YEARS OF DUTY IN THE COLUMBIA RIVER

Moving screen keep fish and debris out of the hydro-generating turbines. This submerged application called for high loads, rough installation, plus the demanding requirement for year of maintenance-free and lubricatin-free operation. GRAPHALLOY Heavy Duty Pillow Blocks outlasted the competition and continue to give maintenance-free service after five years.

BRANDING HAMS

A gas torch is used to heat a rotating branding iron in a ham packing production line. The high temperatures and grease spatter meant that ball bearings gave inadequate life. Standard off-the-shelf GRAPHALLOY parts meet the requirement for long-life, maintenance-free operation.

HIGH TEMPERATURE COAL-ASH CARRIER

A manufaturer of coal-ash handling equipment required a busing for a flapper valve to control hot coal-ash. This is a hign-temperature, abrasive environment. The flapper valve must operate reliably without sticking and withou lubrication. GRAPHALLOY was chosen for consistent perfromance - week after week.

PRINTING BEER CANS

A major brewer uses GRAPHALLOY Bushings. As beer cans are printed, they move through a high temperature drying oven. GRAPHALLOY 675 Pillow Blocks were chosen to provide long life and self-lubrication at these high temperatures.

HIGH TEMPERATURE CONVEYOR

A flooring manufacturer used high temperature grease to lubricate a roll conveyor. Its bearings were lasting 3 to 4 weeks and bearing failures ruined the product. Redesigned, uing GRAPHALLOY Bearings, these rolls have lasted 13 times longer and are still running. GRAPHALLOY raised production and eliminated spoilage.

HIGH RESOLUTION PRINTER

A navy contractor has developed a high resolution printer for printing sonar images. At 600 lines per minute stylus is drawn across sensitive paper and a current passed through the paper, a black line is formed. GRAPHALLOY Brushes were chosen for long life and consistent operation under battle conditions.

STEAM- CLEANING CHAIN DRIVE

A pharmaceutical manufacturer with a high temperature steam sterilizer couldn't keep a chain conveyor running. Bronze fluorocarbon shells were unable to handle the load and enviromnet at the conveyor wheel turns. Redesigned using GRAPHALLOY, the conveyor has functioned two years without downtime or maintenance.

AUTOMOTIVE RADIATOS

As sutomotive radiators travelled to a high temperature brazing oven, ball bearing pillow blocks with high-temperature lubricant were giving only several days to one month service. GRAPHALLOY inserts (part 845) were provided as direct replacements for the ball bearings and have already given seven times longer life. The GRAPHALLOY parts are expected to run three years, saving thousands of dollars in maintenance and lost prodution.

HEAVY CURRENT-CARRYING BUSHING

The U.S. Bureau of Mines uses GRAPHALLOY Bushings to carry over 8000 amperes to an electric metal-melting furnace. These double flanged, split busings stabilize a rotating shaft and carry the current. Years of reliable operatin have been demonstrated.

METAL STRAPPING

A manufaturer of metal strapping was using bronze bushings for sheaves in a hot water cleaning bath. The bushings werer lasting 2 to 3 months, and failed busings ruined the shafts as well. Often the sheaves stopped turning and were themselves ruined when the bronze bushing failed. GRAPHALLOY Bushings were installed and more than doubled production.... and eliminated costly shaft and sheave reapairs as well.

HIGH-TEMPERATURE PAINT LINE CONVEYORS

Paint line drying ovens use GRAPHALLOY Bearings for the conveyor wheel turns. Self-lubricating Graphalloy withstands the heat without lubrication, without noise, without maintenance and without downtime.

AIRCRAFT JET ENGINE MANUFATURER

A major aircraft manufacturer specifies GRAPHALLOY for a critical component used to control engine cooling air. The design calls for a life of 11,000 cycles and 1000^o F, exhaust blasts. Stable, reliable, enduring GRAPHALLOY fills the bill for low maintenance.

POLLUTION CONTROL/ASH PRECIPITATOR

Despite abrasives and high temperatures (500^o F), this chain-driven drag conveyor precipitated ash from a power plant. Pillow blocks with standard bearings couldn't handle the application. GRAPHALLOY Bearings, split for easy installation, have kept the precipitator running and the power plant on-line.

HEAVY DUTY METAL-CASTING MACHINES

This international casting company required an improvement over the three-months life obtained with grease-lubricated bronze in a linear motion. Molds for molten metals were supported by bronze bearings on ground shafts. The grese picked up environmentsl dust and not only wore out the busings but scored the shafts.

Dry- running GRAPHALLOY more than doubled the life of the previously-used bushings and eliminated the enourmous cost of replacing scored shafts.

HEAT TRANSFER STAMPING

A manufacturer of marking equipment required a busing to transfer heat and to rotate unlubricated. Metal-impregnated GRAPHALLOY assures a high heat transfer without lubrication in both low-and high-speed marking systems. GRAPHALLOY Bushings have met this tough requirement.

GAS TURBINE PACKING RINGS

An east coast gas utility finally came back for replacement Copper-GRAPHALLOY Seal Rings were replaced after 15 years of round-the-clock service.