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Help CenterNEMA LE/PFCC21 Phenolic Cloth Tube (HGW2086)
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Description
The PFCC21 Phenolic Cloth Tube made from fine-weave linen fabric (or cotton cloth) and phenolic resin, this grade offers excellent machinability and improved moisture resistance compared with other linen phenolic tubes. Ideal for precision-machined mechanical parts operating in moderately humid environments.
We have tubes of below standards:
GOST Standard: 3526
IEC Standard: PFCC21, PFCC22, PFCC23, PFCC24
DIN: Hgw2086, Hgw2085, -
NEMA Standard: LE, L, CE, C
Features
High Mechanical Strength – Excellent load-bearing capacity due to fabric-reinforced structure
Good Wear & Impact Resistance – Suitable for friction and bearing applications
Lightweight Alternative to Metal – Reduces weight without sacrificing strength
Excellent Machinability – Fine weave enables precision machining of complex parts
Dimensional Stability – Maintains shape under mechanical stress
Improved Moisture Resistance (LE Grade) – Better performance in humid environments
Applications
Mechanical Engineering – Structural components, sleeves, and support parts
Bearing & Bushing Systems – Plain bearings, wear rings, and guide components
Hydraulic Equipment – Tubes and structural parts exposed to pressure and friction
Industrial Machinery – Gears, rollers, spacers, and mechanical elements
Electrical & General Insulation – Moderate insulation applications requiring moisture tolerance
Metal Replacement Applications – Lightweight, corrosion-resistant substitute for steel or bronze
| Phenolic Cloth Laminates | ||||||||
| No. | Item | Unit | Range | PFCC21 | PFCC22 | PFCC23 | PFCC24 | 3526 |
| LE | L | CE | C | — | ||||
| HGW2086 | HGW2085 | — | — | — | ||||
| 1 | Flexural Strength (Perpendicular to Laminations) | MPa | ≥ | 90 | 80 | 80 | 100 | 80 |
| 2 | Compressive Strength (Axial) | MPa | ≥ | 110 | 100 | 100 | 120 | 45 |
| 3 | Shear Strength (Nominal Dia ≤100 mm) | MPa | ≥ | 90 | 90 | 90 | 100 | 80 |
| 4 | Electric Strength ⊥ (in oil at 90°C, wall thickness 1.6 mm) | kV/mm | ≥ | 2.1 | 2.1 | — | 2.1 | 3.5 |
| 5 | Breakdown Voltage Parallel to Laminations (in oil at 90°C) | kV | ≥ | 10 | 10 | 8 | 10 | 10 |
| 6 | Dissipation Factor (1 MHz) | — | ≤ | — | — | — | — | — |
| 7 | Dissipation Factor (48–62 Hz) | — | ≤ | — | — | — | — | — |
| 8 | Dielectric Constant (1 MHz) | — | ≥ | — | — | — | — | — |
| 9 | Insulation Resistance After Water Immersion (Nominal thickness ≥10 mm, nominal inner dia ≥8 mm) |
MΩ | ≥ | 10 | 2 | 0.5 | 2 | 10 |
| 10 | Heat Resistance | ℃ | ≤ | 120 | 120 | 120 | 120 | 130 |
| 11 | Water Absorption | mg/cm² | ≤ | 5 | 10 | 13 | 5 | 4 |
| 12 | Density | g/cm³ | — | 1.15-1.35 | 1.15-1.35 | 1.15-1.35 | 1.15-1.35 | 1.15-1.35 |
| 13 | Flammability | Class | — | — | — | — | — | — |
| 14 | Standard | / | / | IEC 61212-3-1:2006 | GB/T 5132 | |||
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