Independent
testing laboratory results:
"LINK ENGINEERING" Detroit, MI
Wheeling Brake Block
Mfg. Co.
PRODUCT DATA SHEET
Typical properties of NA 2424-B1
| GENERAL DESCRIPTION | TEST REPORT CLICK HERE |
|
| Non asbestos dry mix formula, green in color. | ||
| High content of brass chips, material is semi-smooth. | ||
| PHYSICAL AND CHEMICAL PROPERTIES | ||
| 1. | Specific Gravity | 1.9 |
| 2. | Gogan Hardness | 20 |
| MECHANICAL PROPERTIES | ||
| 1. | Service Condition | DRY |
| 2. | Maximum recommended operating pressures | 750 PSI |
| 3. | Maximum recommended rubbing speed | 7,500 FPM |
| 4. | Maximum recommended operating temperature | 750° F |
| 5. | Average Coefficient of Friction @250 psi 7,500 FPM and 450° F | .50 |
| 6. | Wear rate per horsepower hour @350° F | 7.78% |
| 7. | Spike Temperature | 1,000° F |
| 8. | Dynamic Coefficient | .49=G |
| 9. | Static Coefficient | .50=G |
| All lab results shown are 1/4" thick molded flat bars. Properties may vary with thickness, shape and operating conditions. | ||
| NA-2424-B1 is an upper grade of our NA-2424 formula.
This material was developed for the high energy "hot
friction" characteristics. Today friction drive
machinery is built smaller to accommodate area and weight
loads. This makes brake and clutch bands take more
friction pressure per square inch which will increase
operating temperature. This material is recommended to
accommodate these high operation pressures and
temperatures and still produce coefficient of friction. Independent
testing laboratory results: |
Click on Chart to Enlarge |
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