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NTN NN3011HSK cylindrical roller bearing de doble hilera

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NTN NN3011HSK cylindrical roller bearing de doble hilera

Manufacturer part numberNN3011HSK
Brand
NTN
Category
Bearings
Series
NN
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Decoding NTN NN3011HSK

NN 30Series
Cylindrical roller bearings, NN 30 series. Series differ in outside diameter and width even when the bore is the same.
11Bore
Bore 55 mm (11 × 5).
HSKSuffix
NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.

NN 3011 is the standard ISO basic designation, which sets the bearing type, series and bore.

Description

NTN NN3011HSK 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 NN3011HSK and any equivalents.

Double row cylindrical roller bearings in the NN series with the HSK suffix are precision components built for machine tool spindles and other setups that demand high rigidity and running accuracy. The two rows of cylindrical rollers handle high radial loads with minimal deformation, which makes them a fit for high-speed turning, milling and grinding. MR Industrial Accessories LLC supplies this NTN line to customers across the United States and in several Latin American countries.

Reading the code helps you order the right part. The letters NN identify the double row cylindrical roller series. The number that follows, as in NN3005HSK, NN3006HSK or NN3010HSK, sets the section size. HSK marks an execution with a synthetic material cage and features for high speed and precision. Because each code pairs series and size, always confirm the complete number when you request a quote.

These bearings appear in CNC lathe spindles, machining centers, grinding machines and high-precision milling machines. They also show up in boring heads and machine tool main shafts where running accuracy is critical. In shops doing automotive and capital goods work, dimensional repeatability and spindle rigidity often decide the quality of the finished part.

Selection comes down to radial load, maximum operating speed and mounting type. The NN series can be preloaded and needs an interference fit on the shaft to hold precision. Choose sealing and lubrication for the environment: oil for high speeds or grease for sealed applications. Keeping the supports aligned matters, since misalignment creates parasitic loads that shorten service life.

NTN NN HSK bearings may be listed under equivalent designations from other brands, but suffixes and tolerances do not always line up. When replacing a part, compare main dimensions, precision class and load capacity. If you have another brand's code or an unidentified sample, our team can point you to a compatible alternative or quote the exact size.

To get a quote, send the complete bearing code via WhatsApp or email, for example NN3012HSK, or the dimensions and features shown on your equipment. We reply promptly and can also help you choose or suggest equivalents. Inquiries for other precision cylindrical roller bearing series are welcome as well.

Dimensions

Bore
55 mm

Frequently asked questions

What does the HSK suffix mean on an NN bearing?
HSK indicates a special execution of the bearing, generally tied to a synthetic material cage and features optimized for high speed and precision. Check the full code to confirm compatibility with your spindle.
How do I choose between an NN bearing and a single row one?
The NN double row series provides greater rigidity and radial load capacity in the same space. If your spindle needs high precision and support of combined loads, the double row is usually the way to go. Always review mounting and lubrication conditions.
Can I replace an NN HSK bearing with another brand?
Equivalents exist from other brands, but suffixes and tolerances may differ. For a safe replacement, compare dimensions, precision class and load capacity. Send us the original code and we will quote the appropriate option.
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