YRTS High Speed Turntable Bearings
YRTS high speed turntable bearings are precision axial-radial roller bearings developed for rotary applications that require higher rotational speed, low friction, high rigidity, and reliable load-carrying performance. Compared with the standard YRT series, the YRTS series uses a different internal bearing arrangement while maintaining corresponding external dimensions, making it a practical choice for high-speed precision rotary tables, direct-drive systems, and other demanding motion-control applications.
Key Features of YRTS High Speed Turntable Bearings
Like the standard YRT series, the YRTS high-speed series bearings consist of two axial components and one radial component. The axial section comprises two thrust cylindrical roller and cage assemblies, an outer ring, an L-shaped inner ring, and a second inner ring; preload is applied axially upon assembly. The radial section consists of a cage-guided cylindrical roller assembly, with radial preload also applied. The outer ring, L-shaped inner ring, and second inner ring feature mounting holes, allowing the bearing to be secured with connecting bolts to ensure stability during installation, transport, and handling.
High-Speed Performance
The YRTS series is designed for applications where conventional turntable bearings may not provide sufficient rotational speed. Its internal design supports higher limiting speeds while maintaining the precision and rigidity required by rotary equipment. Published specifications show grease limiting speeds of up to 950 r/min for the YRTS200 model, with the allowable speed varying by bearing size and operating conditions.
Low and Stable Friction Torque
YRTS bearings are designed to provide relatively low and uniform friction torque across the operating speed range. This characteristic helps reduce rotational resistance and supports smoother motion, particularly in precision rotary systems and direct-drive applications where friction characteristics can directly affect motion performance.
High Rigidity and Load Capacity
The YRTS structure is designed to accommodate axial and radial loads while also supporting tilting moments. This combination makes the series suitable for precision rotary tables and machine-tool applications where both rotational accuracy and structural stiffness are important.
Precision for Rotary Motion Systems
YRTS high speed turntable bearings are commonly associated with precision rotary tables, CNC machine tools, direct-drive rotary axes, indexing equipment, and other motion-control systems. Depending on the application, precision grades and preload configurations can be selected to meet specific requirements for rotational accuracy, rigidity, speed, and load capacity.
YRTS Series Size Range
Common YRTS models include YRTS200, YRTS260, YRTS325, YRTS395, and YRTS460. For example, the YRTS200 has a 200 mm bore, 300 mm outside diameter, and 45 mm overall height, while the YRTS460 has a 460 mm bore, 600 mm outside diameter, and 70 mm height. The published data also show that larger models generally provide higher load ratings while their grease limiting speeds decrease, so bearing selection should consider speed, load, rigidity, and installation dimensions together.
Available Models & Specifications
Click on any part number to view detailed CAD drawings and download PDF specifications.
Selection and Application of YRTS High-Speed Series Rotary Table Bearings
YRTS high speed turntable bearings are suitable for equipment that combines precision rotary motion with relatively high operating speeds, including:
CNC rotary tables and machining centers
Direct-drive rotary axes
Torque-motor-driven rotary systems
Precision indexing and positioning equipment
High-speed grinding and machining equipment
Inspection and measurement systems
Automation and precision rotary mechanisms
Engineering Support for YRTS Bearing Selection
Choosing a YRTS bearing requires more than matching the bore and outside diameter. Engineers should consider the required rotational speed, axial and radial loads, tilting moment, rigidity, preload, mounting accuracy, lubrication, operating temperature, and available installation space. For demanding applications, the complete load and speed conditions should be evaluated against the manufacturer's technical data before final selection.
PRS Bearing provides YRTS high speed turntable bearing solutions for precision rotary applications, with engineering support for model selection, dimensional requirements, operating conditions, and application-specific configurations. Contact our technical team to discuss your rotary bearing requirements and find a suitable YRTS solution for your equipment.
