The YRT80-TV is a widely used small-to-medium-sized combined precision bearing from the YRT series. Featuring an inner diameter of 80 mm, an outer diameter of 146 mm, and a thickness of 35 mm, it utilizes a combined structure of three roller rows. Both the outer ring and the split inner rings are equipped with mounting holes, allowing for direct bolting and convenient assembly.
Combined precision bearing core features are outstanding: the integrated load-bearing design simultaneously handles radial loads, bidirectional axial loads, and tilting moments, offering a more compact structure than traditional multi-bearing assemblies. It comes pre-loaded from the factory, ensuring high rigidity and rotational accuracy; axial and radial runout are controlled at the micron level, and the frictional torque is only approximately 3 N·m, ensuring smooth, jerk-free rotation at low speeds and precise positioning. The cage employs a TV design, ensuring stable operation and impact resistance; the limiting speed with grease lubrication is approximately 350 r/min, making it suitable for low-speed, heavy-load precision rotary applications.
Applications are concentrated in high-precision rotary scenarios: in machine tools, it is used for CNC rotary tables, precision indexing heads, and tilting milling heads to ensure machining positioning and indexing accuracy; in precision inspection equipment, it serves as a core support for roundness testers, large optical lens rotary tables, and coordinate measuring machines (CMMs), providing a stable and precise rotational reference; in automation and semiconductor equipment, it is applied to precision rotary worktables, wafer handling mechanisms, and inspection station turntables, meeting requirements for cleanliness and high precision; additionally, it is widely used in medical equipment (such as CT scanner rotating gantries), laser processing rotary stations, and precision tooling fixtures.
With advantages such as ease of installation, stable accuracy, and excellent overall cost-performance, the YRT80-TV has become a preferred combined precision bearing choice for small-to-medium-sized precision rotary devices.