GEG90ES Spherical Plain Bearing
Selection Guide
A spherical plain bearing works through a sphered sliding contact pair with no rolling elements: high load capacity, good shock resistance and self-alignment, able to carry combined radial and axial load, but limited to slow oscillation or slow rotation — never for high-speed rotation. Key selection points: maintenance-required types (steel-on-steel or steel-on-bronze, needing periodic greasing, such as the G series) versus self-lubricating types (steel with a PTFE liner or coated bronze, maintenance-free, such as GE..C and GE..T series); confirm the sphere diameter, bore and width, permissible tilt angle, and whether a rod end version with internal or external thread is required.
Frequently Asked Questions / FAQ
Is RAYSDE GEG90ES available, and what is the MOQ?
GEG90ES is supplied by RAYSDE through ISO 9001:2015 certified partner factories, with both stock and build-to-order options. Standard-part MOQ is tiered by bore: ≤50mm:500 pcs / 51–100mm:100 pcs / 101–300mm:20 pcs / >300mm:4 pcs; non-standard items are quoted per drawing. Send an inquiry for formal pricing and lead time.
What are the technical specifications of RAYSDE GEG90ES?
Key parameters of the GEG90ES Spherical Plain Bearing: bore d=90mm, outer D=150mm, width B=85mm, dynamic load Cr=550kN, static load Cor=2500kN. For the full dimension table, load and speed data, and CAD drawings, please contact RAYSDE.
Which industries and equipment use the GEG90ES Spherical Plain Bearing?
A spherical plain bearing is a sliding bearing used in construction machinery hydraulic cylinders and rod eyes, excavator and loader linkages, hydraulic cylinder pivots, agricultural machinery suspensions, oscillating positions in mining and metallurgical equipment, aerospace actuators, and any hinge point with slow oscillation, heavy shock load and misalignment.
What are the advantages of RAYSDE GEG90ES versus imported brands?
As a supplier partnered with ISO 9001:2015 certified factories, RAYSDE offers GEG90ES at competitive ex-works pricing with shorter lead times than comparable imported brands, plus non-standard customization and OEM support. Partner factories certified to ISO 9001:2015, with 3.1 material certificates available.
Can you provide engineering drawings and material certificates for GEG90ES?
Yes—CAD/DXF/PDF high-precision drawings and 3.1 material certificates (GCr15 bearing steel) for GEG90ES are available on request from RAYSDE.
GEG90ES How do I choose between a spherical plain bearing and a rolling bearing?
Decide from the motion and the load character. A spherical plain bearing works by sliding on a spherical surface and suits slow oscillation, repeated tilting, heavy shock loads and misaligned hinge points; it offers high capacity in a compact envelope but cannot run as a continuous high-speed rotation. Rolling bearings — deep groove ball, spherical roller, tapered roller and so on — suit continuous rotation at higher speed. If your position is a hydraulic cylinder pivot, a linkage joint or a suspension arm, meaning slow oscillation with heavy shock load, choose a spherical plain bearing.
GEG90ES Should I choose a maintenance-required or a self-lubricating spherical plain bearing?
Maintenance-required types (steel-on-steel or steel-on-bronze) need periodic greasing through a nipple and give higher load capacity and better shock resistance, suiting heavy-duty equipment that is easy to service. Self-lubricating types carry a PTFE fabric or coated liner between the rings and need no re-greasing in service, suiting locations that are hard to service, dusty or specified as maintenance-free, though capacity and shock resistance are lower than a maintenance type of the same size. Send us the load, oscillation frequency and service conditions and we will confirm the type.