Custom size bearings
Custom Size Bearings – Non-Standard Bearing Manufacturer in Taiwan
Standard bearings are available in many commonly used dimensions, but not every mechanical product can be designed around standard bearing sizes. When a product requires a special inner diameter, outer diameter, width, or overall configuration, custom size bearings can provide a practical solution for OEM manufacturers, machinery designers, and industrial buyers.
HSIAN JI BEARING CO., LTD. is a bearing manufacturer in Taiwan with experience in bearing development and manufacturing. Established in 1995, we provide a variety of bearing products, including ball bearings, plastic bearings, thrust bearings, stamped bearings, slide bearings, special bearings, and non-standard bearings.
In addition to existing bearing products, HSIAN JI can evaluate development according to customer requirements and samples. For customers requiring custom size bearings, special dimensions, or non-standard bearing configurations, drawings and physical samples can provide the basis for technical evaluation and product development.
What Are Custom Size Bearings?
Custom size bearings are bearings manufactured or developed with dimensions that differ from commonly available standard bearing sizes.
Standard bearings are produced according to established dimensional ranges, making them convenient for many mechanical applications. However, specialized products may have installation spaces or mechanical configurations that cannot accommodate conventional dimensions.
Customized dimensions may involve:
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Inner diameter
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Outer diameter
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Bearing width
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Overall height
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Shaft dimensions
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External dimensions
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Housing dimensions
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Mounting dimensions
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Special geometric features
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Application-specific configurations
The objective of custom size bearings is to develop a bearing that fits the mechanical system rather than requiring extensive changes to surrounding components.
Why Are Custom Bearing Sizes Needed?
Mechanical products are designed for many different purposes, and there is no single bearing size that can satisfy every application.
A compact OEM product may have very limited internal space. Existing equipment may use an unusual shaft diameter. A sliding mechanism may require a bearing with specific external dimensions. Older machinery may contain a bearing size that is no longer readily available.
Custom-size bearing development may be considered when:
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Standard bearing sizes do not fit
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A special shaft diameter is required
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Installation space is restricted
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A unique housing is used
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Existing equipment uses unusual dimensions
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A discontinued bearing requires replacement
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An OEM product has a unique mechanical structure
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A sample must be reproduced
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Standard bearings require too many design modifications
In these situations, developing a non-standard bearing may provide another option.
Custom Inner Diameter Bearings
The inner diameter is a critical dimension because it determines how the bearing fits onto a shaft or other mechanical component.
If the shaft dimension does not correspond to an available standard bearing, engineers may need to modify the shaft or consider a customized bearing.
A custom size bearing can be evaluated with an inner diameter developed around the customer's required shaft dimensions.
Customers should provide accurate shaft measurements as well as information about the installation method, surrounding components, and application.
Changing the inner diameter may affect other elements of the bearing design, so the complete product should be evaluated rather than considering one dimension independently.
Custom Outer Diameter Bearings
The outer diameter determines how a bearing fits into a housing, bracket, wheel, or other surrounding structure.
Products with restricted installation space or unique housings may require a non-standard outer diameter.
Custom outer diameter requirements can be evaluated according to the overall mechanical assembly.
Customers should provide the housing dimensions, available installation space, and other relevant information.
An assembly drawing can be particularly useful because it helps the manufacturer understand how the bearing interacts with surrounding components.
Custom Bearing Width and Overall Dimensions
Bearing width is another important consideration.
A standard bearing may have an acceptable inner and outer diameter but still be too wide or too narrow for the intended application.
In these situations, a customized width may be considered.
However, modifying bearing width can influence the complete bearing configuration. Therefore, custom size bearings should be evaluated as complete components rather than simply changing one measurement.
Providing all critical dimensions at the beginning of the project can help improve technical evaluation.
Custom Size Bearings Based on Engineering Drawings
Technical drawings are one of the most effective ways to communicate custom dimensional requirements.
A detailed 2D drawing can identify critical dimensions, geometry, and installation requirements. A 3D CAD model or assembly drawing can provide additional information about surrounding components.
Customers requesting custom-size bearings should provide:
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Inner diameter
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Outer diameter
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Width
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Overall dimensions
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Shaft dimensions
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Housing dimensions
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Installation space
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Technical drawing
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Application information
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Operating conditions
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Estimated quantities
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Special requirements
Complete dimensional information reduces uncertainty and allows the manufacturer to evaluate manufacturing feasibility more effectively.
Custom Size Bearings from Physical Samples
Sometimes an existing bearing needs to be replaced, but the original technical drawing is unavailable.
This situation is common with older machinery, discontinued products, imported equipment, and specialized OEM components.
A physical sample can provide an alternative starting point.
HSIAN JI can evaluate product development according to customer requirements and samples.
Customers should provide the original bearing together with any available information about its application, installation, operating conditions, and required quantity.
Sample-based development can be particularly useful for non-standard and special-size replacement bearings.
Custom Size Ball Bearings
Ball bearings are widely used in mechanical applications, but standard dimensions do not always match every product.
Custom-size ball bearing requirements may involve special inner diameters, outer diameters, widths, or external configurations.
