SKFGEZ 108 ES 2RSRadial Spherical Plain Bearing – 1-1/2 in Bore, 2-7/16 in OD, Steel on Steel, Contact Seals Both Sides, Relubricatable

Product Description

What this part is: SKF GEZ 108 ES-2RS is a radial spherical plain bearing with steel-on-steel sliding surfaces and contact seals on both sides. Bore Diameter: 1.5000 in (38.100 mm). Outside Diameter: 2.4375 in (61.913 mm). Overall Width: 1.3120 in (33.325 mm). Outer ring width: 1.1250 in (28.575 mm). Static Load Rating: 375,000 N. Closure Type: Contact seals both sides. Bearing Material: Steel on steel. Bore Type: Straight. Lubricant: Grease or oil. Series: GEZ. Base Number: GEZ 108 ES. Unit Quantity: 1 Pc. Decoding the designation: GEZ — SKF’s inch-series radial spherical plain bearing, steel inner ring sliding directly on a steel outer ring. 108 — bore code in sixteenths of an inch, so 108 gives a 1-1/2 in bore. ES — the extended-width inner ring execution. 2RS — contact seals on both sides, double-lip. What these specs mean in practice: Static Load Rating: 375,000 N. A spherical plain bearing carries load across a large curved sliding area rather than through a ball or roller path, which is what puts a 375,000 N static rating into a 2-7/16 in outside diameter. The spherical interface lets the inner ring swivel inside the outer ring, so the bearing takes shaft misalignment and slow oscillating motion in linkages, cylinder rod eyes and pivot joints. Steel-on-steel sliding surfaces are the maintenance-lubricated construction: both rings carry lubrication holes and an annular groove, so grease reaches the sliding face in service. Double-lip contact seals on both sides hold that grease at the interface and keep abrasive contamination out of the sliding gap. Mounting data: Bore Diameter: 1.5000 in (38.100 mm). Outside Diameter: 2.4375 in (61.913 mm). Overall Width: 1.3120 in (33.325 mm). Outer ring width: 1.1250 in (28.575 mm). The inner ring stands proud of the outer ring on both faces, so the housing bore is 1.1250 in wide and the shaft clamp bears on the wider inner ring. Quantity and configuration: Unit Quantity: 1 Pc. One complete sealed bearing, inner ring and outer ring as an assembly. Interchange guidance: The same bearing is written GEZ 108 ES-2RS, GEZ-108-ES-2RS, GEZ108ES-2RS and GEZ108. Cross-Reference 1: SKF GEZ 108 ES-2RS. Cross-Reference 2: SKF GEZ 108 ES (related, unsealed). Cross-Reference 3: SKF GEZM 108 ES-2RS (related, PTFE composite sliding surface). Cross-Reference 4: SKF GEZH 108 ES-2RS (related, hardened chrome against PTFE). Cross-Reference 5: RBC B24 series (related, inch spherical plain, 1-1/2 in bore). The GEZM and GEZH executions share the 1-1/2 in bore and the 2-7/16 in outside diameter and change the sliding-surface pair, which changes the friction, the load rating and the relubrication regime, so they are related sizes rather than direct interchanges.