NSK NNU 4932 KRKR cylindrical roller bearing de doble hilera
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
- Series
- NNU
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Decoding NSK NNU 4932 KRKR
- 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).
- KRKRSuffix
- NSK suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
NNU 4932 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NSK NNU 4932 KRKR 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 NNU 4932 KRKR and any equivalents.
The NSK NNU KRKR series covers double row cylindrical roller bearings built to handle heavy radial loads at considerable speed. Two rows of rollers give the bearing high rigidity, which suits demanding industrial duty. MR Industrial Accessories LLC supplies this series and can help you match the right size to your equipment.
Reading the code helps you confirm what you are ordering. NNU identifies a double row cylindrical roller bearing with a flangeless inner ring and a flanged outer ring. The KRKR suffix points to a machined brass cage, roller-centered, plus a special heat stabilization treatment. The number that follows the letters sets the size, as in NNU 4930 KRKR, NNU 4932 KRKR and NNU 4934 KRKR.
Typical service is in steel, cement, mining and machine tool plants, where radial capacity and rigidity matter. You will find them in gearboxes, rolling mills, mills, presses and power transmission equipment. The double row layout lets them take combined loads and moments, though pure radial loads are their main job.
When you select a bearing, look at radial load, rotation speed and the operating environment. The brass cage of the KRKR suffix stands up to high temperatures and shock loads better than a polyamide cage. Mounting calls for precise alignment and correct lubrication, with grease or oil depending on the application. Check internal clearance and the fits on shaft and housing so the rings are not distorted, since poor mounting shortens bearing life.
For equivalents, NSK NNU series bearings interchange with other brands using the same international nomenclature, such as SKF, FAG or NTN, when dimensions and internal design match. Always verify the full part number and tolerances. If you are unsure, send us the original part number and we will point you to a compatible alternative.
To request a quote, message us on WhatsApp or email with the complete part number. The team replies promptly and can suggest equivalents or help you choose.
Dimensions
- Bore
- 160 mm
Frequently asked questions
- What does KRKR mean on an NNU bearing?
- It indicates a machined brass cage, roller-centered, with a special heat treatment for dimensional stabilization. Compared with standard polyamide cages, it handles higher temperatures and greater shock loads.
- Where are NNU series double row bearings used?
- They suit industrial applications needing high radial load capacity and rigidity, such as gearboxes, rolling mills, mills, presses and machine tools, commonly in the steel, cement and mining sectors.
- How do I request a quote for an NNU KRKR bearing?
- Send the complete part number, for example NNU 4930 KRKR, by WhatsApp or email. We reply promptly and can also help you find an equivalent if you have a part number from another brand.