Eliminating lubricants can improve machine performance as many greased and oiled bearings fail prematurely due to inadequate lubrication.
Reasons for inadequate lubrication may include:
- Lack of regular maintenance
- Use of incorrect lubricant or topping up with an incompatible lubricant
- Use of greases or oils with inadequate viscosity, allowing metal-to-metal contact between the shaft and the bearing, and resulting in premature wear
Lubrication systems also add costs by:
- Machining of grease paths or oil ways in the shaft or housing
- Purchase of lubricants
- Reduced operating efficiency due to machine downtime during maintenance periods
- Additional sealing to retain the lubricant
- Recycling of the machine
Other disadvantages include:
- Reduced energy efficiency from contact between the lubricant seals and shaft
- Risk of environmental pollution from re-greasing or oil changes in the field
GGB high performance dry bearings are capable of operating without grease or oil due to low friction fillers in the sliding layer. With a wear resistant sliding layer and a robust, high strength structure, GAR-MAX® and GGB-CBM® bimetal bearings offer high load, low and high temperature resistance and long service lives. PTFE inserts in GGB-DB™ cast bronze bearings are used for low wear and friction, graphite inserts are available for temperatures exceeding 250°C. Our thin-walled DP4® low-friction bushings offer over a wider range of loads and speeds exceptional performance.