ZKL manufactures nearly three-tonne bearings for the energy sector | ZKL Group
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ZKL manufactures nearly three-tonne bearings for the energy sector

ZKL manufactures nearly three-tonne bearings for the energy sector

In September, ZKL manufactured three large-size spherical roller thrust bearings 294/900EM NF for a demanding application in the energy sector. The bearings will be used in air preheaters at thermal power plants, where they must operate reliably under high loads and demanding operating conditions.

Each bearing weighs nearly three tonnes. Their size and weight represent a significant manufacturing challenge and demonstrate ZKL’s capabilities in the field of large-size thrust bearings.

Designed for demanding energy applications

Bearings used in air preheaters operate at low speeds and under high axial loads, while also being exposed to radial forces. The equipment must also withstand significant temperature fluctuations, which can reach up to 200 °C, as well as an environment with a risk of corrosion and abrasion.

For this application, the 294 series in the New Force design was selected, featuring optimized internal geometry. Spherical roller thrust bearings in this series are designed to accommodate very high axial loads combined with radial forces and can compensate for misalignment of up to 3°.

The New Force design provides higher dynamic and static load ratings, longer operating life and increased reliability under demanding operating conditions. Detailed technical specifications of the 294/900EM NF bearing are available in the product sheet.

Another delivery for a long-term partner

The delivery of the 294/900EM NF bearings follows previous projects for a long-term ZKL partner in the Asian energy sector. In the past, ZKL has also manufactured other sizes of large-size spherical roller thrust bearings for this partner, including the 294/950EM NF, the largest spherical roller thrust bearing manufactured by ZKL.

Repeated deliveries for the same application demonstrate ZKL’s experience in the design and manufacture of large-size spherical roller thrust bearings for the energy sector and other industries where high load-carrying capacity, long service life and reliable operation under demanding conditions are essential.