NTN NA6907R needle roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller bearing
- Series
- NA69
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Description
NTN NA6907R belongs to needle roller 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 NA6907R and any equivalents.
The NTN NA series is a single-row needle roller bearing that combines a machined inner ring with a steel cage. Because its radial section is small, it fits where a ball bearing would not and still carries high radial loads. Typical uses include machine tools, gearboxes, pumps and transmission equipment.
Reading the code helps you order the right part. The letters NA mean a needle roller bearing with an inner ring. The numbers that follow give the bore and the dimension series, so NA49/22R has a 22 mm bore in the 49 series, while NA69/28R has a 28 mm bore in the larger 69 series. The R suffix tells you the cage is riveted steel, a configuration suited to high speeds and moderate temperatures.
These bearings suit machine tool spindles, gearbox and transmission shafts, water and oil pumps, compressors, packaging equipment and automotive production lines. They are a practical choice when the outer diameter is restricted but radial load capacity still matters.
When selecting, check the bore diameter, the load the application requires and the lubrication method. The NA series runs with grease or oil. In dirty environments, add seals. Press the bearing in with the proper tooling and never strike the cage directly. Shaft and housing alignment should be verified so that unwanted axial forces do not shorten service life.
NTN NA series bearings interchange with other brands that use the same dimensional nomenclature. If you only have another manufacturer's number, MR can identify the equivalent, or quote from your shaft and housing dimensions, so replacement does not require changing the equipment design.
To get a quote, send the complete part number by WhatsApp or email. Without a number, send the shaft and housing dimensions and the team will confirm the reference you need. MR Industrial Accessories LLC serves customers across the United States, Canada, Mexico and South America, and can suggest equivalents and help with selection.
Dimensions
- Bore
- 35 mm
Frequently asked questions
- What does the R suffix mean on an NA bearing?
- It shows that the bearing uses a riveted steel cage. This is the standard cage in the NA series and works well at high speeds and moderate temperatures.
- How do I decide between the NA49 and NA69 series?
- The NA49 has a smaller radial section than the NA69. Where radial space is tight, NA49 is the choice; where more load capacity is needed, NA69 fits better. Confirm the shaft and housing dimensions first.
- Can I replace another brand's needle roller bearing with an NTN NA series part?
- Yes, bearings that follow the same dimensional nomenclature are interchangeable between brands. Send the other brand's part number and MR will give you the matching NTN reference.