Ceramic Linear Bearings from Automotion
A ceramic linear bearing is bearing or bushing that is used with a linear shaft to aid movement of a component in a linear fashion. Ceramic bearings can be used in applications where high temperatures, corrosive or dirty environment dictate a linear ball bushing cannot be used. Unaffected by salt water or corrosion and can be used in a rotary, as well as linear motion.
As specialists in linear motion systems we offer you a choice of materials and sizes. So whether you need lightweight aluminium rails for use in aviation applications or stainless steel components for when exposure to water or corrosive chemicals is a factor, our knowledgable technical engineers are always on hand to provide assistance.
Make sure you download a free Linear Motion Handbook here and utilise our free CAD to help you save time planning your projects.
Thin wall, self-lubricating ceramic linear bearings.
Material
Self-lubricating
These ceramic coated linear bearings are lined with a self-lubricating composite which is bonded to the aluminium shell. This composite is a combination of Teflon® and non-abrasive, polyamide fillers for both load carrying capability and dynamic coefficient of friction. As the self-liner is non-abrasive, it runs equally well on either hardened steel or on soft steel or stainless steel shafting (303 or 316).
Ceramic coated
Ceramic coated linear bearings are a one piece construction employing a file-hard ceramic coating over an aluminium shell. Our ceramic coating is not an anodised or surface coating that can fracture, flake, chip or wash-off in corrosive environments. The ceramic coating is FDA compliant.
These bearings require lubrication (grease or light oil is sufficient - no silicone based lubricants).
Applications
- Automated assembly.
- Packaging machines.
- Food processing equipment.
- Pharmaceutical equipment.
- Medical equipment.
- Wash-down systems.
Ceramic coated bearings
These are manufactured from a special grade of aluminium, then ceramic coated. Surface hardness is 85HRC, which is why the bearings have extremely long wear life. Their extreme hardness prevents particles from entering into the surface of the shafting, (this is the primary cause of bearing and shaft failure).
The ceramic series must be lubricated with a thin film of oil in order to perform correctly.
- Lasting precision alignment.
- Abrasion resistance.
- Elimination of noise.
- Interchangeable with ball bushings.
- Minimal lubrication is required.
- Design economies.
- Rotary/linear motion capabilities.
- Zero shake or play.
- Elimination of galvanic action.
- High operation speeds.
- Excellent electrical insulating abilities.
- Oscillatory motion & rapid directional change.
- Unaffected by salt water or corrosion.
- Cleanliness.
- Vacuum applications.
- No catastrophic failure.
- Low friction.
- Food machinery (FDA approved materials available).
Self-lubricating bearings
- Tough
- Resource free
- Quiet
- Cost-effective
These are maintenance free bearings manufactured to the same standards as our ceramic coated series, but the inside diameter is lined with a special blended Tefl on-material, eliminating the need for lubrication. It also allows the use of soft shaft materials such as unhardened steel, 300 series stainless steel or aluminium.
