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Radial shaft seal SKF 38X74X11 CRWA1 R
- Manufacturer Part Number
- 38X74X11 CRWA1 R
- Brand
- SKFOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
SKF 38X74X11 CRWA1 R is a radial shaft seal reference, within Seals. Request a quote for 38X74X11 CRWA1 R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF radial shaft seals from the CRWA1 R line are lip seals designed for rotating shafts. Their function is to retain lubricant and exclude contaminants in gearboxes, pumps, electric motors and reducers. The CRWA1 R designation indicates a profile with a sealing lip and spring, suitable for applications requiring low friction and good wear resistance. They are mounted in cylindrical housings and fit shafts with specific tolerances. MR Accesorios Industriales carries this line as an official brand.
The designation of these seals follows the format inner diameter x outer diameter x width, followed by the series code. For example, 16X40X7 CRWA1 R indicates a seal for a 16 mm shaft, 40 mm housing and 7 mm width. The suffix CRWA1 R identifies the lip geometry and the spring type. In the series, the number 1 usually indicates a single-lip section, while the final R refers to the presence of a steel spring. The examples in the table cover a size range from 16 mm to 90 mm inner diameter.
These seals are used in a wide variety of industrial equipment in Argentina: speed reducers, centrifugal pumps, electric motors, compressors, machine tools and gear transmissions. They are also present in the food, chemical and petrochemical industries, where reliable sealing prevents oil leaks and the entry of dust or water. Their radial design makes them suitable for shafts rotating at moderate and high speeds, with low pressures on the fluid side.
To correctly select a CRWA1 R seal, take into account the shaft diameter, housing diameter and available width. It is essential to verify the roughness and hardness of the shaft, since a worn or splined shaft can damage the lip. During assembly, lubricate the lip with the same service oil or grease, and insert the seal perpendicular to the shaft to avoid deformation. The alignment between shaft and housing must be precise; excessive misalignment accelerates wear. If the seal incorporates a spring, make sure it remains on the fluid side to be retained.
Regarding equivalences, SKF CRWA1 R seals can be interchanged with products from other brands that follow the same dimensional designation and lip type. Equivalents are commonly found in catalogs from manufacturers such as NAK, TTO or Corteco, but always verify the tolerances and lip material, as they may vary. Interchangeability is not automatic: check that the lip profile, spring and elastomer are compatible with the fluid and operating temperature. If in doubt, consult our technical team.
If you need an SKF CRWA1 R radial shaft seal, send us the complete code or the measurements of your shaft and housing via WhatsApp. At MR Accesorios Industriales we advise you so you choose the correct option and avoid unplanned downtime. With more than 80 years in the market, we back every sale with technical knowledge and personalized attention.
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 CRWA1 R designation mean on an SKF seal?
- CRWA1 R identifies the lip geometry and the spring type. The CRWA series corresponds to radial lip seals with spring, and the number 1 indicates a profile variant. The final R confirms the presence of a steel spring to keep the lip in contact.
- How do I choose the right seal for my application?
- You need to measure the shaft diameter, housing diameter and width. Also consider speed, temperature and fluid type. With that data, select the matching code. If you have doubts, consult us via WhatsApp and we will help you.
- Are SKF CRWA1 R seals interchangeable with other brands?
- They can be if the dimensions and lip type match, but it is not automatic. Verify the elastomer material, the spring and the tolerances. Brands such as NAK or Corteco offer equivalents, but always validate compatibility with the fluid and temperature.

