Description
PU (Polyurethane) Industrial Seal / Wear Ring Specification
This product is a custom polyurethane (PU) sealing or wear component commonly used in hydraulic systems, cylinders, and industrial machinery.
Material specification
- Material: Polyurethane (PU)
- Hardness: 75 – 98 Shore A (depending on application requirement)
- Temperature resistance:
- Low temperature: down to -40°C
- High temperature: up to 100°C
- Properties:
- High abrasion resistance
- Good aging resistance
- Oil resistant (hydraulic oil compatibility)
- High elasticity and mechanical strength
Dimension coding system
The product uses a standardized dimension format:
- A = Outer Diameter (OD)
- B = Inner Diameter (ID)
- C = Thickness / Height
- D = Number of “teeth / grooves / claws” (design feature depending on type)
Example interpretation
255 × 150 × 45 × 12
- A: 255 mm (outer diameter)
- B: 150 mm (inner diameter)
- C: 45 mm (thickness)
- D: 12 (number of grooves / teeth / locking points)
Typical applications
- Hydraulic cylinder sealing systems
- Industrial pneumatic systems
- Heavy machinery wear rings
- Pump and valve sealing components
- Shock absorption and guiding elements
Key features
- High wear resistance for dynamic movement
- Stable performance under pressure and friction
- Suitable for oil-based hydraulic environments
- Long service life compared to rubber (NBR) materials
- Customizable dimensions based on machine requirement
Summary
This PU component is a high-strength industrial sealing or wear part made from polyurethane material, designed for hydraulic and mechanical systems with demanding conditions, where durability, oil resistance, and dimensional precision are required.