How to choose cross roller turntable bearings
The crossed roller bearing is a high-precision special structure bearing for turntable applications. It has an irreplaceable role in mechanical equipment. It is because of its particularity, so in the bearing
You must be more cautious in your choice. Luoyang Yujie Bearing, as a professional manufacturer of crossed cylindrical roller bearings, introduces to customers the precautions when choosing crossed roller bearings for turntables, and selects the most suitable crossed roller bearings for customers. When selecting crossed roller bearings for turntables, we must consider the bearing load, clearance, eccentric load and speed and other factors. The selection of high-precision crossed roller bearings must strictly control the conditions to achieve the most satisfactory results for customers.
1. Bearing installation space
As the shaft is designed with emphasis on the rigidity and strength of the shaft, the shaft diameter, that is, the inner diameter of the bearing, is generally determined first. Cross-roller bearings have mounting holes and oil holes, so such auxiliary mechanisms are not needed. The installation space of cross-roller bearings is much smaller than that of two or more sets of combined bearings.
2. Bearing capacity
The size, direction and nature of the load: the load capacity of the bearing is expressed by the basic rated load, such as the size of the load, whether there is only a radial load, whether the axial load is one-way or two-way, vibration
The degree of movement or impact, etc. After considering these factors, choose the most suitable cross-roller bearing type.
3.Speed
Bearing types that can adapt to the limit speed: the limit value of the bearing speed is expressed in the limit speed, and its value is shown in the bearing size table. The limit speed of the bearing is not only taken from the bearing type but also limited to the bearing size, cage type, accuracy class, and load conditions And lubrication methods, etc. Therefore, these factors must be considered when choosing.
4. Rotation accuracy
Bearing type with required rotation accuracy: The dimensional accuracy and rotation accuracy of the bearing have been standardized by GB according to the bearing type. Machine tool spindles, gas turbines and control machines require high rotation accuracy, high speed and low friction respectively. In this case, P5 should be used. Bearings with higher accuracy. The accuracy of the cross-roller bearing of Luoyang Yujie Bearing has exceeded the P4 level and individually has reached the P2 level, which basically meets the rotation requirements of various precision equipment.
5. Rigidity
Crossed roller bearings that can meet the rigidity required by the mechanical shaft system: When under load, the contact part of the rolling element and the raceway will be elastically deformed. "High rigidity" refers to this elastic deformation
The amount is small. In the machine tool turntable, industrial robot, and measuring equipment, while improving the rigidity of the shaft, the rigidity of the bearing must also be improved. Roller bearings are less deformed under load than ball bearings,
Crossed roller bearings use cylindrical rollers as rolling elements to ensure the rigidity of the bearing, while crossed roller bearings with negative clearance have higher rigidity.
6, The relative tilt of the inner ring and the outer ring
Analyze the factors that make the inner ring and outer ring of the bearing relatively tilt (such as the deflection of the shaft caused by the load, the poor accuracy of the shaft and the housing or the installation error), and select the type of cross roller bearing that can adapt to this use condition.
Luoyang Yujie Industry &Trade Co.Ltd located in Luoyang City, one of the main heavy industrial bases in China.
We specialize in the production of bearings, nonstandard machinery parts, machine tools. For the bearings, we can offer cross roller bearing, slewing bearing, YRT bearing, thin section bearing, ball screw bearing, deep groove ball bearing, etc. For the nonstandard machine parts, we can produce gears, shafts, sprockets, molds, rollers, pulley, mining machine parts, etc as per customer drawing and requirements. For the machine tools, we offer CNC vertical machine center, CNC horizontal lathe, CNC gantry boring and milling machine, CNC floor type boring, and milling machine.
If you have any interests, feel free to contact us and we warmly welcome customers and friends visit us
Luoyang Yujie Industry & Trade Co., Ltd.
Tel: +86-379-80865527
Fax: +86-379-65136562
Email:sales@yujieindustry.com
ADD: Jianxi Industrial Park, Luoyang City, Henan, China
https://www.yogiemachinery.com/products
Website:https://www.yogiemachinery.com
