SKF SA 20 ES Rod End Bearing
SKF SA 20 ES is a maintenance required male threaded rod end designed for oscillating movements and accommodating misalignment in various industrial applications, including hydraulic cylinders, construction equipment, and general machinery. It contains a spherical plain bearing with a steel/steel sliding contact surface combination and features a standard male threaded shank for secure attachment to mating components.
SKF SA 20 ES is a maintenance required male threaded rod end designed for oscillating movements and accommodating misalignment in various industrial applications, including hydraulic cylinders, construction equipment, and general machinery. It contains a spherical plain bearing with a steel/steel sliding contact surface combination and features a standard male threaded shank for secure attachment to mating components.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Bore diameter, bearing inner ring (d) | 20 mm |
| Outside diameter, housing eye (d₂ max) | 54 mm |
| Width, bearing inner ring (B) | 16 mm |
| Thread designation (G) | M 20x1.5 (right-hand thread, 6g tolerance) |
| Thread length (h) | 78 mm |
| Maximum tilting angle (α) | 9° |
| Basic dynamic load rating (C) | 30 kN |
| Basic static load rating (C₀) | 42.5 kN |
| Specific dynamic load factor (K) | 100 N/mm² |
| Material constant (Kₘ) | 330 |
| Tribological pairing | Steel/steel |
| Maintenance requirement | Maintenance required (relubricable) |
| Weight | 0.32 kg |
Design Features & Benefits
- Steel/Steel Contact Surface: Provides high load capacity and durability for heavy-duty applications
- Relubricable Design: Features a grease fitting for easy maintenance and extended service life
- Male Threaded Shank: Standard M20x1.5 right-hand thread with 6g tolerance for reliable connection to hydraulic cylinders and other equipment
- Spherical Plain Bearing: Accommodates angular misalignment up to 9° to compensate for installation errors and shaft deflection
- Widened Inner Ring: Enhanced load distribution and stability during operation
- Versatile Application: Suitable for a wide range of industrial sectors requiring oscillating motion with misalignment compensation
Operating Conditions
- Temperature range: -50°C to +200°C
- Radial internal clearance: Normal (standard for industrial applications)
- Mounting: Designed for simple installation with standard tools
- Lubrication: Requires regular relubrication with appropriate grease for optimal performance
Application Areas
- Hydraulic and pneumatic cylinders
- Construction and agricultural machinery
- Material handling equipment
- Industrial automation systems
- General mechanical engineering projects requiring oscillating motion with misalignment compensation
