SKF NN 3020 KTN9/SP cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Decoding SKF NN 3020 KTN9/SP
- NN 30Series
- Cylindrical roller bearings, NN 30 series. Series differ in outside diameter and width even when the bore is the same.
- 20Bore
- Bore 100 mm (20 × 5).
- KTN9/SPSuffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NN 3020 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF NN 3020 KTN9/SP belongs to cylindrical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for NN 3020 KTN9/SP and any equivalents.
SKF NN series cylindrical roller bearings are double-row, high-precision components built to carry heavy radial loads at considerable speeds. They suit machine tools, transmission equipment and rolling mill rolls. MR Industrial Accessories supplies this SKF line, and we help you select the right bearing for the job.
Reading the designation helps you confirm what you are ordering. Take NN 3017 KTN9/SP: NN identifies a double-row cylindrical roller bearing. The 3017 is the size code, which in the 30 series sets bore and outer diameter. KTN9 points to a polyamide cage with a lubrication groove. The /SP suffix denotes special precision tolerance for applications that demand high accuracy. The same structure applies to NN 3019 KTN9/SP and NN 3026 KTN9/SP, with only the size changing.
These bearings appear in machine tool spindles where precision and rigidity matter, and in gearboxes, pumps, compressors and mining equipment. Their capacity for heavy radial loads and high speeds makes them a fit for steel, cement and power plants, as well as automotive transmissions and differentials. Configurations can be adapted to the requirements of each piece of equipment.
Selection comes down to radial load, operating speed and the environment. Where dust or moisture is present, add sealing protection. Correct lubrication prevents premature wear, and high-quality grease is often used. Shaft and housing alignment must be precise to avoid added stresses. Internal clearance also affects performance; the wrong clearance can lead to vibration or overheating. Follow the manufacturer's mounting recommendations.
On equivalences, SKF NN series bearings can be replaced by products from other manufacturers that follow the same dimensions and tolerances. Check that the technical specifications match, particularly load capacity and precision. Not every bearing is directly interchangeable, since cage design or lubrication type may differ. Consult a specialist before substituting a bearing.
For a quote on these SKF cylindrical roller bearings, send the exact part number by WhatsApp or email. We help you choose the right component and suggest equivalents when needed, so you can avoid unplanned downtime.
Dimensions
- Bore
- 100mm
Frequently asked questions
- What does the KTN9 suffix mean on an SKF NN bearing?
- KTN9 indicates a polyamide cage with a lubrication groove. This supports better lubricant flow and reduces wear in high-speed applications.
- How is the NN series different from other cylindrical roller bearings?
- The NN series has two rows of rollers, which allows it to withstand higher radial loads and greater rigidity. It is suited to precision applications such as machine tool spindles.
- How do I know if I need a bearing with /SP tolerance?
- /SP tolerance is a special precision specification required where dimensional and rotational accuracy are critical, such as machine tool spindles or measuring equipment. If your equipment demands high precision, this tolerance is the right one.