Environmental standards and requirements for machine tool installation
In order to maintain the accuracy of the machine, it is necessary to pay close attention to the environmental conditions of the machine.
1. Environmental parameters:
Project environmental parameter conditions Remarks Temperature 17 ° C ~ 25 ° C (running) 0 ° C ~ 60 ° C (during transportation) Allowable range 15 ° C ~ 40 ° C ideal temperature difference ± 2 ° C
40%~70% at 20°C humidity, no condensation below 0.5G, 2. Installation location:
Do not install the device in radiation, such as microwaves, ultraviolet light, lasers or X-rays.
In order to ensure the machining accuracy of the machine and reduce the temperature difference around the equipment, please do not install in the following areas:
1. Direct sunlight 2. Humidity 3. Temperature difference 4. Vibration 5. Strong magnetic field 6. Dust avoids the following conditions around the installation area of ​​the equipment:
1. Garage 2. There are lanes where cars frequently travel 3. Pressure or stamping equipment 4. Welding, spot welding or argon arc welding 5. Substation 6. High voltage lines 7. Equipment or processing that is prone to dust 3. Installation site:
The foundation of the equipment installation site must be fully compacted. There are no poor foundations such as empty holes and virtual soils.
The equipment installation site must have a fixed power supply that meets the relevant requirements of the state, and no temporary power source should be used. The device must be protected from good grounding.
The installation site of the equipment must have a stable air source. The compressed air supplied must be a dry, clean compressed air that meets the relevant national requirements.
4, power requirements:
The power supply provided by the equipment installation site must be three-phase four-wire system. Line voltage is 380V ± 5%.
If the equipment site provides a three-phase four-wire power line voltage of 200V ± 5%. When the equipment is connected to the power supply, it is not necessary to connect through the transformer.
If the equipment site provides a three-phase four-wire power line voltage of 220V. After the power supply is connected to the equipment, pay attention to the voltage regulation of the power supply. Make sure that the power supply voltage fluctuation is not higher than 220V +5%.
5, compressed air:
The main line of compressed air must be equipped with a main pipe filter and dryer. The air pressure must be guaranteed at 0.5~0.7Mpa and the gas flow rate is 5 cubic meters/hour.
The UCF pillow block mounted bearing series has four bolt holes, and a set screw lock is designed for mounting onto bearing surfaces parallel to the shaft axis, such as conveyor belts. This ready-to-mount unit has solid base cast iron housing, chrome steel bearings, and is designed for efficient operation at a wide range of speeds. This one-piece pillow block housing allows for a stationary outer ring and rotating inner ring. Insert bearing maintains the separation between moving parts to reduce rotational friction, and to support radial and axial loads. The bearing is secured to the shaft with set screws to prevent slippage. This mounted bearing is used in food and beverage manufacturing, textile industry and many other industrial manufacturing.
Pillow blocks are usually referred to the housings which have a bearing fitted into them & thus the user need not purchase the bearings separately. Pillow blocks are usually mounted in cleaner environments & generally are meant for lesser loads of general industry. These differ from "plummer blocks" which are bearing housings supplied without any bearings & are usually meant for higher load ratings & corrosive industrial environments. However the terms pillow-block & plummer-block are used interchangeably in certain parts of the world.
However fundamental application of both types is the same which is to primarily mount bearings safely enabling their outer ring to be stationary while allowing rotation of the inner ring. The housing is bolted to a foundation through the holes in the base. Bearing housings are either split type or unsplit type. Split type housings are usually two piece housings where the cap and base can be detached. While certain series are one single piece housings. Various seals are provided to prevent dust and other contaminants from entering the housing. Thus the housing provides a clean environment for the expensive bearings to freely rotate hence increasing their performance and duty cycle.
Bearing housings are usually made of grey cast iron. However various different grades of metals can be used to manufacture the same.
Ucf Pillow Bearing,Ucf Pillow Block Bearing,Ucf 207 Flange Bearing,Flange Mounted Pillow Block Bearing
Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.longsbearing.com