Spherical Plain Bearings Ge80es-2RS Ge90es-2RS Ge100es-2RS Ge110es-2RS Ge120es-2RS Ge140es-2RS Ge160es-2RS Ge180es-2RS Ge200es-2RS Ge220es-2RS Ge240es-2RS

• Customization: Available
• Customized: Non-Customized
• Standard Parts: Yes
• Model NO.: Spherical Plain Bearings
• Universal: No
• Type: Bearing Roller
• Material: Chrome Steel, Chrome Steel Gcr15
• Vibration: Zv1 Zv2 Zv3
• Hardness: HRC60--62
• Cage: Steel Nylon Brass
• Service: OEM
• Grease: Sheel Great Wall
• Precision: P0 P6 P5
• Package: Industry or Single Box
• Transport Package: Industry or Single Box
• Specification: Standard
• Trademark: UJK
• Origin: China
• HS Code: 84821020
• Production Capacity: 100000

Product Description

  

Product Description

UJK Spherical Plain Bearings: Precision Articulation for Heavy-Duty Motion Control

UJK spherical plain bearings (also called joint bearings) enable precise angular misalignment (±3°-15°) and rotational/swiveling motion under extreme loads, vibration, and harsh environments. Designed with a spherical sliding contact surface (inner ring + outer ring), they eliminate rolling elements to deliver unmatched impact resistance and durability where conventional ball/roller bearings fail.

Key Advantages & Design Types

Feature	Radial Type (GE/GEM)	Angular Contact Type (SI/SAC)
Load Direction	Radial + Light Axial	Combined Radial + Heavy Unidirectional Axial
Misalignment	±10°-15°	±3°-8°
Friction Reduction	PTFE/Glass Fiber Composite Liner (Self-Lubricating)	Maintenance-Free Metallic Sliding Surface
Robustness	Shock Load Resistant (3× Higher vs. Roller Bearings)	Corrosion-Resistant (Stainless Steel Options)
Installation	Simple Press-Fit Housing	Flanged/Threaded Outer Ring for Secure Mounting

 

Core Product Series & Specifications

(Conforms to ISO 12240 & DIN 648 standards)

Series	Structure	Bore Range (mm)	Static Load (C)	Dynamic Load (C)	Liner Material	Applications
GE..C/E	Radial, Self-Lubricating	6-300	8-4,500 kN	3-1,800 kN	PTFE + Fiber Composite	Hydraulic Cylinders, Valves
GEP..FS	Radial, Sealed	10-120	12-1,200 kN	5-480 kN	PTFE + Bronze Sintered	Agriculture Machinery (Pivots)
SI..ES	Angular Contact	15-200	25-3,800 kN	10-1,500 kN	Hardened Steel/SS304	Crane Hooks, Linkages
SAC..D	Axial + Angular	20-180	40-4,200 kN	16-1,700 kN	CuZn25Al5 Bronze	Construction Boom Joints
GX..T/K	Rod Ends	M6-M48	2-180 kN	0.8-72 kN	PTFE/Chromium Steel	Steering Systems, Actuators

 

Critical Technical Highlights

1. Self-Lubricating Innovation

   • GE..C Series: Embedded PTFE/fiber liners operate at -40°C to +260°C without relubrication.

   • Dry-Running Capability: Ideal for food/pharma applications where oil/grease is prohibited.

2. Extreme Environment Resilience

   • Corrosion Resistance: 316L stainless steel options for marine/chemical exposure.

   • Sealed Variants (GEP..FS): Triple-lip seals block abrasive particles in mining/construction.

3. Precision Machining

   • Spherical surfaces ground to ≤0.002 mm tolerance for smooth articulation.

   • Hardened raceways (HRC 58-62) resist denting under impact loads.

 

Typical Industrial Applications

• Heavy Machinery: Excavator boom joints (SAC series), conveyor tensioners (GE series).

• Automotive: Suspension linkages (GX rod ends), clutch release bearings.

• Aerospace: Landing gear pivots, flap actuators (SiCr-coated variants).

• Renewable Energy: Pitch/yaw bearings in wind turbines (GEP..FS sealed units).

• Robotics: Articulated arm joints requiring ±15° misalignment.