INDUSTRY COMPONENT

Pressure Spring

A pressure spring is a mechanical component that applies controlled force through compression to maintain tension, alignment, or pressure in drive roll assemblies and similar machinery.

Component Specifications

Definition
A pressure spring is a helical compression spring designed to exert a specific force when compressed within a drive roll assembly. It functions to maintain consistent pressure between rollers, ensure proper material feeding or tensioning, compensate for wear or thermal expansion, and dampen vibrations. These springs are precision-engineered to provide linear force-displacement characteristics within defined operational limits.
Working Principle
The pressure spring operates on Hooke's Law (F = kx), where applied force is proportional to displacement. When installed in a drive roll assembly, it compresses to generate a restoring force that maintains pressure between rollers. This ensures consistent friction, tension control, and alignment while accommodating minor variations in material thickness or roller wear.
Materials
Typically made from high-carbon steel (SAE 1060-1095), alloy steel (AISI 6150, 9254), stainless steel (302, 316), or music wire (ASTM A228). Materials are selected based on required tensile strength, corrosion resistance, fatigue life, and operating temperature range.
Technical Parameters
  • Free Length 20-200 mm
  • Spring Rate 5-200 N/mm
  • Wire Diameter 1.0-10.0 mm
  • Outer Diameter 10-100 mm
  • Maximum Compression 50-80% of free length
  • Operating Temperature -20°C to 120°C
  • Load at Working Height 50-5000 N
Standards
ISO 10243, DIN 2095, DIN 2096, JIS B 2704

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pressure Spring.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Fatigue failure under cyclic loading
  • Corrosion in humid/chemical environments
  • Over-compression leading to permanent set
  • Improper installation causing misalignment
  • Material embrittlement at extreme temperatures
FMEA Triads
Trigger: Cyclic loading beyond fatigue limits
Failure: Spring fracture or permanent deformation
Mitigation: Design with adequate safety factor, use fatigue-resistant materials, implement regular inspection schedules
Trigger: Exposure to corrosive environments
Failure: Reduced cross-sectional area and premature failure
Mitigation: Select corrosion-resistant materials (stainless steel), apply protective coatings, maintain proper lubrication
Trigger: Installation without proper preload calculation
Failure: Insufficient or excessive roller pressure
Mitigation: Follow manufacturer specifications, use calibrated tools for installation, verify pressure with force gauges

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±10% on spring rate, ±2% on dimensions per ISO 10243
Test Method
Compression testing per ISO 7500-1, fatigue testing per DIN 50100, material verification per ASTM A370

Buyer Feedback

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"The Pressure Spring we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the primary function of a pressure spring in a drive roll assembly?

The pressure spring maintains consistent force between rollers to ensure proper material feeding, tension control, and compensation for wear or thermal expansion.

How do I select the correct pressure spring for my application?

Consider required force (spring rate), operating space (dimensions), material compatibility, environmental conditions, and compliance with industry standards like ISO 10243.

What are common failure modes for pressure springs?

Fatigue failure from cyclic loading, corrosion in harsh environments, permanent set from over-compression, and loss of spring rate due to material degradation.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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