roll bearings
Our company can produce all kinds of roller bearings with inner diameter 25mm to external diameter 600 mm, light cross roll bearings with accuracy grade from P0 to P4, annual output comes to ten thousands!
Retaled
"Roll Bearings"
Products
Luoyang VSG Bearing Co., Ltd could offer OEM roller bearings.
If you just start your business about roll bearing and do not know exactly about them, you just need to call us (0086-379-63082858) or email to us(becky@lyvsg.com; info@lyvsg.com)
Generally speaking, the material of roll bearings are bearing steel(Gcr 15).
Retaled "Roll Bearings" Keywords
Related
"Roll Bearings"
BlogHow to choose roller bearings |
08-30 |
Roller bearing size by rolling installation space constraints ( bearing diameter , outer diameter depending on the roll neck with the barrel diameter ) , bearing a smaller cross-section high , are thin-walled bearings, but they must also withstand higher radial load, Therefore, use of multi- row roller bearings .Currently the main use four cylindrical roller bearings and four row tapered roll bearings, but also a double row cylindrical roller bearings, double row tapered roller . Tapered roller bearings are mostly used hollow roller and cage pillars , in order to improve the lubrication conditions , the bearing outer surface and end , respectively, and the hole has opened a tank , when the clearance fit with the roll neck , the bearing inner ring bore surface opened on spiral groove .Roller bearing structure is based on the different types of mills , different working conditions and different structural configurations to decide. In general, the four cylindrical roller bearings easily get higher precision, and therefore has a high-speed rotation characteristics , but also because of its easy installation and removal , and can be pressed into the roll back of the neck in the inner ring raceway surface and the inner ring of roll surface while grinding, help to improve rolling precision , used for high-speed , high-precision bearing roller mill , four-row tapered roller bearing load capacity, can support radial load and axial load, for low and medium speed mill .
Introduction of roller bearing |
08-30 |
Roll is mounted on the shaft , more precise axis , most rolls are all bearings , usually two series of bearings, tapered roll bearings , anti- side pressure and self -centering effect , piercing machine rollers, rolling machine rolls , will be reducing mill roller bearings are used ,
Currently, the hot ( cold ) most commonly used rolling mill roller bearing is four -row tapered bearings, divided into split and the overall style .
These precision roller bearings can withstand large radial and axial forces , and thus does not require any auxiliary axial bearings.
In order to grip the tapered roller bearings , had opposite rotation two heavy tread ring . Each installation and removal of the roll must make this weighs about 15 kg, with a loose-leaf ring removed, a considerable workload .
In order to meet the heat ( cold ) rolled strip growing demand , taking into account the rolled surface quality , personnel operating factors and more stringent safety regulations circumstances, Borken, Germany 's Fooke developed four row tapered roller bearings hydraulic fixture provides a simpler, more secure solution . Hydraulic axial positioning fixture is simple, safe and fast. Bearing mounting assembly as a whole , components including bearings, fixed pitch sleeve , bearing caps , hydraulic clamping ring and tighten the hinge ring , hinged ring into the slot on the rolling groove and locked in the correct position.
Hydraulic fixture especially for those for grinding, chrome or other reasons need regular facelift mill roll stands .
Roller bearing several issues |
06-17 |
the nature of the work roll bearingsRoller bearing for supporting a rotating roll and the roll kept in the correct position in the rack, the rolling base of the important components. And general bearing roller bearing compared to the special nature of the work with the following:the unit to withstand large loads. Due to bearing dimensions should not exceed the minimum diameter of the barrel, roll neck length and shorter, so bear roller bearing unit pressure, than the average 2-4 times higher bearing or higher. And Yang value (bearing unit pressure and line speed of the product) is 3-20 times the normal bearings.Operating speed difference is big. Different types of mills operating speed vary greatly, modern high-speed six-stand tandem cold rolling mill exit speed has reached 42m / s, 45 ° exit speed wire rod mill finished Gao rack up 120m / s or more; rather slow speed of only rolling mill 0.2m / s. For such a disparity in the speed difference, of course, to use different forms of bearings.Poor working conditions. Have all kinds of hot rolling mill with water cooling, and there is iron oxide splash; cold rolling machine to make use of an emulsion or other rolling oil to lubricate, cool rolls and rolling, this process is not a lubricant and bearing oil phase mixture, therefore, the higher the bearing seal.types of roller bearingsThe main types of roller bearing is rolling and sliding bearings.
Knowledge of roller bearing |
06-17 |
Roller bearing size by rolling installation space constraints (bearing diameter, outer diameter depending on the roll neck with the barrel diameter), bearing a smaller cross-section high, are thin-walled bearings, but they must also withstand higher radial load, Therefore, use of multi-row roller bearings. Currently the main use four cylindrical roller bearings and four row tapered roller bearings, but also a double row cylindrical roller bearings, double row tapered roller. Tapered roller bearings are mostly used hollow roller and cage pillars, in order to improve the lubrication conditions, the bearing outer surface and end, respectively, and the hole has opened a tank, when the clearance fit with the roll neck, the bearing inner ring bore surface opened on spiral groove. Roller bearing structure is based on the different types of mills, different working conditions and different structural configurations to decide. In general, the four cylindrical roller bearing easily get higher precision, and therefore has a high-speed rotation characteristics, but also because of its easy installation and removal, and can be pressed into the roll back of the neck in the inner ring raceway surface and the inner ring of roll surface while grinding, help to improve rolling precision, used for high-speed, high-precision bearing roller mill, four-row tapered roller bearing load capacity, can support radial load and axial load, for low and medium speed mill .