
SKF SYF 50 FM y-bearing unit
- Brand
- SKF
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
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Description
SKF SYF 50 FM belongs to y-bearing unit, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for SYF 50 FM and any equivalents.
A ready-to-mount shaft support from SKF, the SYF FM unit pairs a cast iron housing with a Y-series insert bearing. It carries rotating shafts on fixed frames, handles radial loads and absorbs slight misalignment. Belt drives, conveyors and light to medium-duty machines are typical applications. MR Industrial Accessories supplies this line and helps buyers confirm the right size before ordering.
Reading the code is straightforward. SYF tells you it is a cast iron Y-bearing unit with an insert bearing and screw fixing. The digits after it give the shaft diameter in millimeters, so SYF 20 FM fits a 20 mm shaft. The FM suffix covers the seal design and insert characteristics. Sizes available in this series include SYF 20 FM, SYF 25 FM, SYF 30 FM, SYF 35 FM and SYF 50 FM, each tied to a standard shaft diameter.
You will find these units on conveyors, mixers, fans, pumps and machine tools, as well as in food, textile, wood and transport operations. Agricultural equipment and packaging lines that get washed down often use them too. Because the insert is interchangeable, a worn bearing can be swapped out while the housing stays in place, which keeps maintenance simple.
Selection starts with the shaft diameter and the load type: radial, axial or a combination of both. The FM seal is the choice when dust or moisture is present. At mounting, line up the units correctly and do not hammer on the insert. Many inserts come lubricated for life, which cuts routine maintenance. Bolt the unit to its base and check axial clearance according to how the insert is fixed, either by set screw or eccentric collar.
Units from other makers can serve as equivalents when the key dimensions line up: shaft diameter, center height and hole spacing. Tolerances and the insert fixing method differ between manufacturers, so it pays to measure the original unit before picking a replacement.
For a quote, send the full part number for the SKF SYF FM unit you need. If you do not have it, give us the shaft diameter and a photo of the unit in service and we will help identify it.
Dimensions
- Código universal
- UCPA 210
Frequently asked questions
- What does SYF mean on an SKF unit?
- SYF denotes a cast iron Y-bearing unit that takes an insert bearing and is fixed with screws. The number after SYF is the shaft diameter in millimeters, while FM describes the sealing arrangement and insert features.
- How do I pick the correct SYF FM size?
- Start with the shaft diameter, then look at the load the shaft will carry. Match the unit to that diameter. If dust or moisture is part of the environment, the FM seal is the one to choose. Send us your equipment details if you want a second opinion.
- Is it possible to change only the insert bearing?
- In most cases yes. The insert sits in the housing and can be replaced on its own, so the complete unit does not need to be renewed. Check that the replacement insert matches in dimensions and fixing type.

