Top 12 Air Bearings

Air bearings are a system of bearings that create a thin film of air between two surfaces of relative motion. Unlike conventional bearings that use oil and grease as lubricants, air bearings use air as a lubricant for eliminating surface friction and heat generation. This air lubricant is self-generating by the relative motion of the two surfaces.

Browse Best Air Bearings

Bell & Gossett Seal Bearing Assembly Model 189162

  • Brand Name: Bell & Gossett
  • Model Name: 4YM28
  • Item Weight: 13.00 pounds
  • Overall Score: 0
Store Website: www.amazon.com

Bell & Gossett 118844LF Bearing Assembly with Gasket - 523022

  • Brand Name: Bell & Gossett
  • Model Name: 118844LF
  • Item Weight: 2.45 pounds
  • Satisfaction Score: 100%
  • Dimensions: 6.6 x 5.8 x 5.7 inches; 2.45 Pounds
  • Overall Score: 9.5
Store Website: www.amazon.com

Fabco-Air A-721-X Original Pancake Cylinder, Double Acting, Maximum Pressure ...

  • Brand Name: Fabco - Air
  • Model Name: FAB A-721-X
  • Dimensions: 5.6 x 5.5 x 2.3 inches; 2.06 Pounds
  • Overall Score: 0
Store Website: www.amazon.com

Saunders 3/8″ Wrist Rocket Steel Slingshot Ammo - 100 Ct

  • Brand Name: BC Precision
  • Model Name: S38100
  • Satisfaction Score: 100%
  • Dimensions: 3.7 x 2.3 x 2.3 inches; 13.6 Ounces
  • Overall Score: 8.9
Store Website: www.amazon.com

Fabco-Air L-7-X-E Original Pancake Cylinder, Double Acting, Maximum Pressure ...

  • Brand Name: Fabco - Air
  • Model Name: FAB L-7-X-E
  • Dimensions: 4.6 x 2 x 0.7 inches; 9.6 Ounces
  • Overall Score: 0
Store Website: www.amazon.com

Fabco-Air E-121-X Original Pancake Cylinder, Double Acting, Maximum Pressure ...

  • Brand Name: Fabco - Air
  • Model Name: FAB E-121-X
  • Item Weight: 8.6 ounces
  • Dimensions: 7 x 7 x 7 inches; 8.64 Ounces
  • Overall Score: 0
Store Website: www.amazon.com

Fabco-Air 949-000-331 Electronic Sensor for Original Pancake, Sourcing PNP ...

  • Brand Name: Fabco - Air
  • Model Name: FAB 949-000-331
  • Satisfaction Score: 100%
  • Dimensions: 7.5 x 7.5 x 8.5 inches; 0.8 Ounces
  • Overall Score: 0
Store Website: www.amazon.com

Igus RJM-01-10 DryLin R Solid Plastic Bearing, 10 mm ID

  • Brand Name: Igus
  • Model Name: RJM-01-10
  • Satisfaction Score: 76%
  • Dimensions: 1.2 x 0.7 x 0.7 inches; 0.8 Ounces
  • Overall Score: 6.9
Store Website: www.amazon.com

Fabco-Air 9B49-000-331 Electronic Sensor for Original Pancake, Sourcing PNP ...

  • Brand Name: Fabco - Air
  • Model Name: FAB 9B49-000-331
  • Dimensions: 6.7 x 4.8 x 0.2 inches; 0.35 Ounces
  • Overall Score: 0
Store Website: www.amazon.com

Fabco-Air AB-1221-X Original Pancake Cylinder, Double Acting, Maximum Pressure ...

  • Brand Name: Fabco - Air
  • Model Name: FAB AB-1221-X
  • Dimensions: 5.4 x 5.4 x 2.1 inches; 3.15 Pounds
  • Overall Score: 0
Store Website: www.amazon.com

Igus RJM-01-08 DryLin R Solid Plastic Bearing, 8 mm ID

  • Brand Name: Igus
  • Model Name: RJM-01-08
  • Satisfaction Score: 44%
  • Dimensions: 1.2 x 0.5 x 0.5 inches; 0.35 Ounces
  • Overall Score: 6.1
Store Website: www.amazon.com

Bell & Gossett 189105LF Pump Bearing Assembly

  • Brand Name: Bell & Gossett
  • Model Name: 189105LF
  • Item Weight: 8.58 pounds
  • Satisfaction Score: 100%
  • Dimensions: 1 x 2 x 3 inches
  • Overall Score: 9.9
Store Website: www.amazon.com

Air Bearings Buying Guide

One of the biggest enemies in the world of mechanical engineering is friction. Excessive contact between two relative motion surfaces implies faster wear and tear and corrosion of surfaces due to heat. Even though surface friction between two contacting surfaces are removed using industrial grease and lubricants in traditional bearing systems, there will be a need to change these surfaces in the long run, giving rise to high costs of parts replacement. Air bearings solve this problem by eliminating surface contact by creating a thin film of air that acts as a lubricant.

When to use air bearings?

Air bearings may not be suitable for all applications. It is essential to consider the design requirements, installation guidelines, and unique requirements of air bearings. Air bearings are used when there is a requirement for friction elimination, high accuracy, and repeatability. Low acceleration and high load capacity in small design envelopes generally go better with traditional bearing systems and do not need air bearings.

What type of air bearing to use and when?

There are broadly two types of air bearings. One is aerodynamic bearing and the other being aerostatic bearing. While aerodynamic bearings need relative motion between surfaces to create a thin film of air for lubrication, aerostatic bearings do not. An external pressure source supplies this air film for aerostatic bearings. When there is a need for a massive load capacity at zero speed, aerostatic bearings are more suitable than aerodynamic bearings. The latter does not have load carrying capacities at zero speed, resulting in contact of surfaces and increased wear tear.

Orifice or porous media bearings. Which is better?

Air bearings need to be supplied with a continuous stream of pressurized air. Orifice air bearings supply air through small holes and grooves. However, the air supply tends to be uneven and unstable through orifice media bearings. In porous media bearings, wherein air is filtered through millions of sub-micron sized holes, the air supply is stable, and air pressure is equal across the bearing's face. It also automatically regulates and dampens air flow at all times. Hence, porous media bearings are far superior to orifice based bearings.