The advantage of
GGB Bearings over
needle bearings.
                     Design engineers are increasingly
                      replacing rolling-element bearings
                    with plain bearings in a wide range of applications. Due to the simplicity of their design and cost effectiveness, plain bearings offer a number of distinct advantages. These advantages include space and weight savings, better load assumption, minimal or no maintenance, compensation for misalignment and noise and vibration damping, among others.

GGB invented metal-polymer plain bearings
more than 50 years ago and remains the
global leader in their manufacture and marketing
to this day. As bearing applications have become
ever more demanding, we have met, and in many cases anticipated, them with innovative solutions based on advanced bearing technology
and materials.

                      The chart to the right provides an
                       overview of the general advantages
                       of plain bearings compared with
                     needle-roller bearings.
Needle-Roller Bearings
GGB Plain Bearings
Subject to damage from fatigue
and high shock loads
Greater contact area facilitates higher load capacity and shock loading resistance
Intolerant of misalignment
and therefore prone to
edge-loading damage
Conformable liner more tolerant of misalignment
Bulky (see chart below)Slim one-piece design and smaller housings provide substantial space savings
Heavy (see chart below)Lower mass and smaller housings result in substantial weight savings
Prone to damage
in oscillating conditions
Greater resistance to oscillatory movements improve bearing life
Inertia and high-speed skiddingFrictional characteristics resist skidding and exhibit superior damping
Excessive noiseAbsence of internal moving parts result in quieter performance
Fitting difficulty
and resulting damage
Straightforward press fit into simple machined housings virtually eliminates fitting damage
High cost of bearings, housings, counter surfaces and fixingsCompetitively priced, reduced costs of housings and shaft finishes, elimination of fixings, e.g. snap rings; and more relaxed shaft tolerances
The following comparison is based on relatively small bearings, i.e. 20mm-diameter bore. Space, mass and cost savings increase in direct proportion
to bearing dimensions.
Wall Thickness
Approx. Mass
GGB plain bearing20mm x 23mm x 15mm1.5mm10g
Drawn-cup needle-roller bearing20mm x 26mm x 16mm3.0mm22g