Polymer and Composite  Bearing Solutions for Automotive Components

How engineered polymer and composite bearings improve performance, reduce maintenance, and support reliable motion in modern automotive designs.

As vehicle manufacturers seek to reduce weight, simplify assemblies and improve driver experience, precision polymer and composite bearings are increasingly replacing traditional metal alternatives in critical automotive applications. BNL has spent more than 25 years custom-engineering bearing solutions that deliver reliable performance in steering systems, interior controls, and other motion-critical components.

Combining decades of bearing expertise with application-specific engineering, BNL develops precision polymer and composite radial ball bearings that provide smooth, reliable rotational performance while meeting the increasingly demanding requirements of modern vehicle platforms. The company’s custom-engineered solutions are already supporting steering systems, interior controls and numerous other automotive applications where precision, durability and consistent performance are essential.

Engineering Better Bearing Solutions

Rather than supplying standard products, BNL engineers every bearing solution around the customer’s application, performance objectives and manufacturing requirements. Working closely with OEMs and Tier 1 suppliers, its engineering teams combine advanced bearing design expertise with extensive polymer materials knowledge to develop solutions that frequently outperform traditional steel alternatives in demanding automotive environments.

This collaborative approach has enabled BNL to establish long-term relationships with global vehicle manufacturers, with many bearing systems now demonstrating more than 25 years of proven field performance. From steering column bearings to rotary climate control interfaces, the company’s solutions are engineered to deliver precise movement, tuned haptics, smooth operation and long-term reliability.

Supporting this development process is BNL’s component teardown and application analysis service. By evaluating existing assemblies in detail, engineers can identify opportunities to simplify designs, improve performance, reduce weight and lower overall system costs. In many applications, traditional steel bearings are specified to performance levels that exceed the actual demands of the system. Precision polymer and composite bearings can provide a lighter, lower-friction alternative that reduces noise, eliminates the need for lubrication, simplifies assembly and lowers overall costs without compromising performance.

Performance in Steering Systems

This philosophy is demonstrated particularly well in steering column applications, where BNL has developed a range of custom radial ball bearings to satisfy demanding functional, assembly and durability requirements while improving manufacturing efficiency.

For one steering column application, BNL replaced a conventional steel bearing assembly with a lightweight, precision-engineered bearing designed to meet stringent OEM requirements for load capacity, thermal stability and assembly performance. Integrated crush ribs and compliant retention features accommodated manufacturing tolerances and compensated for assembly variation, while carefully controlled internal clearance delivered smooth, consistent operation across a wide operating temperature range. Optimised clip geometry and advanced polymer material selection enabled the bearing to withstand extraction forces exceeding 2,000 N and anti-theft test loads of 12,000 N radial force, creating a robust solution that satisfied both performance and manufacturing objectives.

In another steering column programme, BNL re-engineered an existing bearing design to satisfy the increased anti-theft load requirements of a new vehicle platform without sacrificing assembly performance or rotational efficiency. Using finite element analysis (FEA), advanced polymer material selection and strategically positioned reinforcing ribs, BNL developed a bearing capable of withstanding radial loads approaching 11 kN, exceeding the performance of comparable all-steel designs. A redesigned flange, double-row ball bearing architecture and integrated housing features further increased structural rigidity while reducing weight and rotational torque, delivering a high-performance solution optimised for both vehicle operation and high-volume manufacture.

Engineering the Driver Experience

BNL’s expertise extends beyond rotational support to the engineering of driver interaction. Modern vehicle interiors rely heavily on tactile feedback, and bearing design plays a significant role in determining the feel, sound and quality of controls that drivers use every day.

For one cockpit design programme, BNL engineered a custom bearing assembly featuring tunable rotational torque, integrated spring features and moulded detents to create a distinctive haptic response for a rotary climate control interface. Each design was carefully optimised to achieve the customer’s preferred operating feel, from smooth, low-torque rotation to a more pronounced tactile click.

Rather than relying on complex multi-component assemblies, BNL integrated multiple functions into a single precision-moulded component. Depending on the application, push-slide mechanisms, optical sensor interfaces, photo-interrupter fingers and display location features could all be incorporated directly into the bearing assembly. This integrated approach reduced component count, improved positional stability, minimised operational wobble and simplified assembly while providing greater design flexibility.

The company’s modular climate control bearing platform can be adapted to suit a wide range of OEM requirements, enabling engineers to tailor haptic performance, torque characteristics and integrated functionality while reducing weight, complexity and overall system cost.

Whether developing a completely new product or optimising an existing design, BNL works alongside customers from concept through to production to create bearing solutions that balance performance, manufacturability and long-term reliability. By combining specialist bearing expertise, advanced polymer materials knowledge and collaborative engineering, BNL continues to help automotive manufacturers solve increasingly complex motion challenges with lighter, smarter and more efficient bearing solutions.

Give BNL the Automotive Motion Challenge. We’ll Engineer the Solution.