CARBON GRAPHITE Silver Dot Dryer Bearings
St. Marys Carbon manufactures the patented Silver DotTM dryer & hanger bearings for a variety of dryer sizes and applications. St. Marys Carbon Grade 224 is recognized globally and offers the industry’s highest quality and longest-lasting bearings. Silver DotTM bearings, from the blending raw materials to the finished product, are made in-house by our specialized craftsmen.
ENVIRONMENT, OPERATING CONDITIONS & APPLICATIONS
Complete Assembly
Operates in every type of dryer as Silver DotTM is available as plain whole or half bearings and as full assemblies.
High Temperature
Meets the demanding/harsh environments of a variety of dryers due to its stability at high temperatures.
Patented Materials
Provides for the industry’s highest quality bearing as this proprietary grade is only manufactured by St. Marys Carbon.
Reduced Downtime
Greatly decreases dryer maintenance and costs due to our two-year bearing guarantee and quality craftsmanship.
Bearings with Assemblies
Our Silver Dot bearings are also available as a complete assembly to provide you with one source for all of your dryer bearing needs. We offer assemblies for every dryer type. Our main assembly types are listed below.
- WFA
- AKI
- CDLs, including Jacketed, Bucktooth
- Pillow Block
- Doorpost
- Horseshoe
- Flush Mounts
- 90 Degree
- Vertical
- Football
- Veneer & Lynloc
- Miscellaneous
HOW CAN WE HELP YOU ?
Product 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
CUSTOMIZED BEARINGS FOR EVERY DRYER TYPE
Silver Dot bearings are available as either a plain half-bearing, plain whole bearings or as a complete assembly. We offer bearings for every type of dryer:
- Gypsum Dryers
- Ceiling Tile Dryers
- Veneer Dryers
- Insulation Board Dryers
- Other Large Dryers
Key Markets
We have Silver Dot bearings available for the largest dryer manufacturers, including:
- Gyptech
- Grenzebach
- Coe
- AKI
Average Oxidation & Chemical Resistance
- Carbon grades are resistant to most chemicals
Spring Pressure Range
- Application dependent
DELIVERY TIMES
We take great pride in the quality of our Silver Dot products and the service that each of our Silver Dot customers receive. In fact, we are so confident that we offer product and service guarantees that no other dryer bearing manufacturer can match:
- Two-year Bearing Guarantee
We guarantee two years of failure-free uptime in your dryers. If any bearing does not meet this standard, we will replace it free of charge and help to identify the problem to make sure all future bearings live up to the Silver Dot name.
- Unmatched Delivery Times
We understand that at many times you need your bearings ASAP, so with St. Marys Carbon, we guarantee that you receive your bearings on-time, every time. In fact, we promise Next Day Delivery on all bearing orders for our qualified customers.
Take The Silverdot Challenge
If you want to become a qualified customer or test 12 FREE bearings in your dryers, visit our Silver Dot Challenge page or contact us directly.
GRADE GRID
| Grade | Density(lbs./ft.3) | Flexural Strength (psi) | Compressive Strength (psi) | Coefficient of Thermal Expansion (µ/°F) | Temperature Limit Neutral (°F) | Temperature Limit Oxidizing (°F) | Scleroscope Hardness | Applications |
|---|---|---|---|---|---|---|---|---|
| 224 | 112.32 | 8,000 | 19,000 | 2.85 | 1,150 | 1,150 | 80 | Oven / Dryers |
| 75 | 106.08 | 8,100 | 21,500 | 2,80 | 3,000 | 750 | 80 | Oven / Dryers |
How carbon graphite will make your products & parts superior
Silver Dot Dryer Bearings Data Sheet
Explore our latest resources
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…
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 …
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 …
