Timken Plain Bearings

Ideal for static oscillatory applications where moderate misalignment may be common.

Spherical Plain Bearings

Spherical plain bearings can carry high-capacity radial and axial loads in a small envelope due to a large contact area and ideal for static oscillatory applications found in the mining and construction industries.

Radial Spherical Plain Bearings	Timken’s spherical plain bearings (SPBs), or bushings, are metal-on-metal bearings consisting of a spherically ground inner ring housed in a mating outer ring without any rolling elements.  While all plain bearings are precision ground and made from through-hardened steel, custom orders are available and can include special materials, clearances, surface finishes or configurations to accommodate unique applications. Size range: Available from 12.7 mm – 600 mm (0.500 in. to 23.622 in.) bore Design Attributes Rings manufactured from hardened steel help deliver consistent, reliable performance. Phosphate-treated rings coated with molybdenum disulfide (MoS2) minimize friction of contacting surfaces. Simplified housing and shaft designs reduce installation time. Applications A-frames, dump cylinders, front and rear struts, and steering cylinders for mining trucks Equalizer track bars, lift and tilt cylinders, push blades, trunnion balls and ripper blades for bulldozers Articulated joint upper and lower steering cylinders and boom and bucket cylinders for wheel loaders Stick and bucket cylinders for hydraulic excavators Additional applications for space shuttles, heavy movable structures and miscellaneous vehicles
Radial Spherical Plain Bearings with Lip Seals	This series of plain bearings is similar to the SF and FS types, but also includes lip seals that are retained in the outer ring and withstand high grease pressures during lubrication. These lip seals assure full distribution of the lubricant to all bearing surfaces and protect against internal contamination.  While all of our plain bearings are precision ground and made from through-hardened steel, custom orders are available and can include special materials, clearances, surface finishes or configurations to accommodate unique applications. Available in inch and metric sizes from 12.7mm to 600mm (.5 in. to 23.622 in.) bore Design Attributes Rings manufactured from hardened steel help deliver consistent, reliable performance. Phosphate-treated rings coated with molybdenum disulfide (MoS2) minimize friction of contacting surfaces. Simplified housing and shaft designs reduce installation time. Lip seals provide even lubricant distribution and protection from contaminants. Designed for interchangability with SF and FS series. Applications A-frames, dump cylinders, front and rear struts, and steering cylinders for mining trucks Equalizer track bars, lift and tilt cylinders, push blades, trunnion balls and ripper blades for bulldozers Articulated joint upper and lower steering cylinders and boom and bucket cylinders for wheel loaders Stick and bucket cylinders for hydraulic excavators Additional applications for space shuttles, heavy movable structures and miscellaneous vehicles
Angular Contact Thrust Spherical Plain Bearings	Timken’s spherical plain bearings (SPBs), or bushings, are metal-on-metal bearings consisting of a spherically ground inner ring housed in a mating outer ring without any rolling elements.  While all plain bearings are precision ground and made from through-hardened steel, custom orders are available and can include special materials, clearances, surface finishes or configurations to accommodate unique applications.  Our SBT and SBDT designs feature lubricating holes and grooves in the outer ring for easy relubrication through the housing. Available in inch and metric sizes from 12.7 mm to 600 mm (.5 in. to 23.622 in.) bore Design Attributes Rings manufactured from hardened steel help deliver consistent, reliable performance. Phosphate-treated rings coated with molybdenum disulfide (MoS2) minimize friction of contacting surfaces. Simplified housing and shaft designs reduce installation time. Applications A-frames, dump cylinders, front and rear struts, and steering cylinders for mining trucks Equalizer track bars, lift and tilt cylinders, push blades, trunnion balls and ripper blades for bulldozers Articulated joint upper and lower steering cylinders and boom and bucket cylinders for wheel loaders Stick and bucket cylinders for hydraulic excavators Additional applications for space shuttles, heavy movable structures and miscellaneous vehicles

Poly-Round® Bearings

Poly-Round Bearings

Poly-Round® bearings are plain bearings that are made of high performance bearing-grade polymer materials or specialty metal alloys. The material incorporates lubricity into its composition, allowing the unit to operate as a bearing without any grease (Class III plane bearings). ‘No grease’ eliminates the necessity of seals or shields. Advantages of Poly-Round® bearings include: ZERO grease Completely non-corrosive Sanitary: the only USDA-Accepted bearings available Nothing to contaminate process Unaffected by washdown or process moisture Eliminate seals and shields Reliable operation: predictable change-out Very low maintenance Ideal for HACCP/HARPC programs