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Norplex-Micarta RTB320Z
- Chemical Family
- Phenols & Phenolics
RTB320Z is similar to RTB320X being composed of an extra-fine weave woven cotton fabric combined with a phenolic resin system. RTB320Z tubes have higher densities (minimum allowable specific gravity is 1.30) resulting in enhanced precise machining characteristics and are expected to give longer life in wear applications. Typical uses include retainers for ball-bearings. RTB320Z also complies with MIL-I-24768/13, Type FBE, ASTM D709 Type II Grade LE and Federal Specification WW-L-2887 and IEC 61212-3-1 PF CC 21.
Properties
- Physical Form
- Tube
Product families
Industrial — Chemical & Industrial Manufacturing
- Equipment & Parts
Other characteristics
- Density
- 1340.0 - 1340.0 kg/m³
- Features
Bearing Grade, Good Machinability, High Density, Wear Resistant
- Polymer Name
- Phenolic Compound
- Reinforcement Material
- Cotton
- Markets
- Industrial
- Technology
- Composite Materials
- Plastics
- Fillers Included
- Cotton
- Natural Fiber
- Product Families
- Composite Materials — Parts & Shapes
- Plastics — Parts, Shapes & Films
- Quality Standards
- ASTM F2953-12
- IEC PF CC 21
- MIL-I-24768/13 Type FBE
- NEMA LE
- Material Features
- Bearing Grade
- Good Machinability
- High Density
- Wear Resistant
- Plastics and Elastomers End Uses
- Bearings
Technical data
Table 1 of 3
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity (0.75" ID x 1.00" OD) | 1.34 | — | ASTM D792 |
| Rockwell Hardness (0.75" ID x 1.00" OD) | 105 | M Scale | ASTM D785 |
| Moisture Absorption (0.75" ID x 1.00" OD, Condition D1-24/23) | 1.4 | % | ASTM D570 |
| Acetone Extraction (0.75" ID x 1.00" OD, Condition A) | max. 1.0 | % | ASTM F2953-12 |
| Tensile Strength (0.75" ID x 1.00" OD, Condition A) | 11000 | psi | ASTM D638 |
| Compressive Strength (0.75" ID x 1.00" OD, Condition A) | 33000 | psi | ASTM D695 |
| Compressive Modulus (0.75" ID x 1.00" OD, Condition A) | 400 | kpsi | ASTM D695 |
Table 2 of 3
2 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Temperature Index (0.75" ID x 1.00" OD, Electrical / Mechanical) | 125/125 | °C | — |
| Flammability Rating (0.75" ID x 1.00" OD, Condition A) | HB | Class | UL Bulletin 94 |
Table 3 of 3
1 row| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Electric Strength (0.75" ID x 1.00" OD, Condition A) | 200 | Volts/mil | ASTM D149 |
