ABT Bearing Transmission Technology Co.,Ltd.is one of the authorized bearing agent to sell 60TAC120BSUC10PN7B NSK Angular Contact Ball Bearing .With more than 30 years selling experience and a wide range of products in stock,ABT Bearing have sell well throughout the world and wined a good reputation from most of them.Except that Our company are also dealing with Ball Bearing Series:Deep Groove Ball,Thrust Ball(Single Row Double-Directino/Doubel Row Single-Direction),Radial Ball,Self-aligning Ball,Filling Slot Ball,Counterbored Ball,Three/Four Point Contact Ball.Roller Bearing Series:Spherical Roller,Radial Roller,Cylindrical Roller,Tapered Roller,Needle Roller,Drawn Cup Needle Roller,Convex Roller,Concave Roller,Crossed Roller,Thrust Roller,Cylindrical Roller Thrust,Tapered Roller Thrust,Needle Roller Thrust,Spherical Thrust Roller.ABT Bearing Seals Type and Row contain:RS,2RS,Z,2Z,2RZ,DDU,LLU,VV;Single-Row,Double-Row,Four-Row.ABT Bearing Centry have following original brand:SKF,FAG,NSK,TIMKEN,NTN,NACHI,IKO,INA,KOYO,FYH and so on.They come from Swenden,Germany,France,Italy,Britain,Austria,Netherlands,Spain,Japan,India,Malaysia,Indonesia,Korea,China,Iran,Saudi Arabia,USA,Canada,Brazil,Mexico and other country in European/Asia and North America/South America.ABT Bearing website provide Structure、Dimensions、Net Weight and all Parameter and Details of all kind of bearings.Today Let us talk about Basic elements when choosing SKF rolling bearing.
When making new spindle design, select the SKF bearing before, first consider the spindle performance parameters, roughly determine the key performance, and then enter the further exploration. (Including: the spindle speed, spindle precision of the spindle rigidity, life of the spindle, spindle fever, spindle reliability)
After determining the main parameters, should research the meter spindle’s actual size (diameter of axle, length, bearing span).
According to the bearing form (ball or roller bearing), arrangement (to match the number of columns), drive mode (belt) within, gears, motors, motor, lubrication,) grease, (oil and gas, oil mist, spray) set of parameters such as spindle to determine its structure.
1, bearing radial load
Mainly bear radial load of SKF bearings for centripetal bearings. This type of bearing the nominal contact Angle of a0 < = 450. Same size roller bearing bear larger radial load than that of ball bearing.
N and NU type cylindrical roller bearing can only bear radial load, other types of centripetal bearing can bear radial load, can also carry axial load.
2, bearing axial load
Mainly bear axial load of bearing, generally for the thrust bearing, its nominal contact corner a0 > 450. Thrust bearing and thrust angular contact ball bearing according to the different structures can take one or two directions at the same time of axial force. When bear particularly high force optimization, Should choose thrust cylindrical roller bearings or thrust spherical roller bearings.
Thrust spherical roller bearings and one-way thrust angular contact ball bearings can carry axial load and radial load at the same time, other thrust bearing can only carry axial load.
3, their own compensation of bearing length
A shaft bearing and bearing usually adopt fixed bearing and floating bearing structure. Swim SKF bearing compensation axial length error and thermal expansion.
NU type and swimming N type cylindrical roller bearings are the ideal bearing, the bearing itself can compensate for length. Bearing inner and outer circle can use a tight fit.
4, the length of the sliding fit compensation
Non-separable bearing also are known as sliding bearing. This kind of bearing with a use of the two rings, no axial fixed surface. Therefore, bearing ring can be the move on the supporting surface.
After determination precision bearing size, type, consider specific design bearing.
Fully considering the bearing fatigue life, rigid, fever and other factors, choose the most appropriate bearing clearance (load).
Determine the spindle structure design, need to consider the need of actual installation conditions.
High precision bearing installation of shaft and bearing accuracy, tolerance matching and installation of fixed set nut tightening force, after the actual installation of skf bearing preload and confirmation of the internal clearance.