What is roller bearing
A roller bearing is a bearing in which the journal is rotated in circumferential contact with a number of rollers, usually mounted on a locating ring.
Roller bearing performance
Roller bearings can be preloaded to achieve good accuracy and rigidity.
An inner ring with taper can also be used to adjust the working clearance of the bearing at will.
This solution can completely achieve the printing machine drum bearing zero clearance requirements
Analysis of rolling friction of roller bearings
Under normal load of the roller, along the groove rolling, will produce elastic deformation under the contact surface of the material, after exposure to eliminate most restoration, elastic deformation experiment, points out that the stress value of the given load when the deformation is always less than lightening, thus causing the first half of the contact area pressure after more than half of the contact area.
The pressure in the contact area is combined to obtain the resistance moment and horizontal resistance. This phenomenon is called elastic hysteresis, which reflects a certain amount of energy loss, and its size is related to material, load, geometric size, speed and so on.
Adhesion effect of roller bearings
Adhesion theory refers to that when two metal surfaces are pressed together, the actual contact point is a series of micro-convex bodies due to the influence of roughness, and the actual contact area is relatively small, so the stress value on the actual contact micro-convex body is very high.When external load increased to make the micro convex body material to achieve yield limit and plastic deformation occurs, within the scope of the contact area can produce adhesive, and in the clutch bearings, inner and outer ring raceway and roller relative motion between the two, only pulled the sticking points and to have relative motion, between and among the energy loss, produce the phenomenon of rolling resistance is called adhesion effect.Adhesion effect is also an important cause of rolling friction torque.Roller bearing clutch is a new type of friction superclutch. Compared with the existing overrunning clutch, it has the advantages of high bearing capacity, long life, reliable locking and so on.The dynamic characteristics of roller bearing clutch play an important role in its dynamic analysis.
Through theoretical analysis, it is pointed out that the torsional stiffness of the clutch is nonlinear, which provides a theoretical basis for dynamic analysis and structural parameter optimization of the roller bearing clutch.
Friction power consumption of roller bearings
Roller bearing clutch is a new type of friction overrunning clutch. Compared with the existing overrunning clutch, it has high bearing capacity, long life and reliable locking, etc., especially according to its principle, it can be developed for different occasions by changing some parameter values.
The price of roller bearings
The price of roller bearings is affected by many factors such as market, material and quotation. If you want to know the specific price of roller bearings，please contact us to make enquiries.
Supplier of roller bearings:BMB Bearings
BMB Bearings is the complete one-stop supplier of OEMs and wholesalers purchasing high-precision, miniature ball bearings, industrial ball bearing related products, as well as related professional services, including world-class engineering and design. If you have any need, please feel free to contact us .