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CARBON GRAPHITE BEARINGS & BUSHINGS MANUFACTURING

St. Marys Carbon custom manufactures many sizes, shapes and quantities of carbon graphite bearings, including Radial, Thrust and Sleeve. All of our bearings, from the blending of the raw materials to the finished product, are made in-house by our specialized craftsmen.

We can custom-manufacture our bearings and bushings to your specific carbon grade requirements. We develop our own proprietary grades and manufacture each product in-house, so we will work closely with you to create a product that is right for you.

ENVIRONMENT, OPERATING CONDITIONS & APPLICATIONS

Dry Running Oil Less

DRY-RUNNING / OIL-LESS

Greatly reduces failure rates and allows for use in sanitary environments due to its self-lubricating properties.

High Temperature Stability

HIGH TEMPERATURE STABILITY

Maintains high strength and runs effectively without failure at high temperatures.

High Thermal Conductivity

HIGH THERMAL CONDUCTIVITY

Allows for heat exchange to prevent overheating.

Low Friction Wear

LOW FRICTION / WEAR

Resists wear and reduces friction as it is chemically inert, oxidation-resistant and self-lubricating.

KEY END PRODUCTS

Our bearings are used in a wide range 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.

  • Chemical Pumps
  • Fluid-Handling Pumps
  • Food-Handling Pumps
  • Fuel PumpsMedical Pumps
  • Oil & Gas Pumps
  • Refrigeration Pumps
  • Vacuum Pumps

HOW CAN WE HELP YOU ?

CARBON GRAPHITE BEARINGS & BUSHINGS DETAILS

Working Temperature

  • Minimum
    • Runs in cryogenic temperatures (no true minimum value)
  • Maximum
    • Carbon/Graphite up to 700 F
    • Electrographite up to 900 F
    • Electrographite with inorganic additives up to 1150 F
      • Other oxidation inhibitors (impregnants) up to 1200 F
    • In inert/neutral environments
      • Carbon/Graphite up to 1600 F
      • Electrographite up to 5000 F

Key Markets

You can find our bearings and bushings used across a wide range of different markets, including:

  • Aerospace
  • Automotive
  • Chemical
  • Food
  • Industrial
  • Marine
  • Medical
  • Oil & Gas
  • Pharmaceutical

Average Oxidation & Chemical Resistance

  • Carbon grades are resistant to most chemicals

Spring Pressure Range

  • Application dependent

Amp per sq inch

  • 75 – 150 A/in2 

Shaft Material 

  • What material should be listed?

Rotation Speed 

  • Application dependent

CARBON GRAPHITE GRADE

GradeDensity(lbs./ft.3)Flexural Strength (psi)Compressive Strength (psi)Coefficient of Thermal Expansion (u/°F)Temperature Limit Neutral (°F)Temperature Limit Oxidizing (°F)Scleroscope HardnessApplications
181C111.0710,00030,0003.0650050090Bearings / Brushings
75106.088,10021,5002.803,00075080Bearings / Brushings
75C112.329,30030,0003.2550050095Bearings / Brushings
416115.5013,00033,0002.8050050095Bearings / Brushings
35109.207,00017,5002.405,00085060Bearings / Brushings
35AH109.207,50017,0002.401,5001,15065Bearings / Brushings
245113.008,00016,0002.305,00085080Bearings / Brushings
233118.568,00022,0002.301,0001,00090Bearings / Brushings

How carbon graphite will make your products & parts superior

Download Guide

Bearings & Bushings Data Sheet

Data Sheet

Explore our latest resources

Mechanical Seal

Carbon Graphite Mechanical Seal Types

Rotating equipment often requires a dynamic mechanical seal to create a seal between a rotating shaft and a stationary body and prevent the escape of process fluid(s) including liquid and/or gas. They can also be used in mixer seals to prevent fugitive ambient particulates from entering a contained vessel being being mixed such as a pharmaceutical reaction…

Bearing Life

Why Bearings Fail and How to Prevent It

All bearings have a fixed life expectancy. Some are replaced because of normal wear or spalling, and others need replacing because of premature wear or failure. An unexpected failure can cause damage to equipment, downtime, costly replacement, and possibly even injury. And, even before they fail, the premature wear is likely to have effects on performance …

Graphite Conductivity

Carbon Graphite Conductivity & Expansion

When deciding on the materials for carbon graphite components or parts, it all starts with a thorough review of the application which includes the components’ form/function/fit and property identifying the “must haves” and the “nice to haves” and melding these with a design for manufacturability. There are three important physical characteristics …

For more information about our services, call us at 814.781.7333

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