Where Is YRT 150 High Precision Rotary table bearing Used?

The YRT 150 High Precision Rotary table bearing is used across a wide range of demanding industrial applications where precise rotational positioning and multi-directional load capacity are non-negotiable. With an inner diameter of 150mm, outer diameter of 240mm, and width of 40mm, this axial-radial bearing is the standard choice for 4th and 5th axis CNC machining centers, high-precision indexing heads, robotic joint assemblies, aerospace component manufacturing equipment, and medical imaging systems. Its integrated design handles radial loads, axial loads, and tilting moments simultaneously, making it indispensable in any application where micron-level runout accuracy directly affects output quality.

Introduction to the YRT 150 High Precision Rotary Table Bearing

When it comes to precision manufacturing, engineers know that not all bearings can handle the complex needs of modern rotary tables. The YRT 150 High Precision Rotary Table Bearing was made to work in these situations. It combines the functions of a thrust bearing, a radial bearing, and gearing into a single small unit. This design gets rid of the need for multi-component systems and the alignment mistakes that come with them. This bearing is made from high-quality GCr15 (equal to 100Cr6) bearing steel and has been heat-treated to 58–62 HRC. 

Application Areas of YRT 150 Rotary Table Bearings

The YRT 150 High Precision Rotary table bearing works well in a number of high-demand areas. Because it can hold combined loads and keep its positional accuracy to within a few microns, it is the best choice in situations where standard bearings just can't do the job.

CNC Machining Centers (4th and 5th Axis)

In 4th and 5th axis machining centers, the rotary table bearing is the main part that moves in any direction. When milling something very heavy, the cutting forces create strong tilting moments and radial loads at the same time. The YRT 150 bearing's double-row angular contact ball setup, which can have contact angles of 45° or 60°, can handle all of these forces without affecting the accuracy of placement. Manufacturers say that this combined unit cuts down on table runout and improves the standards of final parts when traditional multi-bearing setups are replaced.

High-Precision Indexing Heads and Swivel Units

Zero-backlash positioning is important for angular indexing for gear manufacturers and turbine component manufacturers. The YRT 150 has a factory preload that gets rid of any internal clearance. This locks each indexed position with no play. Because of this, it is the standard choice for indexing heads used in making aerospace parts, where errors in angle measured in arc-seconds are not acceptable.

Medical and Metrology Equipment

Medical tomography scanners and large coordinate measuring machines (CMMs) need to be able to rotate without any stick-slip issues. The YRT 150's precision-ground raceways ensure even running accuracy, stopping shaking or runout that could mess up measurement data or lower the sharpness of images. Before any unit leaves the factory floor for these uses, ISO standards are used to check the surface roughness (Ra) of the raceways.

Design Features and Operational Insights of YRT 150 Bearings

Knowing how the YRT 150 rotary table bearing is put together on the inside helps procurement engineers make smart choices. Its function is based on three structural elements:

Integrated Three-in-One Configuration

The bearing is made up of a push bearing, a radial bearing, and an indexing device. The inner ring turns, while the outer ring stays in place. The structure is finished off with the precision steel balls and the cage assembly. This design cuts down on the time needed for installation, the size of the mechanical footprint, and the alignment mistakes that often happen with traditional combined bearing setups.

Double-Row Angular Contact Ball Arrangement

The bearing can handle axial loads from both directions, radial loads, and turning moments all at the same time because it has two rows of steel balls set at 45° or 60° contact angles. Compared to single-row layouts, this shape makes the structure much stiffer. The YRT 150 High Precision Rotary table bearing maintains the same position during its entire service life even when it is loaded in complex ways during machining.

Precision-Ground Raceway and Quality Control

The inner and outer raceways are finely ground and then super-finished. Coordinate Measuring Machines (CMM) and Taylor Hobson roundness tools are used for dimensional and runout checking to make sure that ring runout stays within P4/P2 tolerances, which are usually less than 3 μm. The starting torque test proves the uniformity of the preload, and the metallographic analysis and HRC test confirm the depth of the heat treatment. Testing the surface roughness (Ra) of raceways stops micro-pitting and helps keep the lubricant film in place.

Comparison and Decision-Making: YRT 150 vs. Other Rotary Table Bearings

The type of load that needs to be handled, the size of the machine, and the level of accuracy that is needed all affect the choice of rotary table bearing. Key types are compared in the table below:Small 4-axis heads and light-duty tables are fitted for the YRT 130 (130 mm x 210 mm), while the YRT 150 (150 mm x 240 mm) is better for mid-size CNC tables, indexing heads, and medical equipment. The YRT 200 (200 mm x 300 mm) is best for heavy-duty machining and large robotic joints.

