Greasing Ball Bearings a Necessity? Is There No Alternative to Greasing Ball Bearings?

Who does not know it? When installing metallic ball bearings, grease or lubricating oil always remain on the fingers. Grease ball bearings? Is it possible without it? Of course!

Plastic ball bearing

Plastic ball bearings operate effectively without lubrication, which is a significant advantage over traditional metal bearings. They may not reach the high speeds of over 5,000rpm that metal can achieve, but such speeds are rarely required in most applications. Typically, these applications operate under low load and speed conditions. One of the standout features of plastic ball bearings is their performance in liquid environments, including water and various chemicals.

Moreover, plastic ball bearings are a viable option even at high temperatures, capable of withstanding up to 150°C. They offer several benefits compared to their metal counterparts, particularly in terms of movement. With a much lower breakaway torque, they don't need to overcome the resistance typically presented by lubricants. They are also lightweight and can be supplied with glass balls upon request, making them completely metal-free and non-magnetic, which is an essential feature for certain applications. For those seeking grease-free ball bearings, xiros provides a reliable solution.

Ceramic ball bearing

Technical ceramics offer a lubrication-free alternative to traditional ball bearings, boasting high resistance to wear, corrosion, and temperature. Their lightweight, rigid, and electrically insulating properties make them ideal for rolling bearing applications. While the initial cost is higher than metallic materials, ceramics like silicon nitride, silicon carbide, and aluminium oxide are well-established in the industry. They are typically utilized in specialized areas where their benefits justify the expense.

On the other hand, metallic ball bearings require regular lubrication to prevent rust and deformation from friction and heat. Sealed ball bearings, in particular, need lubrication to keep the seals from becoming porous, which can lead to grease leakage and dry operation. Stainless steel ball bearings, although resistant to corrosion, come with a higher price tag compared to their plastic counterparts, making them a less economical choice for some applications.