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Flange bearing 4 holes NTN ARFU-2S
- Manufacturer Part Number
- ARFU-2S
- Brand
- NTNOfficial distributor
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- ARFU
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Description
NTN ARFU-2S is a flange bearing 4 holes reference, within Bearing housings. Request a quote for ARFU-2S via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NTN ARFU housing is a 4-bolt flange mounted unit with an insert bearing, designed to secure rotating shafts to flat structures. It is used when the shaft must sit perpendicular to the mounting plane and carry moderate radial and axial loads. MR Accesorios Industriales sells this line for plants and workshops throughout Argentina.
The ARFU designation identifies NTN's series of 4-bolt flange housings. The number following the letters indicates the insert bearing size: for example, ARFU-2S corresponds to a housing for a 15 mm shaft, while other sizes in the ARFU series cover larger diameters. The S suffix indicates the insert sealing type, designed to retain lubricant and block contaminants. To choose, send the full part number or the shaft diameter.
These housings appear in belt conveyors, mixers, fans, packaging lines and process lines in food, chemical and materials plants. In Argentina they are seen in grain handling equipment, aggregate processing plants and maintenance workshops replacing worn units. The 4-bolt flange allows rigid fastening onto sheet metal or profile structures, with simple alignment relative to the shaft.
To select the housing, check the shaft diameter, the load type and the environmental conditions. The S seal is suitable where there is dust or splashing; if the environment is more aggressive, other protections should be evaluated. During mounting, seat the flange on a clean, flat surface, tighten the bolts in a cross pattern and check that the shaft turns without effort. The insert is lubricated according to the duty cycle and the grease specified for bearings.
NTN ARFU housings can be interchanged with 4-bolt flange units from other brands, provided the flange dimensions, shaft diameter and insert fastening system match. A similar part number is not enough: the drawings must be compared. If you have another brand's part number or an unidentified part, write to us and we will tell you the compatible equivalent.
If you need the ARFU housing for your equipment, send the part number or shaft size via WhatsApp to MR Accesorios Industriales. We will quote the exact reference and advise you so the unit is properly mounted and lubricated. We handle inquiries from all over the country and reply promptly.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the S suffix mean in the ARFU-2S part number?
- The S suffix indicates the sealing type of the insert bearing. In the ARFU series, that seal is designed to retain lubrication and limit the entry of dust or moisture. If your application has heavy contamination, ask us about variants with greater protection.
- How do I choose the ARFU housing for my shaft?
- You need the shaft diameter and the full unit part number. With that data we will quote the exact reference. If you do not have the part number, send us the shaft size and a photo of the old housing and we will help you identify it.
- Are NTN ARFU housings interchangeable with other brands?
- They can be if the flange dimensions, shaft diameter and insert fastening system match. It is not enough for the part number to be similar. Send us the original part number and we will tell you the compatible equivalent.

