Spherical Plain Bearings Ge 100 Es Ge 15 Es Ge 16 Es Ge 17 Es Ge 25 Es Ge 30 Es Ge 40 Es Ge 50 Es 2RS Ge 60 Es Ge 60 Es 2RS Ge 70 Es Ge 80 Es Ge
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| Customization: | Available |
|---|---|
| Customized: | Non-Customized |
| Standard Parts: | Yes |
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Basic Info.
- Model NO.
- ge 100 es ge 15 es ge 16 es ge 17 es ge 25 es
- 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

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
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Self-Lubricating Innovation
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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.
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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.
-
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Precision Machining
-
Spherical surfaces ground to ≤0.002 mm tolerance for smooth articulation.
-
Hardened raceways (HRC 58-62) resist denting under impact loads.
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Typical Industrial Applications
-
Heavy Machinery: Excavator boom joints (SAC series), conveyor tensioners (GE series).
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Automotive: Suspension linkages (GX rod ends), clutch release bearings.
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Aerospace: Landing gear pivots, flap actuators (SiCr-coated variants).
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Renewable Energy: Pitch/yaw bearings in wind turbines (GEP..FS sealed units).
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Robotics: Articulated arm joints requiring ±15° misalignment.




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