LDK Bearings - Professional bearing manufacturer for all kinds of bearing unit since 1986 



LDK's spherical plain bearings (SPBs), 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 4 mm – 340 mm bore


-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.


-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

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