NTN NNU4932 cylindrical roller bearing de doble hilera
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Other brands for this category
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Decoding NTN NNU4932
- NNU 49Series
- Cylindrical roller bearings, NNU 49 series. Series differ in outside diameter and width even when the bore is the same.
- 32Bore
- Bore 160 mm (32 × 5).
NNU 4932 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN NNU4932 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 NNU4932 and any equivalents.
When you need a bearing that handles heavy radial forces and runs at high speed, the NTN NNU series is a solid choice. These double row cylindrical roller bearings are common in machine tools, gearboxes, rolling mills, and other industrial equipment where precision and load capacity matter. At MR Industrial Accessories, we quote the exact NNU part number you require.
An NNU bearing has two inner rings and an outer ring without flanges. The number that follows NNU indicates the dimension series. For instance, NNU4920, NNU4921, and NNU4922 all share the same bore diameter but differ in width and load capacity. Suffixes can specify a bronze cage, special heat treatment, or internal clearance, depending on the complete part number.
You will find these bearings in machine tool spindles, high-power gearboxes, rolling mill stands, large electric motors, and mining and cement equipment. They also appear in steel plants, paper mills, petrochemical facilities, and automotive manufacturing. The double row of rollers manages very high radial loads with minimal deformation, making them suitable for assemblies where rigidity is critical.
Selecting an NNU bearing involves the radial load, rotation speed, and required internal clearance. Mounting demands precise alignment of shaft and housing, plus proper lubrication—oil or grease depending on operating conditions. Since the bearing has no seals, the assembly needs external sealing. The machined bronze cage is typical in these series and aids heat dissipation.
NTN NNU bearings can be interchanged with other brands that use the same dimensional nomenclature, such as SKF, FAG, or NSK. The key is to match the complete part number, including cage and clearance suffixes, to ensure compatibility. If you have a part number from another brand, MR Industrial Accessories can identify the exact equivalent and provide a quote.
To get started, send us the NNU part number you need via WhatsApp, along with dimensions or a drawing if available. MR Industrial Accessories responds promptly and helps you choose the best option for your application.
Dimensions
- Bore
- 160mm
Frequently asked questions
- What does the NNU designation mean?
- NNU indicates a double row cylindrical roller bearing with two inner rings and one flangeless outer ring. The following numbers specify the dimension series, and suffixes may denote features like cage type or internal clearance.
- How do I choose the right internal clearance?
- Internal clearance depends on the application. Assemblies with interference fits or high temperatures often need greater clearance, while precision spindles require reduced clearance. Share your equipment data with us for guidance.
- Are they interchangeable with other brands?
- Yes, NTN NNU bearings follow dimensional standards that allow interchangeability with other brands, provided the complete part number and suffixes are respected. Send us the part number from another brand, and we will identify the equivalent.