SKF SIL 15 ES spherical plain bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical plain bearings and rod ends
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Description
SKF SIL 15 ES 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 SIL 15 ES and any equivalents.
SKF SIL ES series rod end bearings combine a spherical plain bearing with a female-threaded housing, allowing angular misalignment and oscillating movement in linkages, cylinders, and steering systems. MR supplies this line to industrial users in the US, Canada, Mexico, and South America, with support for size selection and equivalent identification.
The series code breaks down as follows: SIL denotes a rod end with female thread, while ES indicates a steel-on-steel sliding surface with a lubrication groove. Bore diameters in the examples SIL 15 ES, SIL 17 ES, SIL 20 ES, SIL 25 ES, and SIL 30 ES range from 15 mm to 30 mm. Larger bore numbers correspond to higher load capacity and larger thread sizes. Always check the data sheet for exact bore, width, and thread dimensions.
Common applications include hydraulic and pneumatic cylinders, steering arms, suspension components, conveyors, and agricultural equipment. The bearing's ability to oscillate in any direction makes it suitable for points with misalignment between connected parts. Industries such as metallurgy, food processing, automotive, and earthmoving often use these rod ends in bottling, packaging, and material handling machinery.
For selection, consider radial and axial load, oscillation angle, and environmental conditions. In dusty or wet environments, choose versions with additional seals. Regular lubrication with lithium grease extends service life. During installation, ensure the thread is clean and undamaged, tighten with the proper wrench without forcing, and maintain correct alignment between the rod and housing to avoid lateral stress. For continuous motion, verify the permissible radial clearance.
When replacing, note that SKF SIL ES rod ends may interchange with similar series from other brands designated GE or POS, but only if dimensions and load capacity match. Nomenclature varies by manufacturer, so compare thread type, material, and surface treatment before substitution. The MR team can assist in verifying interchangeability and suggesting alternatives.
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 the SIL designation mean in an SKF rod end bearing?
- SIL indicates a rod end bearing with a female thread. The ES suffix denotes a steel-on-steel sliding surface with a lubrication groove. The number, such as 15 or 20, is the bore diameter in millimeters.
- How do I choose between a SIL and an SA rod end bearing?
- The difference is thread type: SIL has a female thread, SA has a male thread. Choose based on mounting space and the rod available. Load capacity is the same for the same bore diameter.
- How often should SIL ES rod end bearings be lubricated?
- Lubrication frequency depends on conditions. In clean environments, every 500 hours; in dusty or moist conditions, every 100 hours. Use lithium grease and ensure the lubrication groove is clean before applying.