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Norplex-Micarta RTB320H
- Chemical Family
- Phenols & Phenolics
Being a heat treated version of RTB320, RTB320H has low moisture absorption and excellent dimensional stability. Typical uses include retainers for ball-bearings and applications that require fine machining characteristics. RTB320H also complies with MIL-I-24768/13, Type FBE, ASTM D709 Type II Grade LE and with IEC 61212-3-1 PF CC 21.
Properties
- Physical Form
- Tube
Product families
Automotive & Transportation — Automotive
- Chassis & Brake
Industrial — Chemical & Industrial Manufacturing
- Equipment & Parts
Other characteristics
- Density
- 1310.0 - 1310.0 kg/m³
- Features
Bearing Grade, Dimensional Stability, Good Machinability, Heat Treated, Low Moisture Absorption
- Polymer Name
- Phenolic Compound
- Reinforcement Material
- Cotton
- Markets
- Automotive & Transportation
- 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
- Composites End Use
- Gaskets
- Wheels
- Material Features
- Bearing Grade
- Dimensional Stability
- Good Machinability
- Heat Treated
- Low Moisture Absorption
- Plastics and Elastomers End Uses
- Bearings
- O Rings
- Thrust Washer
Technical data
Table 1 of 3
7 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity (0.75" ID x 1.00" OD) | 1.31 | — | 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) | 1.1 | % | 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) | 9800 | psi | ASTM D638 |
| Compressive Strength (0.75" ID x 1.00" OD, Condition A) | 31000 | 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) | 135/135 | °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) | 275 | Volts/mil | ASTM D149 |
