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Vacuum Preloaded Air Bearings

 

Vacuum Preloaded Air Bearings

Vacuum Preloaded Bearings

New Way® Air Bearings offers bearings that come preloaded with vacuum to give you more control over the fly height and air gap stiffness.

As with all our products, the vacuum preloaded air bearings use Porous Media Technology™ to provide no contact motion. The naturally porous carbon substrate uniformly distributes air over the surface of the bearing, creating a stiff cushion that eliminates friction.

Our vacuum preloaded line replaces a portion of the surface area of our flat round bearings with a region dedicated to vacuum pressure. This combination of vacuum and air pressure can be finely tuned to adjust the fly height and stiffness for superior damping. This means that only one flat guide surface is necessary instead of two parallel, flat guide surfaces as in opposed bearing preloading.

Many of our other products incorporate vacuum to increase positioning precision and enable high-speed linear motion. Stiffer air gaps combined with no contact motion means you have higher load bearing capabilities while eliminating the possibility of production stopping crashes.

If you’re thinking about using our vacuum preloaded air bearings in your application, reach out to our technicians today to discuss your options.

Vaccuum Preloaded Air Bearings Product Line

The Vacuum Preloaded air bearing line comes in three standard sizes for a variety of load carrying capabilities and to fit in any space. Talk to us today about the specifications of your process.


S209001S209001 - 90mm VPL Air Bearing
vacuum preloaded
S209001S209001 - 90mm VPL Air Bearing

S207501S207501 - 75mm VPL Air Bearing
vacuum preloaded
S207501S207501 - 75mm VPL Air Bearing

S205001S205001 - 50mm VPL Air Bearing
vacuum preloaded
S205001S205001 - 50mm VPL Air Bearing

Units: US METRIC

Comparision Table

Size (Diameter) Part # (select for load/lift curve & drawings) Ideal Load Stiffness Flow Max Hold-Down Force at 50.7kPa Bearing Height mm (in) Bearing Weight grams (oz)
90mm90mm
S209001S209001 34 lbs150 N 0.25 lbs/μ in43 N/micron 3.15 SCFH1.48 NLPM 58.5 lb260 N 0.866 in22 mm 0.69 lbs306 grams
75mm75mm
S207501S207501 25 lbs110 N 0.165 lbs/μ in29 N/micron 2.92 SCFH1.38 NLPM 40.5 lb180 N 0.866 in22 mm 0.464 lbs203 grams
50 mm50 mm
S205001S205001 10 lbs45 N 0.075 lbs/μ in13 N/micron 2.25 SCFH1.06 NLPM 16.4 lb73 N 0.866 in22 mm 0.16 lbs73 grams


  • Precision positioning
  • Optimal stiffness
  • No lubrication
  • No contact
  • Superior fly height control
  • Crash resistant
  • Frictionless motion
  • No noise

Applications

New Way’s Vacuum Preloaded air bearings have successfully been used in a variety of linear motion applications.

Metrology
  • No friction provides high-accuracy positioning
  • No wear between components eliminates maintenance
Precision Machine Tools
  • No lubricants are necessary so compatible with cleanroom environments
  • Vacuum and air pressure combined facilitate precision motion
Semiconductors
  • Bearings come in a variety of sizes to fit any space constraints
  • Optimized stiffness gives you superior control over fly heights

Questions

New Way technicians are standing by to tell you more about how frictionless motion can enhance your manufacturing process. Contact us today!

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