In recent years, with the rapid development of the bearing industry, YRT rotary table bearings have basically achieved localization, widely used in precision rotary table vertical grinding machine, indexing head, hobbing machine, gear milling machine, four-axis five-axis, DD motor and other precision devices.
But there are still a large number of customers and friends do not know much about the structure of the YRT rotary table bearings, we often explain this issue to customers in the actual work, today, we will analyze together with you.
YRT rotary table bearing structure is composed of a thrust / centripetal shaft circle, a thrust washer, two needle roller cage assembly and a set of centripetal cylindrical roller. The seat ring and shaft ring have evenly distributed screw holes for mounting. This type of bearing has high axial and radial load carrying capacity. High tilting rigidity and high accuracy. They are suitable for rotary tables, chucks and milling heads as well as for bearing configurations in measurement and experiments. This type of bearing also has high requirements for the equipment parts with which it is fitted. The torque of the mounting screws needs to be controlled during installation.
Application: Widely used in precision rotary table vertical grinding machines, indexing heads, gear hobbing machines, workpiece shafts and other precision devices.
YRT rotary table bearing standard structure
Thrust – centripetal combination structure, can simultaneously withstand bi-directional axial load, radial load and overturning moment. YRT rotary table bearing series are suitable for low speed, short operation cycle, high rigidity and precision requirements, such as rotary table, indexing head, etc. The bearings are preloaded at the factory, so there is no need to adjust the clearance.
The YRT rotary table bearings produced by Luoyang LIKE Precision Machinery Co., Ltd are already filled with lubricating grease at the factory, you can refill the grease between six months and 12 months during the process of use, according to the working condition, we have designed grease holes on the inner ring and outer ring respectively, customers can operate by themselves, simple and convenient.
If you have higher precision requirements for YRT rotary table bearings or special needs in terms of dimensions, please contact us and we can make non-standard customization for you according to your working conditions or drawings.
The coupling bolts ensure that the bearings are secure during transport. To make the bearing alignment easier, loosen the coupling bolts on the bearing itself before mounting and tighten or remove them after mounting.
According to the given tightening torque MA, the bolts are tightened with a torque wrench in a crossed sequence and in three steps.
(turn the bearing while tightening the fixing bolt, below)
Step 1 : 40% MA
Step 2 : 70% MA
Step 3 : 100% MA
Pay attention to the grade of the mounting bolts. The mounting force must be applied only to the bearing ring to be mounted and must not pass through the rolling element.
During mounting and dismounting, the bearing assembly must not be separated or interchanged. If the bearing rotation is abnormally difficult, loosen the mounting bolts and tighten them again in three steps according to the order of cross, which can eliminate the bearing deformation.
Luoyang LIKE Precision Machinery Co., Ltd – LKPB
Main products are rotary table bearings YRT, YRTS,YRTM,ZKLDF series and crossed roller bearings RA, RB, RE, RU,SX,XR,XSU,CRB/CRBC, CRBH, CRBT, CRBF.
Precision can be P5、P4 and P2，And the size range is φ20mm – φ2000mm. With more than 10 years of production experience, Can be OEM, Non-Standard Bearings Made To Order，Welcome to contact us
Wechat/WhatsAPP: +86 15670310586