Grafimec Bearing Systems

Products

Vesconite Line (Self-Lubricant Polymers)

Self-Lubricant Polymers (Vesconite)

Vesconite is constituted by an enhanced thermoplastic material with an assembly of properties specially formulated to long-term applications and low lubrication.

It combines the capacity of bigger load than Babbitt metal with self-lubricating properties better than those of nylon, providing, at the same time, a higher performance to the phosphorous bronze.

Some applications for Self-lubricating Polymers (Vesconite)

Mining
Mines are dirty and damp places. The bearings must be long-lasting even in poor maintenance conditions.
- Master pins
- Battery driven locomotives axes
- Chair lifts
- Feeding Funnels
- Winder brakes
- Cable rewind brakes
- Power System
- Crushers and conveyors
- Earth or mineral handling equipment
- Chain conveyors
- Bulk solids handling
- Recovery trucks, conveyors for mugs

Naval
Vesconite maintains high resistance when immersed in water, being sweet or salty. Do not swell.
- Re tubes
- Tiller Mother
- Basement covers
- Hatches
- Load sticks support
- Deck winches
- Boom Boom Guides
- Offshore Oil Exploration Platforms
- Lifting systems
- Reverse Rollers
- Basement covers
- Variable pitch propellers

Cranes
High loads on cranes, gantry and mobile cranes.
- Extensible pantographic axis
- Mast support sleeves
- Car Wheels
- Coins of the coasts
- Mobile crane pivot bushings
- Lifting platforms
- Elevated aft and pantographic platforms
- Wheels and castors

Industries
- Worm conveyors
- Linear bearings
- Pneumatic motors and vacuum pumps
- Roller Conveyors
- Linear Guides
- Wind generators
- Buckets
- Forklifts
- Block machines
- Sawmills
- Pallets
- Elevators and escalators
- Hydraulic and pneumatic cylinders
- Food Processing

Transport
Bushings should provide long life and quiet operation.
- Suspension Bushings
- Brake and clutch pedal bushings
- Spring Beam Bushings
- Wear Discs
- Starter motor starters
- Master Pin Bushings
- Bushes of the 5th. wheels
- Steering Columns
Long life and absence of maintenance on suspension systems minimize repairs:
- Locomotive trucks and wagon toppieces
- Traction motor support bushes
- Pantographs
- Brake levers

Agriculture
Hard conditions challenge most bearing materials. The environment is dirty, damp and maintenance is not always possible.
- Disc plows
- Tractors and trailers
- Submersible pumps
- Planters
- Water wheels
- Replacement needle roller bearings
- Cane tractors, carts and conveyors
- Centrifugal pumps
- Submersible pumps
- Windmills
- Combine harvesters
- Plows, planters and fertilizers
- Central pivot irrigation systems

Subaquatic
Vesconite bushings are suitable for working with water or oil as a lubricant. The low coefficient of friction of Hilube causes the bushings to survive well in the dry operation situation during the start or when the pump inlet is mechanically blocked.
- Axis bushings
- rotor wear rings
- support bearings
- rotor support bearings
The material of the bushings has to withstand a huge variety of fluids.
- butterfly valve sleeve bushings
- axle bushings in drawer valves
- spheres