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Radial shaft seal SKF 42X56X8 CRW1 R
- Manufacturer Part Number
- 42X56X8 CRW1 R
- Brand
- SKFOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
SKF 42X56X8 CRW1 R is a radial shaft seal reference, within Seals. Request a quote for 42X56X8 CRW1 R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF radial shaft seals of the CRW1 R series are single-lip seals with a spring, designed to prevent lubricant leaks and the ingress of contaminants on rotating shafts. They are used in gearboxes, pumps, electric motors and a wide variety of industrial equipment. MR Accesorios Industriales markets this line as part of its sealing range for maintenance and repair.
The designation of these seals combines the main dimensions with the construction type. For example, 12X22X7 CRW1 R indicates a shaft diameter of 12 mm, an outside diameter of 22 mm and a width of 7 mm. The suffix CRW1 identifies the lip geometry and material, while the final R indicates that the lip is made of nitrile rubber with a steel spring. This nomenclature allows you to quickly identify the size and features of the seal.
In Argentine industry, these seals are used in the repair of gearboxes, centrifugal pumps, electric motors, compressors and transmission equipment. They are common in food, chemical and petrochemical plants and in the metalworking sector. Their function is to retain oil or grease inside the assembly and block dust, water or particles that could damage bearings and gears.
To select the right seal, check the shaft diameter, the housing bore diameter and the available width. The CRW1 R series accepts moderate peripheral speeds and operating temperatures typical of nitrile. During installation, lubricate the lip, avoid damaging it with burrs and ensure alignment perpendicular to the shaft. Correct installation extends the service life of the seal and protects the internal components.
SKF radial shaft seals are interchangeable with equivalent products from other recognized brands, as long as the dimensions and lip type match. It is not necessary to look for an identical part number: it is enough to respect the dimensions and service conditions. MR Accesorios Industriales markets this line as an official brand, and can advise you if you have doubts about interchangeability.
If you need a quote for an SKF CRW1 R radial shaft seal, send us the complete part number on WhatsApp. At MR Accesorios Industriales we will reply with the technical information so you can move forward with your maintenance.
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 CRW1 R mean on an SKF seal?
- CRW1 identifies the lip design and the body material, while R indicates that the lip is made of nitrile rubber with a steel spring. This combination is suitable for retaining oil and grease on rotating shafts.
- How do I choose the right radial shaft seal?
- You need to know the shaft diameter, the housing outside diameter and the width. With those dimensions and the lip type, you select the corresponding part number. If you have doubts, ask us on WhatsApp.
- Are SKF CRW1 R seals interchangeable with other brands?
- Yes, as long as the dimensions and lip type match. The same manufacturer part number is not required; respect the dimensions and operating conditions. MR can advise you on interchangeability.

