SKF SA 50 ES-2RS spherical plain bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical plain bearings and rod ends
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Description
SKF SA 50 ES-2RS belongs to spherical plain bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for SA 50 ES-2RS and any equivalents.
The SKF SA..ES-2RS line covers rod end bearings built as spherical joints with a male shank and two elastomer seals. They connect shafts that do not sit perfectly in line and carry moderate radial and axial loads while allowing movement. This makes them a practical choice where a linkage has to pivot freely and still cope with dirt or moisture.
Reading the code helps you order the right part. SA tells you the shank is male. The figure after it is the bore diameter in millimeters, so SA 30 means a 30 mm bore. ES means the inner ring is grooved and fitted with lubrication holes. 2RS means two elastomer seals, one per side, which hold grease in and keep dust and water out. The series runs from SA 30 ES-2RS up to SA 80 ES-2RS, giving a spread of sizes.
You will find these rod ends on farm equipment, earthmoving machines, hydraulic circuits, conveyors and automated systems. They suit seeders, harvesters, trailers and road equipment, where misalignment and weather are part of daily operation. Sliding doors, actuators and steering linkages are other common spots.
When specifying one, start with the bore diameter, then confirm the shank thread and the load the joint will see. The 2RS seals fit dusty or damp locations; in a clean setting where low friction matters, an unsealed version may be worth reviewing. During installation, keep the shank aligned and do not force it into place. Proper lubrication helps the bearing last. The joint tolerates misalignment, but it should not carry heavy loads as the only support unless it is sized for that duty.
Interchange is possible with rod ends from other makers that use the same dimensional designation, including comparable series from INA, NSK or NTN. Confirm tolerances and thread type before substituting. MR supplies SKF and can point you to suitable alternatives.
Send the complete part number by WhatsApp or email and the team will quote it and help you match the size to your equipment. If you prefer another brand, equivalents can be suggested as well.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does 2RS indicate on an SKF rod end?
- It means the rod end carries two elastomer seals, one on each side. They keep lubricant inside and block dust, water and particles from entering, which helps in contaminated conditions.
- How do I pick the right SA..ES-2RS size?
- The number in the designation is the bore diameter in millimeters. Measure the pin or shaft it mounts on and match that figure. Also check the shank thread and the load involved.
- Can another brand replace an SKF rod end?
- Often yes, if the dimensional designation is the same. INA, NSK and NTN list comparable rod ends. Verify tolerances and thread type first, and MR can help you confirm the choice.