GGB frequently asked questions relating to plain bearings and self-lubricating bushings

Bearings and Bushings are Made from what Metal?

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GGB produces four different types of bearings, plus bushing blocks, thrust plates and self-aligning bearing housing assemblies.

metal polymer bearings

GGB metal-polymer plain bearings and cylindrical bushings

Metal-polymer plain bearings feature a unique composite structure that consists of a steel or bronze backing for mechanical strength, a porous sintered bronze interlayer for high wear resistance and an anti-friction overlay impregnated with a homogeneous mixture of PTFE and fillers or extruded thermoplastic tape.

The structure and overlay composition of each bearing product is specifically designed to offer distinct properties to meet the performance requirements of different applications.

Engineered plastic BEARINGS

GGB engineered plastic plain bearings and flanged bushings

Engineered plastic bearings are made of a variety of resins compounded with reinforcing fibers and solid lubricant.

Our EP® series of bearings are injection molded, enabling us to offer virtually unlimited dimensions and special designs and features. These bearings provide excellent wear resistance and low friction in both dry and lubricated operating conditions, and offer high dimensional stability, compressive strength and creep resistance, low thermal expansion and good thermal conductivity.

Fiber reinforced composite BEARINGS

GGB Fiber reinforced composite plain bearings and bushings

Fiber reinforced composite bearings typically consist of a filament-wound, fiberglass-impregnated epoxy backing with a variety of low-friction, wear-resistant linings. Their reinforced composite structure supports high static and dynamic loads, and their inert nature makes them ideal for corrosive environments such as seawater.

Environmentally friendly bearings specifically developed for hydropower applications have high load capacity, excellent resistance to shock, edge loading and corrosion, and dimensional stability.

Metal & bimetal BEARINGS - Bronze Bushings

GGB-SHB case hardened steel cylindrical bearings

Metal and bimetal bearings include a broad range of monometallic, bimetallic bearings and sintered bronze bushings, which are ideal for both land-based and under water industrial applications.

Our oil-impregnated solid bronze bearings are designed for use in maintenance-free operations under moderately high speeds and low loads. Designed for lubricated applications, our mono- and bimetallic bearings are suitable for use in a wide range of operating conditions.

bushing blocks & thrust plates

GGB Sical-3D Bushing blocks are bearing assemblies for fluid power industry

Bushing blocks and thrust plates are made of proprietary engineered materials using specialized aluminum alloys and assembled with low-friction, wear-resistant metal-polymer bearings.

Customized assemblies, they are designed in collaboration with customers that specialize in hydraulic external gear pumps and motors, where they enable lightweight, space-saving designs, improve mechanical and volumetric efficiency, reduce noise and vibration and extend service life.

self-aligning bearing assemblies

GGB EXALIGN PB Self-aligning pedestal bearing assembly and housing

Bearing assemblies offset misalignment by up to ± 5° to reduce edge loading and premature wear. Available in various configurations with different housings, GGB self-aligning bearings can be combined with our bearing materials to provide optimal design solutions for numerous applications.

Still have any questions? Please do not hesitate to contact us



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