温州佳吉轴承批发:进口、国产轴承,订做各种非标轴承
24 hour customer service hotline:86-0577-63628596
Add:
Mob:86-18968809022
Tel:86-0577-63628596
Fax:86-0577-63628596
Web:www.wzzcpf.com
Classification of ceramic bearings
    点击数:5224         日期:2014/4/4
( 1 ) high-speed bearings : a cold, mechanical flexibility of small , anti- stress, poor thermal conductivity, light weight, low friction coefficient , etc., This article from [ 58 bearing net ] http://58bearing.com, reproduced please note Ming source. Can be applied at 12,000 rev / min -75 000 rev / min high-speed spindles and other precision equipment ;
( 2 ) , bearing temperature : temperature of the material itself has 1200 ℃, and good self-lubricating , temperature is not generated due to the expansion caused by temperature differences between the 100 ℃ -800 ℃ . Can be used in furnaces, made ​​of plastic , steel and other high-temperature devices ;
( 3 ) , corrosion-resistant bearings: the material itself has a corrosion-resistant properties , can be applied in the field of acids, alkalis , inorganic and organic salts , water , etc. , such as: plating equipment , electronic equipment, chemical machinery , shipbuilding , medical equipment , etc. .
( 4 ) , magnetic bearings: do not smoke because of non-magnetic dust can reduce bearing off in advance , and big noise . Available in demagnetization device. Precision instruments and other fields.
( 5 ) , electrical insulation bearings: the force due to the high resistance , arcing damage -free bearings , available in a variety of electrical equipment insulation requirements .
( 6 ) , vacuum bearings: ceramic materials due to the unique characteristics of self-lubricating oil in ultra-high vacuum environment, can not be achieved to overcome the plain bearing lubrication problem. Note: The above five categories bearings, bearing the same set can be applied to high-temperature , high-speed , pH , magnetic field, in the non- insulated , but the material properties vary (see performance table of rare earth ceramic material ) so please customers choose products, applied according to their own situation , to select the most suitable material ceramic bearings.
By material:
Zirconia ceramic bearings
Full ceramic bearings with anti-magnetic insulation , abrasion resistant, oil-free self -lubricating , high temperature resistant , cold, etc. , can be used in extremely harsh environments and special conditions . Rings and rolling with zirconium oxide (ZrO2) ceramic materials, maintaining the use of polytetrafluoroethylene (PTFE) as the standard configuration, the general use of glass fiber reinforced nylon 66 (RPA66-25), special engineering plastics (PEEK, PI), stainless steel (AISISUS316), brass (Cu) and the like.
Silicon nitride ceramic bearings
Silicon nitride ceramic bearing rings and rolling silicon nitride (Si3N4) ceramic materials, maintaining the use of polytetrafluoroethylene (PTFE) as the standard configuration, the general use of RPA66-25, PEEK, PI, and phenolic cloth bakelite tubes. SiN4 system ZrO2 full ceramic bearing material suitable for comparing higher speed and load capacity , as well as suitable for higher ambient temperatures. While providing precision ceramic bearings for high-speed precision and high rigidity of the spindle, the highest manufacturing precision of P4 to UP grade .
Full ceramic bearings , full complement ball
Full ceramic bearings ball ball gap side with Tim , because no- cage design, you can load more than the ceramic ball bearings standard structure , thereby improving their load capacity , while also avoiding the restrictions shelf materials can be achieved by ceramic cage type full ceramic bearing corrosion and temperature effects. The series bearings suitable for high speed , the installation should pay attention to the gap surface mounted on one end does not bear axial load .
Full ceramic bearings ceramic cage
The retainer having a ceramic wear-resistant, high strength, self-lubricating and corrosion resistance advantages , the use of a ceramic holder ceramic bearing made ​​of corrosion can be used for strong , ultra high vacuum and low temperature and other harsh environments. Ceramic material used ZrO2, Si3N4 or SiC.
Hybrid ceramic ball bearings
Especially silicon nitride ceramic ball ball has a low density , high hardness, low friction coefficient , wear resistance , self-lubricating and rigidity characteristics, especially suitable for high-speed , high-precision and long life hybrid ceramic ball bearings rolling elements ( inner and outer rings metal ) . General inner and outer rings bearing steel (GCr15) or stainless steel (AISI440C), ceramic balls can be used ZrO2, Si3N4, or SiC material.
According to technical rating:
( 1 ) , deep groove ball bearings ( technical grade : P4, P5, P6, P0) deep groove ball bearings , the most representative of rolling bearings , widely used, can bear radial load and axial load . Suitable for high-speed, low noise, low vibration and high temperature occasion or steel bearings can not be applied , cold , corrosion, magnetic , non-insulated and other fields.
( 2 ) , self-aligning ball bearing self-aligning ball bearing outer ring raceway spherical , self-aligning , can add error misalignment and shaft deflection caused . Used to generate shaft and housing misalignment or shaft deflection aligning parts of the site and high temperatures, low cold , corrosive, non- magnetic insulation requirements. Note : not more than 3 degrees inclination .
( 3 ) , single row angular contact ball bearings ( technical grade : P4, P5, P6, P0) angular contact bearings for high-speed and high-precision rotating at high temperature , magnetic field, and so does not affect the accuracy of the water , and can withstand the load synthesis . Standard contact angle of 15 °, 30 ° and 40 °, the contact angle greater the greater the axial load capacity , the contact angle is smaller bearings can bear radial load and axial load . Generally taken in pairs . Please take note at the time of purchase .
( 4 ) , Thrust ball bearings Thrust ball bearings , is made with the ball rolling raceway washer-shaped rings and assemble the ball cage. Can withstand axial load, but can not bear radial load
On a message:Too successfully developed the world's largest rolling mill bearing oil film bearing capacity      Next information:Taiyuan Heavy Industry Timken help another record - the world's largest mining excavator WK-75 was successfully launched