
INA 204-XL-NPP-B y-bearing (insert bearing)
- Brand
- INA
- Category
- Bearings
- Subcategory
- Y-bearing (insert bearing)
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
INA 204-XL-NPP-B is a reference of y-bearing (insert bearing), within Bearings. Request a quote for 204-XL-NPP-B via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The INA Y-bearing series NPP-B is an insert with a spherical outer ring, contact seal and screw locking, designed to be mounted in split plummer block or flanged housings. It is used in equipment where the shaft rotates at moderate speeds and the lubricant needs protection from dust and moisture. MR Accesorios Industriales sells this line in Buenos Aires, Argentina, with technical advice to choose the right size.
The designation of the NPP-B series is read in parts: the initial number indicates the bore diameter, and the XL, NPP and B suffixes define the design and sealing. For example, a 201-XL-NPP-B corresponds to a 12 mm bore; a 205-XL-NPP-B, to 25 mm; and a 208-XL-NPP-B, to 40 mm. The NPP abbreviation indicates a double contact seal, and the B, the type of screw locking on the inner ring. Knowing this logic allows you to order the exact code without confusion.
In Argentine industry, these bearings appear in conveyors in food plants, packaging machines, industrial washing equipment, mixers and ventilation systems. They are also found in agricultural implements and in processing lines where the environment has dust or moisture. Being inserts, they are mounted in split plummer block, flanged or take-up housings, which simplifies replacement and alignment in equipment with long or hard-to-reach shafts.
To select the right Y-bearing, take into account the shaft diameter, the type of load and the environmental conditions. The NPP-B seal with contact lip protects against particles and splashes, but if there is abundant water or frequent washing, additional seals should be evaluated. Mounting requires cleaning the shaft, checking that it has no burrs and tightening the locking screws with the right wrench. Proper lubrication and careful alignment extend the service life of the insert.
Insert bearings are available from different brands with equivalent nomenclatures. When comparing, check that the main dimensions, the type of locking and the sealing match, because a code from another brand does not always directly replace an NPP-B. At MR Accesorios Industriales we can guide you on compatibilities and suitable options for your equipment.
If you need an INA Y-bearing series NPP-B, send us the full code or the shaft dimensions on WhatsApp. We will quote you shortly and help you confirm that the variant is the right one for your application.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the abbreviation NPP-B mean in an INA Y-bearing?
- NPP indicates that the bearing has a double contact seal, a protection that retains the lubricant and blocks the entry of dust and moisture. The final B refers to the screw locking system on the inner ring, which allows it to be mounted on the shaft and tightened with a wrench.
- How do I choose the right size for my equipment?
- You need to measure the shaft diameter where the insert is mounted. The bearing code includes that diameter in the first digits: for example, 205 corresponds to 25 mm. If you have doubts, send us the shaft dimension and the housing model on WhatsApp and we will advise you.
- Can it be replaced by a bearing from another brand?
- In many cases yes, but it is not enough for the code to be similar. You have to check diameter, width, type of locking and sealing. Nomenclatures change between manufacturers, so it is best to compare the critical dimensions before replacing. At MR we help you validate the equivalence.

