Leather Seal Body: Diameter Range 10-200 mm

Q: What is the maximum pressure rating for leather seal bodies?

Leather seal bodies typically handle up to 25 MPa (3625 psi) when properly installed in compatible hydraulic systems.

Q: How does temperature affect leather seal performance?

Optimal performance occurs between -20°C to +80°C. Outside this range, leather may harden or soften, affecting sealing effectiveness.

Q: Can leather seals be used with all hydraulic fluids?

They work best with mineral-based oils and certain synthetic fluids (HFA, HFB, HFC). Compatibility should be verified for specific fluid types.

Component Specifications

Definition

A precision-engineered leather seal body designed specifically for hydraulic piston applications, providing effective fluid containment and pressure maintenance in hydraulic systems. This component serves as the structural foundation for sealing elements in leather hydraulic piston seals, ensuring proper alignment and compression against mating surfaces.

Working Principle

The leather seal body functions by providing a stable, compressible structure that maintains consistent contact pressure between the sealing element and the piston/cylinder interface. It deforms under hydraulic pressure to create a tight seal while allowing controlled movement of the piston rod, preventing fluid leakage and maintaining system pressure.

Materials

Premium-grade vegetable-tanned bovine leather with specific density (0.8-0.9 g/cm³), thickness tolerance ±0.1mm, treated with hydraulic fluid-resistant impregnation compounds. Leather must meet ASTM D1517 standards for industrial leather.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hardness	70-80 Shore A
Diameter Range	10-200 mm
Compression Set	<15% after 24h at 70°C
Pressure Rating	Up to 25 MPa
Temperature Range	-20°C to +80°C
Fluid Compatibility	Mineral oils, HFA, HFB, HFC fluids

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 3601-3, DIN 3760, ASTM D1517, SAE J515

Parent Products

This component is used in the following industrial products

Leather Hydraulic Piston Seal

This precision-engineered leather seal is designed specifically for hydraulic piston applications.

View Product Details

Engineering Analysis

Risks & Mitigation

Leather degradation from incompatible fluids
Compression set over time reducing sealing force
Temperature extremes causing hardening or softening
Improper installation leading to premature failure

FMEA Triads

Trigger: Exposure to incompatible hydraulic fluids
Failure: Swelling, cracking, or disintegration of leather material
Mitigation: Verify fluid compatibility before installation and use appropriate impregnation treatments

Trigger: Excessive temperature operation
Failure: Hardening (low temp) or softening (high temp) leading to seal failure
Mitigation: Maintain operating temperature within specified range and monitor system temperature

Trigger: Improper installation compression
Failure: Uneven wear, leakage, or premature failure
Mitigation: Follow manufacturer installation guidelines and use proper installation tools

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1mm on critical dimensions, surface finish Ra ≤ 1.6μm

Test Method

ISO 3601-3 for hydraulic seals, pressure testing per SAE J515, leakage testing at rated pressure for 24 hours

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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Manufacturers of Leather Seal Body

Manufacturer profiles associated with Leather Seal Body.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Frequently Asked Questions

What is the maximum pressure rating for leather seal bodies?

Leather seal bodies typically handle up to 25 MPa (3625 psi) when properly installed in compatible hydraulic systems.

How does temperature affect leather seal performance?