N, NJ, NU, and NUP cylindrical roller bearings for air compressors can also be substituted with full or double row cylindrical roller bearings that have small radial clearance and can handle high radial loads, ensuring accurate radial guidance.
Air compressor angular contact ball bearings are primarily used as thrust bearings and can be installed individually or in a series (in tandem arrangement) to withstand high thrust loads. They are suitable for handling both radial and axial loads in the direction they exist. They can also be used in ammonia medium pumps with FP's cage (pump) and have a contact angle of 40° when bearing suffix "B" is present. Such bearings can handle higher axial loads in pumps, and bearings with seals are also compatible.
The newly designed double-row angular contact ball bearings with ram-hold aerial compressor have been developed for use as thrust bearings. They can be mounted individually or in series, with the series construction being able to handle high thrust loads. These bearings are suitable for both radial and high thrust loads in one direction, making them ideal for ammonia pumps with FP cages. The "B" model, with a contact angle of 40°, can handle even higher thrust loads and is compatible with the newly designed stamping cage that has optimized geometry for better sealing.
For air compressors, a spherical roller bearing is recommended. This type of bearing is capable of withstanding high pressures and can compensate for any machining defects or shaft misalignment. It is able to handle both radial and axial loads. Additionally, it has a self-aligning feature, allowing for up to 2° of misalignment under very high loads. It also maintains its dimensional stability even at operating temperatures of up to 200°C.
Tapered roller bearings for air compressors possess excellent bearing capacity in both axial and radial directions. Additionally, these bearings provide precise radial guidance due to their minimal axial clearance.
Deep groove ball bearings for air compressors are primarily utilized as floating end bearings, although they can also be used as fixed end bearings for high-speed operations. These bearings can even be equipped with a sealed design.
For applications with high N x DM values, grease lubricated deep groove ball bearings are suitable. Depending on the specific use case, these bearings can also offer long-lasting lubrication without the need for re-lubrication.
Four point contact ball bearings for air compressors are mainly employed as thrust bearings. They do not need to bear radial loads but can withstand larger axial loads in two directions, as well as smaller radial loads. The split design of the inner ring in these bearings allows for increased rolling body capacity, thereby enhancing the radial bearing capacity.
Due to the split inner ring structure of these bearings, machined cages enhance their suitability for high-speed transfers. This is achieved through a small axial clearance that ensures precise radial guidance, allowing for a compact bearing design without the need for separate positioning bearings.
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