12-Pack 6809 Full Ceramic Si3N4 Bearings 45x58x7mm

12 Pack 6809 Full Ceramic Ball Bearing 45x58x7mm Size
✔️ Si3N4 Ceramic Bearings PTFE Cage 45mm Bore 58mm OD 7mm Width

Ideal for high speed machinery these full ceramic bearings reduce friction significantly. Designed for industrial equipment they handle loads while resisting corrosion effectively.

✅ Full Si3N4 ceramic race and balls ensures smooth motion
✅ PTFE cage keeps weight down and minimizes heat generation
✅ Exact measurements include a 45mm bore and 58mm outer diameter
✅ Pack consists of twelve matching bearings for large orders

💡 Why do engineers select ceramic materials for spindle motors?
The hard nitride silicon material handles higher heat resistance than steel.

- High hardness prevents deformation at speeds up to 30,000 rpm
- Insulating properties protect electrical systems from shorts
- Resistance to chemical degradation suits harsh workshop fluids
- They lower mass to improve acceleration dynamics significantly

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6809 Full Ceramic Ball Bearing Si3N4 Pack of 12

6809 Full Ceramic Ball Bearing, measures an inner diameter of 45mm, outer diameter is 58mm and the width is 7mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from Ceramic. 6809 Ball Bearing Full Ceramic Ball Bearing Inner/outer races: Si3N4 Ceramic Balls: S3N4 Ceramic Cage Material: PTFE (Polytetrafluoroethylene) Dimensions: 45mmx58mmx7mm/Metric ID (inner diameter)/Bore: 45mm OD (outer diameter): 58mm Width: 7mm Quantity: 12 Bearings