NTN NN3020 cylindrical roller bearing de doble hilera
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
- Series
- NN
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Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
NSK and NTN: matching part numbers →NTN and RKB: matching part numbers →
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Decoding NTN NN3020
- 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).
NN 3020 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN NN3020 belongs to cylindrical roller bearing de doble hilera, 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 NN3020 and any equivalents.
For assemblies that need to carry heavy radial loads while staying rigid, the NTN NN series double row cylindrical roller bearing is a common choice. It appears in machine tool spindles, gear reducer boxes and power transmission equipment, where precision and durability matter. Two rows of rollers share the load and limit deformation, so the bearing runs steadily under demanding conditions.
The NN prefix identifies a double row cylindrical roller bearing; the number after it sets the size and load capacity. For instance, NN3005, NN3006 and NN3007 are different bore and outside diameter combinations. Suffixes such as K, W33 or C3 tell you about a tapered bore, a lubrication groove or extra internal clearance. Reading these codes correctly is the first step in picking the right bearing.
These bearings show up in milling and lathe spindles, speed reducers, industrial pumps and textile machines. Their rigidity and radial load capacity suit setups that call for precision and resistance to fatigue. Mining equipment, cement plants and steel plants also use them where conditions are severe and reliability is essential.
Selecting an NN series bearing means checking the radial load, rotational speed, lubrication method and internal clearance. Mount it with precise alignment and the right tools so the raceways are not damaged. Grease or oil both work, depending on speed and operating temperature. After mounting, verify clearance and adjust it to the manufacturer's specifications.
NTN NN series bearings can be interchanged with other brands that use the same nomenclature and standardized dimensions. Tolerances and internal clearance can differ between makers, so confirm them before substituting. If you have a part number from another brand or an unidentified bearing, we can point you to a compatible alternative or quote the exact part you need.
To request a quote, send the part number or the dimensions by WhatsApp or email. Our team replies promptly and can suggest equivalents or help you choose the right bearing for your application.
Dimensions
- Bore
- 100 mm
Frequently asked questions
- What does the NN designation mean in a bearing?
- NN indicates a double row cylindrical roller bearing, known for high radial load capacity and rigidity. The number that follows gives the size and dimensions.
- How do I choose the right suffix for my application?
- Suffixes indicate features such as a tapered bore, lubrication grooves or internal clearance. Consider your mounting, lubrication and precision needs. If unsure, send us the complete part number.
- Can I replace an NN bearing from another brand with an NTN one?
- Yes, if the main dimensions and tolerances match. Standardized bearings allow interchangeability, but verify internal clearance and operating conditions. We can help you choose.