Design Principles

The design principle of pillow block bearings is a combination of a spherical outer bearing and a bearing housing. The spherical bearing is a type of bearing with an inner ring having an outer spherical surface and a bearing that is preassembled into a housing. The housing is usually a split design, which can be a Pillow Block, Flanged, Hanger, or Take-up design. The outer spherical surface of the bearing contacts the matching spherical inner surface inside the housing, allowing the unit some freedom to adjust during installation to accommodate for deviations or bending of the shaft.

Performance Features

The performance features of pillow block bearings include:

• Self-adjusting: The spherical outer bearing can adjust itself to accommodate for misalignment of the shaft.
• Easy to install: The housing design makes bearing installation and replacement easy.
• Versatile mounting options: Different types of housings can accommodate various mounting needs.
• Protection: The housing provides good protection, reducing environmental impact on the bearing.
• Loading capacity: Compared to other types of bearings, spherical bearings may have lower loading capacity, but they are suitable for medium load applications.

Application Scenarios

Pillow block bearings are suitable for various scenarios, especially those that require adjustment for misalignment errors, such as:

• Agricultural machinery: Such as tractors, combine harvesters, etc.
• Conveying systems: Such as belt conveyors, roller conveyors, etc.
• Wind power generation: Certain rotating parts within wind turbines.
• Food processing and packaging machinery: Environments with high cleanliness and maintenance requirements.
• Construction equipment: Such as cement mixers, etc.
• Textile machinery: Support and positioning for various rotating parts.
• Pumps and fans: Securing pumps and fans while allowing for some degree of misalignment.