
SKF 400251 v-ring seal
- Brand
- SKF
- Category
- Seals
- Subcategory
- V-ring seals
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
SKF 400251 is a reference of v-ring seal, within Seals. Request a quote for 400251 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The V-ring seal is a rotary sealing element with a ring shape and a V-shaped lip that mounts on the shaft. Its function is to retain lubricant and block the ingress of dust, water or particles from the outside. It is used in bearing housings, electric motors, pumps, gearboxes and industrial equipment where the shaft rotates and a simple and effective barrier is needed. MR Accesorios Industriales sells the SKF line in Buenos Aires, Argentina.
The designation of these SKF V-ring seals is based on a six-digit numeric code, such as 400050, 400060 or 400124. Each number identifies a size and profile within the family. It does not include series letters or material suffixes in the base code, so to choose the correct seal you must cross-reference the code with the shaft size and the working outside diameter. If you have the old code or the equipment drawing, send it and we will verify it.
In Argentine industry, V-rings appear in electric motors, centrifugal pumps, gearboxes, conveyor belts and process equipment. They mount on the shaft, with the lip resting against the front face of the housing or against a retaining washer. They rotate with the shaft and by centrifugal effect expel dust and splashes. They are common in food plants, paper mills, cement plants and in the agro-industrial sector, where the environment is dirty and humid.
To select a V-ring, take into account the shaft diameter, the rotation speed and the type of contaminant. The lip must rest with a slight interference on the opposite face; if the support is weak, the seal does not close, and if it is excessive, it wears quickly. Lubrication of the lip helps dissipate heat and prolong service life. The alignment between shaft and housing also matters: a large misalignment makes the lip work unevenly. In environments with a lot of water, it is advisable to combine it with a main radial shaft seal.
SKF V-ring seals are interchangeable with equivalent products from other European and Asian brands, as long as the shaft dimensions and lip profile match. There is no universal interchange table: interchangeability is confirmed by measuring the shaft and comparing the working range. At MR Accesorios Industriales we can help you find the right replacement if you send us the original code or the shaft and housing dimensions.
If you need SKF V-ring seals for your equipment, send us the code or shaft size via WhatsApp. At MR Accesorios Industriales we reply with the corresponding reference and coordinate the quote. We also carry radial shaft seals, mechanical seals and other sealing components to complete the maintenance of your machine.
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
- How do I choose the correct V-ring seal for my shaft?
- You need the shaft diameter, the rotation speed and the type of contaminant. With that data the profile and size are defined. If you have the original code, send it and we will cross-reference it with the SKF line to give you the right option.
- Can SKF V-ring seals be replaced by another brand?
- Yes, as long as the shaft dimensions and lip profile match. There is no universal table: equivalence is confirmed by measuring the shaft and comparing the working range. We help you find the replacement.
- What is the difference between a V-ring and a traditional radial shaft seal?
- The V-ring is an axial seal that rotates with the shaft and expels contaminants by centrifugal force. The radial shaft seal is radial and seals against the shaft. They complement each other: in very dirty environments they are used together to protect the bearing.

