Durable Spherical Plain Bearings from China Suppliers - High-Quality Bearings Manufacturer at Our Factory
Key Features
1. Self-Aligning Capability
· Compensates for static and dynamic misalignment between shaft and housing.
· Eliminates edge stress caused by installation errors or shaft deflection.
2. Load Capacity
· Radial Type: Primarily handles radial loads (e.g., GE…E series).
· Angular Contact Type: Supports combined radial and axial loads (e.g., GAC…F series).
· Thrust Type: Designed for pure axial loads (e.g., GX…F series).
3. Sliding Contact Design
· Utilizes sliding motion (not rolling elements), making them ideal for low-speed, high-load applications.
· Low rotational speed requirement (typically < 100 rpm).
4. Maintenance Options
· Maintenance-Free: Lined with self-lubricating materials (PTFE/fiber composite).
· Lubricatable: Equipped with grease fittings for periodic relubrication (suffix -2RS or -C).
Structure & Materials
· Inner Ring: Hardened bearing steel (e.g., GCr15) with spherical outer surface.
· Outer Ring: Carbon steel with spherical inner surface.
· Lining Material:
PTFE Composite: For dry or low-lubrication environments.
Phosphor Bronze: For high-temperature applications.
Nylon/PA66: Lightweight and corrosion-resistant.
Types & Variants
1. Radial Spherical Plain Bearings
· Standard type (e.g., GE series).
· With extended inner ring (e.g., GEEW series).
2. Angular Contact Spherical Plain Bearings
· For combined loads (e.g., GAC series).
3. Thrust Spherical Plain Bearings
· For axial loads only (e.g., GX series).
4. Special Types
· Rod Ends: Integrated with threaded shafts (e.g., SI…E series).
· Maintenance-Free: Pre-lubricated and sealed (e.g., GE…ES series).
Applications
· Industrial Machinery: Hydraulic cylinders, piston pumps, injection molding machines.
· Automotive: Steering systems, suspension linkages.
· Agriculture: Harvesters, tractor implements.
· Construction: Excavator booms, crane joints.
· Aerospace: Landing gear, control surface linkages.
Technical Specifications
Misalignment Tolerance: ±5° to ±15° (varies by series).
Operating Temperature:
Standard: -30°C to +80°C.
High-Temperature: Up to +300°C (with special materials).
Load Direction: Radial, axial, or combined.
Standards: ISO 12240-1, DIN 64807.
Selection Guidelines
1. Load Type: Confirm radial/axial/combined load requirements.
2. Misalignment: Determine angular compensation needs.
3. Speed: Suitable for low-speed applications (< 100 rpm).
4. Environment: Choose seals (e.g., -2RS for rubber seals) or corrosion-resistant coatings.
5. Lubrication: Opt for maintenance-free designs in inaccessible or harsh environments.
Advantages
· Reduced Maintenance: Self-lubricating options eliminate relubrication needs.
· High Durability: Resists shock loads and vibrations.
· Compact Design: Saves space compared to rolling-element bearings.
· Cost-Effective: Long service life under extreme conditions.