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Cylindrical roller bearing SKF NN 3005 K/SP
- Manufacturer Part Number
- NN 3005 K/SP
- Brand
- SKFOfficial brand
- Category
- Bearings
- Subcategory
- Cylindrical roller 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 NN 3005 K/SP is a cylindrical roller bearing reference, within Bearings. Request a quote for NN 3005 K/SP via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
SKF cylindrical roller bearings of the NN..K/SP series are high-precision bearings with two rows of cylindrical rollers and a tapered bore. They are designed to support high radial loads and high speeds, with rigidity superior to that of ball bearings. They are used in machine tool spindles, grinding machine heads and other applications demanding maximum rotational accuracy.
The designation NN … K/SP is interpreted as follows: NN indicates a two-row cylindrical roller bearing; the number that follows (for example, in NN 3005 K/SP) defines the size, and the K indicates that the bore is tapered (taper 1:12). The suffix /SP corresponds to a special precision class, with tighter tolerances than standard bearings. In the examples NN 3005 K/SP and NN 3007 K/SP this structure is clearly seen: the size number changes, but the letters identifying the design characteristics remain.
These bearings are used in applications where precision and load capacity are critical. In Argentine industry, they are common in CNC lathe spindles, milling machines, grinding machines and machining centers. They are also found in boring machine heads and in some types of high-demand gearboxes. Their two-row design allows them to support significant radial loads while maintaining high rigidity, resulting in quality surface finishes and long tool life.
To correctly select an NN..K/SP bearing, consider the radial load it will support, the rotational speed and the required precision. The tapered bore allows mounting with a controlled interference fit on a tapered shaft or by means of an adapter sleeve, which facilitates achieving the proper internal clearance. It is essential to verify shaft and housing alignment, and to use clean and adequate lubrication (grease or oil) to ensure service life. Sealing will depend on the environment: in contaminated environments, it is recommended to protect the bearing with additional seals.
Regarding equivalences and interchangeability, SKF bearings of the NN..K/SP series can be replaced by products from other manufacturers that follow the same standardized designation. However, not all bearings with the same designation have exactly the same tolerances or internal characteristics, so it is essential to verify technical specifications before substituting one for another. At MR Accesorios Industriales we supply SKF as an official brand, and we can advise you to find the best option for your application.
If you need a precision cylindrical roller bearing, do not hesitate to contact us. At MR Accesorios Industriales we have more than 80 years of experience in the industry and can help you identify the right product. Send us the complete part number (for example, NN 3005 K/SP) via WhatsApp and we will provide a quote promptly. Our technical team is available to advise you on the selection, mounting and maintenance of your bearings.
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 /SP suffix mean on an SKF NN..K/SP bearing?
- The /SP suffix indicates a special precision class, with tighter dimensional and rotational tolerances than a standard bearing. This makes it suitable for applications requiring high accuracy, such as machine tool spindles.
- Does this bearing have a tapered bore?
- Yes, the letter K in the designation indicates that the bore is tapered with 1:12 taper. This allows mounting with a controlled interference fit on a tapered shaft or by means of an adapter sleeve.
- Where are NN..K/SP series bearings used?
- They are used in high-precision and high-rigidity applications, such as CNC lathe spindles, milling machines, grinding machines and machining centers. Also in boring machine heads and high-demand gearboxes.

