ARC™ Electrical Contacts / Collector Shoes are manufactured from the highest quality, proprietary materials. St. Marys Carbon has carbon graphite, electrographite, resin-bonded graphite, copper graphite, silver graphite and other metal graphite materials to suit your specific application. All of our electrical contacts, from the blending of raw materials to the finished product, are made in-house by our specialized craftsmen.
We make our ARC Electrical Contacts with the following materials:
We also offer various impregnations and treatments to further fit your application needs.Ask about our ROHS compliant grades that will meet your environmental requirements.
Each of our ARC Electrical Contacts can be custom-manufactured to your specific requirements. We develop our own proprietary carbon grades and manufacture each product in-house, so we will work closely with you to create a product that is suited to your application.
| Grade | Density(lbs./ft.3) | Flexural Strength (psi) | Current Capacity (Amps/in2) | Scleroscope Hardness | Volts Contact Drop | Coefficient of Friction | % Metal | Applications |
|---|---|---|---|---|---|---|---|---|
| G-60 | 411.84 | 11,000 | 150 | <20 | Low | Medium | 96% | Electrical Contacts / Collector Shoes |
| G-98B | 393.12 | 12,000 | 150 | <20 | Low | Medium | 97% | Electrical Contacts / Collector Shoes |
| G320 | 405.60 | 30,000 | 150 | <20 | Low | Medium | 96% | Electrical Contacts / Collector Shoes |
| G257 | 393.12 | 22,000 | <20 | Low | Low | Low | 95% | Electrical Contacts / Collector Shoes |
| B-17 | 96.72 | 4,500 | 65 | 65 | Very High | Medium Low | N/A | Electrical Contacts / Collector Shoes |
| FL-57 | 146.64 | 8,000 | 70 | 75 | Medium | Low | N/A | Electrical Contacts / Collector Shoes |
| A-96 | 98.59 | 4,000 | 50 | 45 | Medium | Medium | N/A | Electrical Contacts / Collector Shoes |
| B-96 | 102.96 | 3,000 | 65 | 45 | Medium | Low | N/A | Electrical Contacts / Collector Shoes |
| G364 | 405.60 | 21,000 | 150 | <20 | Low | Medium | 95% | Electrical Contacts / Collector Shoes |
For more information about our services, call us at 814.781.7333
Prohibits welding and melting to other metal surfaces due to the composition and quality of our grades
Provides consistently high conductivity as only the purest metals and materials are used.
Resists chemical degradation of the
surface material for use in extreme conditions.
Reduces friction/wear and maintenance and increases stability at high temperatures.
Our ARC Electrical Contacts are used in the motors of a variety of end products as listed below. Remember that we custom-design our products to fit your needs, so please contact us if you have a need outside of those below and we’ll work with you to find a solution.
Our electrical contacts and collector shoes are used across a wide range of different markets, including: