GEG...ES GEG...ES-2RS

The GEG...E / ES / ES-2RS series radial spherical plain bearings from TGMB consist of an inner ring with a sphered convex outside diameter and an outer ring with a correspondingly sphered concave inside surface. Compared to the standard GE series with the same bore diameter, this series features a larger outside diameter and wider width to accommodate higher load capacities. This design is engineered to meet demanding conditions involving heavy loads, misalignment between the shaft and housing, or slow-speed oscillating, tilting, and rotating movements. It primarily supports radial loads and combined axial loads. Utilizing a classic "Steel-on-Steel" friction pair, both inner and outer rings are made of high-quality bearing steel (GCr15), undergoing precision processes including hot forging, machining, heat treatment, grinding, and surface phosphating to ensure exceptional wear resistance and fatigue strength.

Technical Highlights:

• Superior Self-Aligning Capability: Automatically compensates for installation center deviations, effectively preventing additional stresses caused by shaft deflection.

• High Impact Resistance: Unlike composite materials, the steel-on-steel structure is more suitable for applications with severe impact and vibration, such as excavators and mining equipment.

• Dry-Film Lubrication Protection: Sliding surfaces are pre-coated with Molybdenum Disulfide (MoS2), providing fundamental anti-friction protection even before the scheduled lubrication cycle. (Pre-coated MoS2 is available upon request).

1. Size Range:

• GEG...E: 4 ~ 12 mm

• GEG...ES: 15 ~ 280 mm

• GEG...ES-2RS: 15 ~ 280 mm

2. Operating Temperature:

• GEG...E: -50°C ~ +150°C

• GEG...ES: -50°C ~ +150°C

• GEG...ES-2RS: -30°C ~ +130°C

3. Designation Explanation:

- Prefix

• GE: Radial Spherical Plain Bearing

• G: Dimension series code

- Suffix

• E: Outer ring with one axial split

• S: Lubrication groove and holes in the rings

• 2RS: Dust seals on both sides

Technical Resources

With high load capacity, wear resistance, and self-aligning capabilities, TGMB GE series bearings are used extensively in complex working environments:

Typical Industry Applications:

• Excavators: Arm and bucket cylinders.

• Loaders: Articulated joints, steering cylinders, boom, and bucket cylinders.

• Bulldozers: Lift/tilt cylinders, blades, track frame pivot shafts, and ripper blades.

• Mining Trucks: Dump cylinders, suspension struts, steering cylinders, and A-frames.

• Agri/Automotive: Shock absorber heads and transmissions.

• Others: Crushers, bridges, locks, aircraft, and various industrial machinery requiring spherical joints.