Product page
Cylindrical roller bearing SKF NN 3019 KTN9/SPW33
- Manufacturer Part Number
- NN 3019 KTN9/SPW33
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
Other brands in this family
- FAG
- NTN
- TIMKEN
Ask us about alternatives. Equivalence is verified for each reference and application.
We respond promptly.
Request your quote via WhatsApp or email, with the quantity and time frame 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 NN 3019 KTN9/SPW33 is a cylindrical roller bearing reference, within Bearings. Request a quote for NN 3019 KTN9/SPW33 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF NN series cylindrical roller bearings are high-precision components designed to withstand high radial loads and considerable speeds. Their double-row design and robust construction make them suitable for demanding industrial applications, such as machine tool spindles, gearboxes and power transmission equipment. At MR Accesorios Industriales we supply this SKF line, an official brand we represent, to provide reliable solutions to Argentine industry.
The NN designation identifies double-row cylindrical roller bearings with a machined brass cage, centered on the inner ring. The following number, for example 3017 in NN 3017 KTN9/SPW33, indicates the size and dimensional series. The suffix KTN9 indicates a window-type brass cage, while /SPW33 specifies a glass fiber reinforced polyamide cage and a retaining ring groove. These codes allow quick identification of the design features of each variant.
These bearings are used in applications requiring high radial load capacity and rigidity, such as main spindles of grinding machines, milling machines and CNC lathes, as well as industrial gearboxes, high-flow pumps and compressors. In Argentina, they are common in the metalworking, automotive and machine tool sectors, where precision and durability are critical to maintaining productivity and reducing unplanned downtime.
To select the right bearing, it is essential to consider radial load, rotational speed and environmental conditions. Mounting requires extreme cleanliness, precise alignment and adequate lubrication, either grease or oil, depending on the application. Sealing and internal clearance must be verified according to the specified tolerances. Incorrect installation can cause vibration, overheating and premature failure, so it is recommended to follow the manufacturer's recommended mounting practices.
Regarding equivalences, SKF NN series bearings can be interchanged with products from other manufacturers that follow the same dimensional and design designation, such as FAG, NSK or NTN, provided that the specified tolerances and clearance are respected. It is important to verify the complete part number and particular features, since small differences in cage or sealing can affect performance. Always consult a specialist before replacing one bearing with another of a different brand.
If you need a quote for an SKF NN series cylindrical roller bearing, at MR Accesorios Industriales we advise you. Send the complete part number via WhatsApp and we will respond promptly with the information you need for your application.
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 KTN9 suffix mean in an NN bearing?
- The KTN9 suffix indicates that the bearing has a machined brass window-type cage, centered on the inner ring. This cage is suitable for high speeds and loads, and is common in precision applications.
- What is the difference between NN and N bearings?
- NN bearings have two rows of cylindrical rollers, which allows them to withstand higher radial loads and greater rigidity. N bearings have a single row and are used in applications with lower loads.
- How is an SKF NN cylindrical roller bearing mounted?
- Mounting requires proper cleanliness, alignment and lubrication. It is recommended to use specific mounting tools and verify internal clearance. To ensure optimal operation, follow the manufacturer's instructions and consult a specialist.