ensure correct interchangeability.
Quantity and Lead Time
Because cone washers are often application-specific, lead times may vary depending on whether the item is stocked or requires custom manufacture. Confirm availability and delivery timelines when submitting your enquiry.
FAQs
Frequently asked questions
What is the difference between a Bearing Cone Washer and a flat washer?
A Bearing Cone Washer has a tapered, conical profile on one face, whereas a flat washer has parallel faces. The conical geometry provides a self-aligning seating surface and is used where a tapered interface is specified by the equipment or bearing manufacturer.
Does a Bearing Cone Washer provide spring action like a spring washer?
Not inherently. A cone washer's primary function is geometric seating rather than elastic deformation. Some designs may provide preload through taper engagement, but this varies by application and should not be assumed without verification.
What material grades are available for Bearing Cone Washers?
Material availability depends on the specific application. Stainless steel grades such as SS 304 and SS 316 can be supplied for corrosion-resistant applications. Carbon steel options may be available for indoor use. Confirm requirements with the sales team.
How do I determine the correct dimensions for a Bearing Cone Washer?
Refer to the equipment or bearing manufacturer's documentation for the required outer diameter, inner diameter, taper angle and thickness. If replacing an existing washer, measure the original or provide the OEM part number for identification.
Can Bearing Cone Washers be used with any bolt size?
The inner diameter must match the bolt size or stud diameter. The outer diameter, taper angle and thickness must also match the mating component. These parameters are application-specific and cannot be assumed from the bolt size alone.
How can I request a quotation for Bearing Cone Washers?
Please provide the required dimensions, taper angle, material grade, quantity and any applicable OEM part number or drawing. Submit this information via the website enquiry form, email to export@accuratefastners.com, or WhatsApp for a quotation.
Related Products
Complementary fasteners
Request a Quote
Request a quote for Bearing Cone Washer
Tell us the grade, diameter, length and quantity you need. Your enquiry will be pre-filled with this product name.