- Tension Springs
- Compression Springs
- Disc Spring
- DIN2093 Disc Spring
- Wire Forms
- Drawbar Spring
- Wave Washer
- Barrel Springs
- Thread Insert
- Spiral Springs
- Torsion Springs
- Die Springs
- Volute Springs
- Belleville Washers
- Taper Spring
- Helical Spring
- Coil Spring
- Heavy Duty Spring
- Solid Thread Insert
- Thread Repair Kit
- Slotted Disc Spring
- DIN6796 Belleville Washer
Drawbar Spring – Controlled Tension and Fail-Safe Mechanism
About the Product
Drawbar Springs are specialized tension springs that incorporate a solid drawbar or limiting rod to control the extension travel. This design prevents the spring from being overstressed or breaking when pulled beyond its safe limit, making it a critical safety component in demanding mechanical assemblies.
- Fail-safe design for controlled extension and safety
- High resistance to sudden load changes or shocks
- Prevents spring over-extension and breakage
- Ideal for critical load applications and transport
Often classified as safety tension springs, Drawbar Springs are vital for systems that require secured tension or quick-release mechanisms. They are frequently used in heavy machinery, transportation locks, and agricultural equipment where reliability is paramount.
Technical Specifications
Characteristics: Standard tension spring body with an internal or external rod (drawbar) to restrict total extension.
Measurements: Wire Diameter: 1.0 mm – 10.0 mm. Length and Form: Fully customizable to blueprint specifications.
Configurations: Extended hook ends, threaded rod assemblies, or specialized mounting flanges.
Rate or Stiffness: Highly variable (10 N/mm – 80 N/mm), dependent on wire size and coil geometry.
Service Life: Design-dependent, capable of up to 750,000 cycles under optimal load conditions.
Tolerances: Tight control: ± 0.15 mm on overall length and ± 10% on load at specified extension.
Applications: Safety release mechanisms, agricultural equipment, overhead garage doors, transport vehicle restraints, and railway buffer systems.
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