Active Load Retention Through Smart Geometry
A conical spring washer is shaped to flex under load, storing energy that maintains tension even as parts settle, relax, or expand with heat. That makes our washers ideal for assemblies where consistency and safety matter, from motors and gearboxes to structural frames and precision fixtures.
Where ordinary washers merely spread load, our conical geometry actively preserves it. The cone deflects slightly under tightening, then continues to push back as the joint experiences settling or movement, reducing the need for retorque. This simple, elegant mechanism safeguards threaded connections against micro-slip, improves torque retention, and supports consistent sealing pressure where gaskets and interfaces demand it.
If your application needs a different spring profile, our range also includes Curved Spring Washer options for gentle, progressive force, Wavy Spring Washer designs for space-saving elasticity, and Split Lockwashers for simple anti-rotation support in general fastening.
BN 711 Conical Spring Washers
Our BN 711 conical spring washers provide a repeatable spring force inside the joint, maintaining clamp load and compensating for thermal expansion or relaxation. Each washer is manufactured for dimensional stability and deflection accuracy, so you can specify a torque and trust the preload over the life of the assembly. In dynamic environments with frequent start–stop cycles, the BN 711 profile helps resist loosening without adding bulk, letting you keep designs compact and serviceable.
Built For Real-World Assemblies
From installation to long-term service, our washers are designed to be intuitive and dependable. Fit them under the nut or bolt head with the cone facing the joint as specified, tighten to the recommended torque, and the washer begins working immediately to stabilize the connection. Whether you’re clamping dissimilar materials, protecting sensitive components, or managing heat cycles, our conical spring washers add a quiet layer of insurance that keeps equipment performing to spec.
FAQs
What is a conical spring washer?
A conical spring washer is a washer formed into a cone to act like a compact spring inside the joint. When tightened, it deflects and stores energy that maintains clamp load as conditions change. This design helps keep fasteners secure under vibration, thermal cycling, and settling.
When to use conical spring washers?
Choose them when you need reliable preload retention without increasing the size of the fastener or adding complex hardware. They’re ideal for assemblies that see vibration, temperature changes, or material relaxation after initial tightening. Use them to reduce retorque intervals and protect joint integrity over time.
What are the benefits of conical spring washers?
They maintain tension to help prevent loosening and joint separation. They compensate for thermal expansion and compression set, supporting consistent performance between service intervals. They also deliver these advantages in a compact, cost-effective component that’s simple to specify and install.
