Hot Products
China Suppliers Factory Friction Springs (Ring Springs) - Compact Energy Absorption Solutions
☰ Description
🛠
Custom Design & Engineering
Experience-driven design that goes beyond textbook formulas — tailored to your exact specifications.
⚖
300-Ton Load Testing
Guaranteed performance verified with a high-capacity load tester — even for springs exceeding 100-ton operating loads.
📈
Small-Lot Production
High-mix, low-volume manufacturing — we support orders as small as one or two springs with full quality assurance.
🌯
Extreme Environment Capability
Heat resistance, corrosion resistance, and durability for temperatures from −20°C to above 100°C, including seawater exposure.
☰ Considerations
✓
The inclination angle of the contact surface can be up to 12° in calculation, but it should be noted that depending on the surface finish, the rings may often get caught and not return to their original height.
The friction angle changes depending on the surface finish and the lubrication method, and therefore it must be decided in consideration of the manufacturing finish.
As a guideline, it is recommended that the plate thickness be 16% to 20% of the outer diameter of the outer ring. In addition, it is said that the gap between the rings when no load is applied should be about 25% of the plate thickness.
The friction angle changes depending on the surface finish and the lubrication method, and therefore it must be decided in consideration of the manufacturing finish.
As a guideline, it is recommended that the plate thickness be 16% to 20% of the outer diameter of the outer ring. In addition, it is said that the gap between the rings when no load is applied should be about 25% of the plate thickness.
☰ Frequently Asked Questions
Q1
What makes SMS Spring's friction spring design different from standard textbook calculations?
Standard textbook formulas for friction spring design often cannot be directly applied in real-world scenarios. SMS Spring draws on years of accumulated expertise and hands-on experience to develop customized solutions that account for factors like surface finish, lubrication method, and operating environment — delivering results beyond what formulas alone can achieve.
Q2
How does SMS Spring verify and guarantee friction spring performance?
SMS Spring uses a high-capacity load tester rated up to 300 tons to confirm and guarantee the specifications of each friction spring. This ensures that even large springs with operating loads exceeding 100 tons meet the required performance standards before delivery.
Q3
Can SMS Spring produce friction springs in very small quantities?
Yes. SMS Spring specializes in a complete custom-made, high-mix, low-volume production system that has been a core part of their manufacturing philosophy since the company's founding. They fully support design and production even for orders of just one or two springs.
Q4
What extreme environments can SMS Spring friction springs withstand?
SMS Spring conducts regular verification tests to ensure performance in demanding environments, including temperatures above 100°C, below −20°C, and exposure to corrosive media such as seawater and industrial water. Their springs are designed with appropriate heat resistance, corrosion resistance, and durability properties.
Q5
What is the recommended inclination angle for friction spring contact surfaces?
The inclination angle of the contact surface can be up to 12° in calculation. However, the actual angle must be decided with consideration for the surface finish and lubrication method, as the friction angle varies accordingly. If the angle is not properly selected, rings may get caught and fail to return to their original height under load release.
Q6
Are there guidelines for friction spring plate thickness and ring gap dimensions?
Yes. As a general design guideline, the plate thickness should be 16% to 20% of the outer ring's outer diameter. Additionally, the gap between rings when no load is applied is recommended to be approximately 25% of the plate thickness. These proportions help ensure proper function, energy absorption, and reliable spring return.