
NTN 5S-HTA012UADB angular contact ball bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Angular contact ball bearings
- Series
- 5S-HTA0UA
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Description
NTN 5S-HTA012UADB belongs to angular contact 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 5S-HTA012UADB and any equivalents.
The NTN 5S-HTA0UA angular contact ball bearing is built for high-precision applications that combine radial and axial loads with strict rotational accuracy. Typical uses include machine tool spindles, measuring equipment, and positioning systems. MR Industrial Accessories supplies this series to customers across the US, Canada, Mexico, and South America, and can help you select the right configuration.
The part number structure provides useful information. The prefix 5S denotes a high-precision execution, while HTA identifies the angular contact series with a contact angle suited to high speeds. The 0UA block defines the internal design and cage type. A suffix such as DB indicates back-to-back tandem mounting, which delivers axial rigidity in both directions. In codes like 5S-HTA010UADB or 5S-HTA014UADB, the central number (010, 014) corresponds to the bore size.
These bearings are found in milling machine spindles, machining centers, grinders, and precision lathes, as well as in measuring heads and rotary tables. They are common in metalworking, automotive, and machine tool operations where high speed and rigidity are essential. High-end printing equipment and coordinate positioning systems also use them.
When selecting a bearing, consider axial and radial load, maximum operating speed, and required rigidity. A DB paired mounting demands precise fitting of the housing and shaft, with tight concentricity and perpendicularity tolerances. Lubrication may be grease or oil depending on speed and temperature; high-speed spindles often require oil lubrication and cooling. Proper alignment between supports is critical to avoid parasitic loads.
NTN 5S-HTA0UA bearings can be interchanged with equivalent products from other brands if main dimensions and contact angle match. Verify the precision class (ABEC/ISO) and mounting type when seeking equivalents. MR Industrial Accessories can help identify a compatible part number if you provide the original code or housing dimensions.
To request a quote, send the full part number or application dimensions via WhatsApp or email. Our team responds promptly with technical assistance to support your project.
Dimensions
- Bore
- 60 mm
Frequently asked questions
- What does the DB suffix mean in a 5S-HTA0UADB designation?
- The DB suffix indicates back-to-back tandem mounting. This arrangement provides high axial rigidity in both directions and is used in spindles and shafts requiring precision and stability.
- How do I select the right angular contact bearing for my spindle?
- Consider axial and radial load, rotation speed, required rigidity, and available space. Also define the mounting type (DB, DF, DT) and precision class. MR Industrial Accessories can advise on these criteria.
- What mounting practices are important for these bearings?
- Mount in a clean environment with suitable tools, and control concentricity and perpendicularity of the seats. Follow the specified lubrication and ensure proper alignment between supports to prevent premature failure.

