Products Description
Brake Shoe Return Spring
In the drum brake, when the brake pedal is released, the brake shoe return spring will apply force to make the brake shoe retract from the surface of the brake drum and return to the non-braking state, thus ensuring the normal driving of the vehicle and reducing unnecessary wear.
The brake shoe return springs produced by our company are of high quality and have a high number of durability test cycles. Our customers are very satisfied with our products. The following is the basic information about our springs:
|
Eulid No. |
E-3490S |
||
|
Name |
Return spring |
||
|
Weight(kg) |
0.274 |
||
|
Length(mm) |
212.8 |
||
|
Coil O.D. |
Φ31.75 |
||
|
Material |
72B/65Mn |
||
|
Surface treatment |
Powder coating, zinc coating, electrophoresis |
||
|
Application |
Heavy-Duty wire; 80 lb. tension; used in Stopmate Plus Brake Repair Kits. Same as E-3490B |
||
| Replaces |
Sirco Brake B349 |
||
Products advantages
Springs are the "lifeblood" of braking systems, serving as critical components for force transmission and control. Their roles include:
1, Precise Braking Force Generation
Springs produce restoring force through elastic deformation, pushing brake shoes, calipers, and other components to tightly engage with brake discs/drums, creating frictional torque for vehicle deceleration or emergency stops. For example, in parking brakes (hand brakes), the tension of springs directly determines the reliability of parking lockout.
Application Example: In truck air braking systems, spring-loaded energy storage cylinders store energy via spring compression, releasing it to drive brake pistons in emergencies to ensure timely braking response.
2, Dynamic Stability Control
During frequent or high-speed braking, the elastic properties of springs cushion impact loads, preventing damage to brake components from rigid collisions while suppressing braking vibrations to enhance ride comfort.
Technical Key Point: The spring's stiffness (elastic coefficient) must match the braking system. Excessive stiffness may cause abrupt braking or tire lockup, while insufficient stiffness reduces braking force and compromises safety.
3, System Reset and Reliability
After braking, springs assist component resetting via rebound, preventing brake drag (e.g., abnormal wear of brake shoes). Spring failure can lead to brake sticking, overheating, or even fire hazards.
Service Life of Brake Springs
The service life of our brake springs is typically measured by fatigue cycle times or service years, generally ranging from 50,000–100,000 cycles (or 5–8 years).
72B is a high-carbon spring steel, favored for brake components due to its superior comprehensive performance.By choosing 72B material springs and adopting scientific design and maintenance, braking systems can ensure safety while achieving longer service cycles, providing core support for reliable vehicle and equipment operation.
company advantages
the advantage compared with our competitors
(1). Qualified Manufacturer
(2). Reliable Quality Control
(3). Competitive Price
(4). High Efficiency working
(5). One-Stop Service
Welcome to Contact us:
1. Email:carrie@hzbaino.com;
claudia@hzbaino.com;
diana@hzbaino.com;
2. Phone: TEL: +8618969104915;
3. Visit our factory.
FAQ
Do You Have Any Question?
Do you offer OEM service and can you produce as our drawings?
Yes. We offer OEM service. We accept custom design and we have a professional design team who can design products based on your requirements. And we can develop new products according to your samples or drawing.
Can l visit your factory?
By all means, we warmly welcome your arrival, Before you take off from your country, please let us know. We will show you the way and arrange time to pick you up if possible.
If l have a product wants to be made in other special material, can you do it?
Of course, you just need to provide us designed drawings or sample and R&D department will estimate that whether we can do or not, we will give you the most satisfactory reply.
What is your MOQ?
Please tell us what products you need first.Like brake shoe hardware kit, the MOQ is 100pcs.But we can provide any stock as samples for you to check the quality first.