Customers should provide detailed dimensional and application information so the bearing can be evaluated as part of the complete mechanical system.
For OEM products with unique dimensions, custom size bearings may provide greater design flexibility than restricting the entire product to conventional catalogue sizes.
Custom Size Plastic Bearings
Plastic bearings can be useful for applications where lightweight construction, corrosion resistance, low noise, or specific design characteristics are important.
HSIAN JI manufactures plastic bearing products and can evaluate custom dimensional requirements according to customer applications.
Dimensions, load, movement, operating environment, temperature, moisture, and installation conditions should be considered during product development.
Custom sizing can be especially useful when a plastic bearing must integrate directly into a specialized mechanical assembly.
Custom Size Thrust Bearings
Thrust bearings are primarily used to support axial loads.
When a standard thrust bearing cannot fit the available space, special dimensional requirements may need to be evaluated.
Customers should provide the required inner diameter, outer diameter, overall thickness, installation dimensions, axial load information, and operating conditions.
A technical drawing or existing sample can help communicate these requirements accurately.
Non-Standard and Special Size Bearings
Custom-size bearing development is closely related to non-standard bearing manufacturing.
A non-standard bearing is generally a bearing whose dimensions, configuration, or structure differs from commonly available catalogue products.
A special bearing may also incorporate unique characteristics developed for a particular application.
These bearing solutions may be useful for:
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Industrial machinery
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Conveyor equipment
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Furniture hardware
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Sliding systems
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Doors and windows
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Medical equipment
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Office equipment
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Kitchen equipment
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Fitness equipment
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Sporting goods
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Transportation products
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Packaging equipment
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Other OEM applications
The correct dimensional solution depends on the requirements of each application.
From Custom Dimensions to Production
Developing custom size bearings involves more than providing a few measurements.
Depending on project complexity, the development process may include:
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Reviewing customer requirements
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Evaluating drawings or samples
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Confirming critical dimensions
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Understanding the application
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Evaluating manufacturing feasibility
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Developing samples or prototypes
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Dimensional inspection
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Testing and verification
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Trial production
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Mass production
Sample verification can be particularly important for non-standard sizes because it allows customers to confirm installation compatibility before volume production.
Quality Control for Custom Size Bearings
Dimensional consistency is essential for custom bearings.
Even small variations in critical dimensions may influence assembly, installation, movement, or overall product performance.
Quality management can include material inspection, process control, dimensional measurement, product inspection, testing, and final quality verification.
For customized products, approved drawings and samples can provide important references for production and inspection.
This helps maintain consistency when customers require repeat production.
Custom Size Bearing Manufacturer in Taiwan
Taiwan has a well-developed industrial manufacturing supply chain supporting machinery, hardware, metalworking, plastics, precision components, and OEM production.
HSIAN JI BEARING CO., LTD. has been involved in bearing development and manufacturing since 1995.
Our experience with ball bearings, plastic bearings, thrust bearings, stamped bearings, slide bearings, special bearings, and non-standard bearings provides a foundation for evaluating customized dimensional requirements.
If standard catalogue sizes cannot meet your application, contact HSIAN JI with your drawings, samples, dimensions, and production requirements.
We can evaluate your custom size bearings project and discuss an appropriate non-standard bearing solution.
Custom Size Bearings FAQ
1. What are custom size bearings?
Custom size bearings are bearings developed or manufactured with dimensions that differ from commonly available standard bearing sizes.
Customization may involve the inner diameter, outer diameter, width, overall dimensions, housing dimensions, mounting dimensions, or other application-specific measurements.
They are particularly useful when standard bearings cannot fit a product or mechanical assembly.
2. When do I need a custom size bearing?
You may need a custom-size bearing when an available standard bearing cannot meet your dimensional or installation requirements.
Common situations include unusual shaft sizes, restricted installation space, special housings, compact OEM products, replacement of discontinued bearings, and equipment using non-standard dimensions.
Custom development should normally be considered after determining that a suitable standard product is unavailable.
3. Can HSIAN JI manufacture bearings in custom sizes?
HSIAN JI can evaluate bearing development according to different customer requirements and samples.
Customers requiring special dimensions can provide technical drawings, physical samples, dimensional specifications, application information, and estimated quantities.
Manufacturing feasibility can then be evaluated according to the complete project requirements.
4. Which bearing dimensions can be customized?
Depending on the bearing design and manufacturing feasibility, dimensional requirements may involve:
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Inner diameter
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Outer diameter
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Width
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Overall height
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Shaft dimensions
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Housing dimensions
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External dimensions
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Mounting dimensions
Because these dimensions can influence one another, the entire bearing configuration should be evaluated rather than treating each measurement independently.
5. Can you make a bearing with a custom inner diameter?
Special inner diameter requirements can be evaluated.
This may be useful when a product uses a shaft size that does not correspond to commonly available standard bearings.
Customers should provide accurate shaft dimensions, bearing dimensions, installation information, and application requirements.
A technical drawing is recommended whenever possible.