Procurement Guide for YRT 150 Rotary Table Bearings

When a business buys precision bearings, they look at more than just the unit price. Lead time dependability, supplier certification, and the ability to provide technical support all have an impact on the total cost of acquisition and the ability to keep production going. Before placing an order, procurement teams should think about these main things, including whether the supplier can provide solutions such as YRT 150 High Precision Rotary table bearing for demanding precision applications.

• Certification verification: Confirm that the YRT 150 bearing supplier holds ISO 9001 and IATF 16949 certifications. These standards govern manufacturing process controls, measurement systems, and defect prevention — directly relevant to bearing precision and consistency.

• Dimensional and runout documentation: Request inspection reports that include CMM data, axial runout measurements, and starting torque test results. A qualified YRT 150 bearing manufacturer provides these with each batch.

• Minimum order quantities and lead times: For B2B buyers in North America and Europe, standard lead times from Chinese precision bearing manufacturers typically range from 3 to 8 weeks depending on quantity and customization. Confirm MOQ policies before committing to a procurement cycle.

• Technical support availability: Suppliers offering engineering consultation — including preload selection guidance and installation recommendations — reduce the risk of bearing misapplication and premature failure.

All of these things together show if a YRT 150 bearing seller can be a long-term strategic partner instead of just a one-time dealer.

Conclusion

There is a specific group of tough industry needs that the YRT 150 High Precision Rotary table bearing meets. It can handle axial, radial, and tilting loads all at once in a single unit, keeps axial runout below 5 micrometers, and can be used for everything from medical imaging to CNC machining. The YRT 150 bearing is the best choice for purchase engineers looking at rotary table bearings because it has the right amount of pressure capacity, accuracy, and ease of installation. Picking a certified maker with clear quality control procedures and a dependable supply chain protects both production plans and the quality of the final product.

FAQ

How long does a YRT 150 rotary table bearing last under continuous operation?

Service life depends a lot on how much is being loaded, how often it is oiled, and how fast it is being used. If the right preload is used, the lubrication is kept clean, and the speed stays between 200 and 250 RPM, a good YRT 150 bearing in a CNC cutting application can usually last for tens of thousands of hours. Manufacturers list the L10 recommended life based on dynamic load rates. For figures that are specific to your application, look at the datasheet from your provider.

How do I know if the YRT 150 is the right size for my machine?

The YRT 150 bearing works with rotary tables and indexing heads with 150mm shafts that need to handle both axial and radial loads at the same time and resist tilting moments. The YRT 130 is the right model for your needs if you need a smaller bore, like 130mm. If your table has a lot of heavy things on it, the YRT 200 might be better.

What maintenance schedule should I follow?

When to re-oil depends on how fast the machine is running and the weather. In normal machine settings, check and re-grease grease-lubricated parts every 500 to 1,000 hours of use. Every year, check the preload settings and look for signs of micro-pitting or fretting corrosion in the raceways. To make bearings last longer, the best thing you can do is keep the lubricant film consistent.

Request a Quote from ATLYC — Your Trusted YRT 150 High Precision Rotary Table Bearing Manufacturer

ATLYC (Luoyang Auto Bearing Co., Ltd.) has been making precision bearings since 2010. Their six production workshops are certified by both ISO 9001 and IATF 16949. Our team of YRT 150 high-precision rotary table bearing suppliers works with OEMs, wholesalers, and equipment makers in the US, Germany, South Korea, and other places. You can email us at auto@lyautobearing.com or go to https://aotezhoucheng.aixdb.cn/ to get specs, samples, or a reasonable quote.

References

1. Harris, T. A., & Kotzalas, M. N. Rolling Bearing Analysis: Essential Concepts of Bearing Technology. Taylor & Francis, 2006.

2. ISO 492:2014. Rolling Bearings — Radial Bearings — Dimensional and Geometrical Tolerances. International Organization for Standardization, 2014.

3. Tönshoff, H. K., & Denkena, B. Basics of Cutting and Abrasive Processes. Springer, 2013.

4. Weck, M., & Brecher, C. Werkzeugmaschinen — Konstruktion und Berechnung (Machine Tools: Design and Calculation). Springer, 2006.

5. IATF 16949:2016. Quality Management System Requirements for Automotive Production and Relevant Service Parts Organizations. IATF, 2016.

6. Eschmann, P., Hasbargen, L., & Weigand, K. Ball and Roller Bearings: Theory, Design, and Application. John Wiley & Sons, 1985.