NTN KRA047 deep groove ball bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
- Series
- A
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Description
NTN KRA047 belongs to deep groove ball 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 KRA047 and any equivalents.
For radial and axial loads in both directions, the NTN KRA series deep groove ball bearing is a precision option. It fits many industrial machines that need smooth, dependable rotation. The design handles combined loads, which makes it useful in rotating equipment. MR Industrial Accessories supplies this series to customers across the United States and Latin America.
The part number breaks down simply. KRA identifies the series and construction type; the digits that follow give the bore size and position in the A series. So KRA020, KRA025 and KRA030 are different sizes. Reading the code this way lets you match dimensions quickly before you order.
Typical settings include food, textile, chemical and packaging plants, plus power transmission equipment, pumps, fans and conveyors. These bearings suit lines that run at high speed with low maintenance. Because they take combined loads, they work where precision and durability matter.
When selecting, check radial and axial load, rotation speed and the operating environment. Sealing and lubrication are critical: the right seal keeps contamination out and supports service life. During mounting, confirm alignment and internal clearance to avoid extra stress. Use the lubricant the manufacturer recommends for the application.
Deep groove ball bearings from different brands can often be swapped when dimensions and tolerances line up. Always compare the technical specifications before substituting one brand for another. If you are unsure, send us the original part number and we will advise.
To get a quote on the NTN KRA series bearing you need, message us on WhatsApp or email with the complete part number. The team replies promptly and can suggest equivalents or help you choose.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the KRA designation mean on NTN bearings?
- KRA indicates a series of NTN deep groove ball bearings. The numbers that follow show the size and bore diameter. For instance, KRA020 is one specific size in the A series.
- How do I choose the right KRA bearing for my application?
- Look at radial and axial load, speed and the environment. Check bore diameter and dimensions. If you need help, send us the part number or dimensions and we will advise.
- Are KRA bearings interchangeable with other brands?
- They can be interchangeable if dimensions and tolerances match. Always verify the specifications. If you have another brand's part number, consult us and we will indicate the equivalence.