6. Can you manufacture bearings with a custom outer diameter?
Custom outer diameter requirements can also be evaluated according to the bearing design.
This may be required when a bearing must fit into a special housing, wheel, bracket, or limited installation space.
Providing housing dimensions and an assembly drawing can help the manufacturer understand how the bearing fits into the complete product.
7. Can the width of a bearing be customized?
Special bearing width requirements can be evaluated.
A standard bearing may have the correct inner and outer diameter but an unsuitable width for the application.
However, changing the width may influence other aspects of the bearing design.
For this reason, the manufacturer should evaluate the complete configuration before determining whether the requested dimensions are feasible.
8. Can you manufacture custom size bearings from my drawing?
Customer drawings can provide the basis for evaluating a custom-size bearing project.
The drawing should clearly identify all critical dimensions and other technical requirements.
Customers should also provide information about the application, installation conditions, operating environment, and estimated production quantity.
9. Can you reproduce a custom bearing from a physical sample?
HSIAN JI can evaluate product development according to customer samples and requirements.
A physical sample can be particularly useful when an existing special bearing needs replacement but the original technical drawing is unavailable.
Customers should also provide information about how and where the bearing is used.
10. What information should I provide for custom size bearings?
Useful information includes:
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2D technical drawing
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3D CAD model if available
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Physical sample
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Inner diameter
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Outer diameter
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Width
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Shaft dimensions
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Housing dimensions
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Installation space
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Application
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Operating conditions
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Estimated quantity
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Special requirements
Complete information can make the technical evaluation more efficient.
11. What is the difference between custom size and standard bearings?
Standard bearings are manufactured in commonly used dimensions and configurations.
Custom size bearings are developed with special dimensions to meet a specific customer's requirements.
If a standard bearing meets the application, it is usually the simplest choice.
Custom sizing becomes useful when conventional dimensions cannot fit the product or when changing the surrounding mechanical design would be impractical.
12. Are custom size bearings considered non-standard bearings?
In most cases, a bearing manufactured with dimensions outside commonly available standard sizes can be described as a non-standard bearing.
"Custom size" emphasizes dimensional customization, while "non-standard bearing" is a broader term that can include differences in dimensions, structures, or configurations.
Therefore, many custom-size bearings are also non-standard bearings.
13. Can ball bearings be manufactured in custom sizes?
Custom ball bearing dimensions can be evaluated according to customer requirements and manufacturing feasibility.
Customers should provide the required inner diameter, outer diameter, width, installation dimensions, and application information.
Other factors such as load, movement, operating speed, and environmental conditions should also be considered.
14. Can plastic bearings be manufactured in custom sizes?
HSIAN JI manufactures plastic bearing products and can evaluate customized dimensional requirements.
Plastic bearing applications may require special dimensions to integrate with furniture, sliding mechanisms, machinery, or other OEM products.
The appropriate configuration should be evaluated according to dimensions as well as load, movement, temperature, and environmental conditions.
15. Can thrust bearings be made in non-standard sizes?
Special dimensional requirements for thrust bearings can be evaluated.
Customers should provide the required inner diameter, outer diameter, thickness, axial load information, installation conditions, and other technical requirements.
A drawing or physical sample can provide useful information for the initial evaluation.
16. Can custom size bearings replace obsolete bearings?
In some cases, custom manufacturing may provide a solution for obsolete or discontinued bearings.
If the original product is available, customers can provide a physical sample together with any drawings, dimensions, application information, and required quantities.
The manufacturer can then evaluate whether reproducing a suitable replacement is technically and commercially feasible.
17. Are prototypes available for custom size bearings?
Depending on the project, sample or prototype development may be used before mass production.
This stage can be particularly useful for custom size bearings because customers can verify critical dimensions and installation compatibility.
If dimensional changes are required, they can be evaluated before proceeding to volume production.
18. How do you ensure dimensional accuracy for custom bearings?
Quality management can include manufacturing process control, dimensional measurement, product inspection, testing, and final verification.
For customized products, approved drawings, specifications, and samples can provide the reference for production and inspection.
Clearly defining critical dimensions during the development stage is important for maintaining consistency in repeat orders.
19. Why source custom size bearings from Taiwan?
Taiwan has an established manufacturing ecosystem covering machinery, metalworking, plastics, hardware, precision components, and OEM production.
For international customers requiring special components, working with an experienced Taiwan manufacturer can provide access to product development and manufacturing resources.
For non-standard bearings, technical communication, dimensional consistency, manufacturing flexibility, and repeat production capabilities are particularly important.
20. Why choose HSIAN JI for custom size bearings?
HSIAN JI BEARING CO., LTD. has been involved in bearing development and manufacturing in Taiwan since 1995.
Our product range includes ball bearings, plastic bearings, thrust bearings, stamped bearings, slide bearings, special bearings, and non-standard bearings.
We can also evaluate development according to customer requirements and physical samples.
If you require custom size bearings for an OEM product, special mechanical design, obsolete component, or non-standard application, send HSIAN JI your technical drawings, physical samples, required dimensions, application information, and estimated quantities.
We can evaluate your project and discuss a suitable custom bearing solution.