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Stainless steel deep groove ball bearing SKF W 638/4-2ZR
- Manufacturer Part Number
- W 638/4-2ZR
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Stainless steel deep groove ball bearings
Other brands in this category
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF W 638/4-2ZR is a stainless steel deep groove ball bearing reference, within Bearings. Request a quote for W 638/4-2ZR via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF stainless steel deep groove ball bearing is a component designed to withstand radial and axial loads in applications where corrosion is a challenge. Its stainless steel construction offers resistance to oxidation and chemical agents, extending service life in demanding environments. It is ideal for equipment operating with humidity, frequent washdowns or exposure to corrosive substances, such as the food, pharmaceutical or chemical industries. MR Accesorios Industriales supplies this official brand to provide reliable solutions.
The designation W …ZR is interpreted as follows: the prefix W indicates that the bearing is made of stainless steel, while the suffix ZR indicates that it incorporates a double-lip seal. A specific example is W 638/4-2ZR, where the number 638/4 corresponds to the size and series, and the suffix 2ZR specifies two seals. Knowing this nomenclature allows you to quickly identify the product's characteristics and select the right one for your equipment.
These bearings are used in a wide variety of industries in Argentina, such as food, where hygiene and corrosion resistance are critical; chemical, due to exposure to aggressive substances; and pharmaceutical, which requires reliable, contamination-free equipment. They are also found in packaging machinery, material handling and industrial washing systems, where humidity and cleaning products demand durable components.
When selecting a stainless steel bearing, take into account the type of seal: the suffix ZR indicates double-lip seals that protect against the ingress of contaminants and lubricant loss. Verify the compatibility of the lubricant with the working environment and ensure that mounting is carried out with the appropriate tools to avoid damage. Correct alignment and proper fit are essential to maximize bearing service life.
Regarding equivalences and interchangeability, SKF stainless steel bearings can be replaced by products from other brands that meet the same dimensions and technical specifications. It is important to verify tolerances and the type of seal to ensure optimal operation. Always consult compatibility tables and, if in doubt, contact a specialist who can advise you according to your application.
To request a quote for this bearing or any other product, contact MR Accesorios Industriales via WhatsApp. Send the part number or the full designation and we will reply promptly with the information you need. Our technical team is available to help you choose the best option for your equipment or project.
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 suffix ZR mean on an SKF bearing?
- The suffix ZR indicates that the bearing incorporates double-lip seals, which offer improved protection against the ingress of contaminants and lubricant loss. This is especially useful in environments with dust, humidity or chemicals.
- Is this bearing suitable for the food industry?
- Yes, stainless steel bearings are suitable for the food industry due to their resistance to corrosion and cleaning agents. However, it is important to select the appropriate lubricant to comply with industry regulations.
- How can I request a quote?
- You can request a quote by sending the bearing part number or the full designation via WhatsApp. MR Accesorios Industriales will reply promptly with the required information.

