PTFE rod Rulon® LR

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Overview
Rulon® LR is a ceramic‑filled PTFE material engineered for sleeve and sliding bearing applications. It is compatible with most hardened steel substrates (mild steel acceptable) and exhibits near‑universal chemical inertness; only molten sodium and fluorine at elevated temperature/pressure show significant attack. For continuous, non‑lubricated service Rulon® LR can operate up to 10,000 PV, with higher values possible in intermittent service. The material is molded and precision machined to provide high creep and abrasion resistance.

Applications
Rulon® LR is suitable for continuous, non‑lubricated sliding, rotating and oscillating parts. Typical critical parts include:

• Consumer bearings and wear components (e.g., high‑speed blender parts)
• Industrial bearings (chemical pump components)
• Energy spring inserts and poppet valve components
• Slide bearings for pipelines and linear guides
• Piston rings, molded bearings and components, flanged and thrust bearings, stamped/form‑formed seals, extruded profiles, machined parts and molded shapes

Performance highlights

• Low dry friction
• Elimination of stick‑slip
• Reduced hardware abrasion
• Minimal moisture absorption
• Dimensional stability across aggressive chemicals

Standard specifications
Materials: Brown fluoropolymer; engineered ceramic‑filled PTFE
Service conditions: Temperature range: -150°C to +200°C; Mechanical strength: 7 MPa
Manufacturing: Compression molding; material suitable for precision machining
Features: Friction coefficient: 0.15–0.25; Max PV (dry/lub): 0.35 MPa·m/s
Dimensions: Rods and tubes: Ø 1.2 m x L 3 m; Sheets: 610 mm x 80 mm; Tapes: W 1 m x T 0.08–6 mm

Technical characteristics

• Material family: PTFE‑based, brown ceramic‑filled fluoropolymer
• Compatible substrates: Most hardened steel substrates (mild steel acceptable)
• Chemical resistance: Practically universal; exceptions include molten sodium and fluorine at elevated temperature/pressure
• Continuous non‑lubricated capability: up to 10,000 PV (higher intermittent values possible)
• Temperature range: -150°C to +200°C
• Mechanical strength: 7 MPa
• Manufacturing: Compression molding; compatible with precision machining
• Friction coefficient: 0.15–0.25
• Max PV (dry/lubricated): 0.35 MPa·m/s
• Typical forms/dimensions: Rods/tubes (Ø 1.2 m x L 3 m), Sheets (610 mm x 80 mm), Tapes (W 1 m x T 0.08–6 mm)