Ball-bearing
made of plastic
The high quality of plastic ball bearings is known everywhere. Thanks to constant further development, there are hardly any limits to the processing and application possibilities.

Plastic ball bearings with ceramic balls made of aluminum oxide or silicon nitride
Plastic ball bearings are the better solution wherever the environment does not allow the use of steel (due to heat, cold, moisture, alkalis, acids, etc.) or only allows it to last for a limited time.
These ball bearings are manufactured exclusively by machining. In contrast to the mass production of injected plastic bearings, this manufacturing process guarantees high quality, dimensional stability and long durability.
Our plastic ball bearings with ceramic balls made of silicon nitride (Si3N4) are the optimal choice for demanding applications with aggressive media, sensitive technology, or high hygiene requirements.
Si3N4, Al2O3 oder ZrO2




Why ceramic balls made of aluminum oxide or silicon nitride?
- High hardness and wear resistance for long service life
- Excellent corrosion resistance to chemicals and moisture
- Electrically non-conductive – ideal for electronics and medical technology
- Non-magnetic – suitable for magnet-free environments
- No lubricant required – maintenance-free
Technical features at a glance
- Bearing rings made of: POM, PE, PEEK, or PTFE
- Ball material: aluminum oxide ceramic (Al₂O₃) or silicon nitride ceramic (Si₃N₄)
- Operating temperature: up to 260°C
- Corrosion resistant: yes
- Magnet-free: yes
- Lifetime lubrication: not required
Areas of application
- Chemical plants and laboratory environments
- Food and beverage industry
- Medical technology and diagnostic systems
- Clean rooms and semiconductor manufacturing
- Seawater and outdoor applications
- Devices with electrical insulation requirements
Advantages over metal bearings
- Significantly higher corrosion protection
- No oil or grease required
- Quiet operation due to low weight
- No metal abrasion – higher cleanliness
- Non-conductive
- Ideal for aggressive environmental conditions
Save valuable time – contact us directly!
We don’t overwhelm you with data sheets and unnecessary information. With us you will receive individual advice that is tailored to your problems.
We specialize in finding solutions to our customers’ application problems, saving your valuable time!
Other aspects
The following materials are used as standard to manufacture plastic ball bearings:
Outer and inner rings:
POM • PE • PPH • PETP • PTFE • PA • PEEK • PVDF • PSU
Balls:
Kalknatronglas • Duranglas • Edelstahl 1.4401 • Edelstahl 1.4571 • POM • PP • PVC • PEEK • Keramik • PVDF
Ball bearings made entirely of Peek are also available.

Your direct contact with us!
- 05931 / 885485
- info@mg-ceramics.com