Bearings for Corrosive Environments

Stainless Steel Bearings

Stainless steel bearings, a standard line in our SPACEA Series for special environments, are affordable options especially suited for high-humidity environments.

Features

• Corrosion-resistant
• Resistant to wet/humid environments
  Stainless steel bearings provide long-life even when exposed to water splashes, etc.

Applications

• Wide applications
  Stainless steel bearings be used in all kinds of machines exposed to high humidity.
• Carrier/conveyance equipment

Molded-Oil™ Bearings

Molded-Oil™ bearings feature a special material that provides a continuous supply of lubricating oil, allowing them to stand up to dust-contaminated environments at atmospheric pressure.

Features

• Resistant to wet/humid environments
  Molded-Oil bearings provide long-life even when exposed to water splashes, etc.
• Improved cleanliness
  No need for grease refilling minimizes oil leakage.

Applications

• Washers in semiconductor production
• Washers in hard disk manufacturing

Hybrid Bearings

Hybrid bearings combine ceramic balls with fluororesin self-lubricating cages to achieve excellent resistance to corrosion at both atmospheric pressure and in vacuum.

Features

• Grease-free
  Lubrication provided by solid lubricant eliminates the need for grease.
• Highly corrosion-resistant
  Approximately 5 times more resistant to corrosion in water than stainless steel bearings.

Applications

• Fruit washers
• Washing equipment in fishing/fisheries

Corrosion-Resistant Coated Bearings

Corrosion-resistant coated bearings feature a nickel coating on the outer and inner rings to enhance durability. They stand up to high-temperature corrosive environments at atmospheric pressure.

Features

• Highly resistant to corrosion
  A specialized coating provides excellent corrosion resistance.
• Suitable around disinfectants
  Coated bearings can also be used in environments with hypochlorous acid and oxonia.

Applications

• Disinfecting equipment
• Etching equipment

Highly Corrosion-Resistant ESZ Bearings with High Hardness Stainless Steel

ESZ bearings use a specialized high-hardness stainless steel to offer better corrosion resistance than martensitic stainless steel. With 30% greater hardness and corrosion resistance equal to precipitation-hardened stainless steel, these bearings stand up to tough corrosive environments at atmospheric pressure.

Features

• Highly corrosion-resistant
  ESZ bearings provide exceptional resistance to corrosion, even among stainless steels.
• Long-life
  Anti-wear properties contribute to long operating life.

Applications

• High-performance film washing equipment
• Beverage sterilizers

All-Ceramic Bearings (Oxide-Based Ceramic Bearings)

With ceramic outer/inner rings and balls, nonmagnetic all-ceramic bearings have self-lubricating fluororesin cages to achieve excellent resistance to corrosion at both normal atmospheric pressure and in vacuum.

Features

• Non-magnetic construction
  An all-ceramic structure gives these bearings the highest resistance to corrosion.
• Long-life
  Anti-wear properties contribute to long operating life.

Applications

• CMP
• Electron beam lithography equipment

Aqua-Bearings™: Highly Corrosion-Resistant Resin Bearings

Aqua-Bearings™ feature special fluororesin outer/inner rings and cages equipped to meet a broad range of applications in water, alkali, and strong acid environments. Aqua-bearings are suitable for corrosive environments at normal atmospheric pressure.