Machine Tool Spindle with Yrt80 Type Turntable Bearings

1.product overview
YRT bearing consists of a thrust/heart to race, a thrust/to the spindle, a thrust washer, two needle cage components and a set of radial cylindrical roller. The installation of the seat ring and shaft uniform with a screw hole. This type of bearing has high axial and radial load capacity. High tilt stiffness and high precision.
2.Bearing classification
-YRTbasic series
-YRTS high speed series
-YRTM rotary table bearings with integral measuring system
-ZKLDF thrust angular contact ball bearings series
2.Structural Features
Thrust - to YRT and YTRS series turntable bearings with radial component and axial component by the up and down the row of cylindrical roller and cage, radial components by a row of radial roller or full consists of cage guide an outer ring, inner ring a L and the second inner ring, inner and outer ring with mounting holes, the circumference of the bearing by bolt preloading uniform, ensure the installation is convenient and transportation.
3.Design and fitting
Basic rated life must check of the bearing capacity of the axial and radial component and life expectancy, basic rated life related data is needed, please contact us, must provide the speed, load and operating data.
4.Limiting speeds
Bearing the license is associated with the working temperature of bearing limit speed and working temperature related to environment and bearing its own conditions and parameters, can be calculated on the basis of the friction torque of heat balance analysis. Or if there is a difference between environmental conditions and technical requirements, and general operating condition is different, need to check again, please contact us.
5.Frictional torque
Bearing friction torque called simply MRL mainly by lubricant viscosity, quantity, and the influence of the bearing preloading. Lubricant viscosity and quantity depends on the level of lubricant and the working temperature, the preloading bearings depends on installation, and the geometric accuracy of adjacent, the difference in temperature between inside and outside the circle, the bolt tightening torque and install state (bearing inner ring is unilateral or bilateral axial bearing).
6.Lubrication
YRT and YRTS series bearings can L oil hole on the inner ring and outer ring for lubrication. ZKLDF bearing series can be lubricating oil hole on the outer ring. Amount of lubricant lubrication and interval should be according to the given load conditions (speed, load, operation duration) and environmental conditions to calculate, please contact us. Excessive lubrication, can make bearing friction torque increases, the temperature rise.
7.The design of the shaft and bearing seat
YRT YRTS and ZKLDF series with the same bearing installation dimension. Bolt installation and fitting surface if precision is not good will affect the normal operation of precision, preloading and operation characteristics, so the precision requirement on the surface of the adjacent match, adjacent to the tolerance should be within the bearing running tolerance.
8. Bearing the application scop
Precision rotary worktable, welding, large gear hobbing machine, machine tool precision rotary indexing table, vertical and horizontal boring machine, vertical grinding machine, rotary surface grinding machine, large radio and optical telescope, rotating camera, steering pivot and continuous casting machine, the highly restricted the pivot of the microscope table, rotating bogie, rotating assembly fixture, precision rotary worktable Machinery, processing center of the turntable, industrial robot joint and rotating, high precision measuring equipment, precision manufacturing equipment. (including YRTS series turntable bearings and crossed tapered roller bearings belong to high speed bearings, can be applied to nc vertical lathe equipment such as rotary table; YRTM turntable bearing contains measurement system can be used for scientific research and other high-end fields.)
9.The main type and specification