The characteristics of the rolling bearing and the installation method

Rolling bearing is running between the shaft and the shaft seat sliding friction into rolling friction, thereby reducing friction loss of a precision mechanical components.Rolling bearings generally consists of inner ring and outer ring, rolling body and keep the frame of four parts, the function of inner ring is match with shaft and shaft rotation;Outer ring is used to match the bearing seat, a support role;Rolling body is with the aid of maintains a uniform distribution of the rolling element between inner ring and outer ring, its shape size and quantity directly affects the using performance and life of rolling bearing;Maintains a uniform distribution can make the roller, guide roller rotation lubrication.The advantage of rolling bearings is small friction, axial size is small, easy to change, and simple maintenance.

1.Assembly technical requirements
(1) marked symbol of bearing face should be installed on the direction of the visible, check for replacement.
(2) shaft neck or bearing hole of the steps of arc radius should be less than the arc radius on the bearing.
(3) after bearing into the shaft and bearing hole, not skewed.
(4) in the two coaxial bearings, due to thermal expansion, one must move with the axis of the two bearings.
(5) when the rolling bearing assembly, must be strictly prevent dust from entering the bearing.
(6) good bearing assembly must be flexible operation, low noise, working temperature does not exceed 65 ℃.
2. Assembly method
Bearing assembly, the most basic requirement is to increase the axial force of the direct effect on the end face of bearing ring (installed on the shaft, the increase of axial force should be directly effect, circle.Installing a hole here, should direct the force applied on the outer ring).Try not to impact roller.Assembly method is hammering method, pressure method, thermal assembling unit method, freezing, etc.
1) hammer hammer, the copper bar with a hammer and some soft materials.Be careful not to let foreign bodies (e.g., copper powder) into the bearing raceway.Don't use a hammer or bear directly on bearing inner and outer ring, so as not to affect the bearing can be damaged by matching precision bearings.
(2) The screw press or hydraulic press for assembly interference tolerance larger bearings, screw press or hydraulic press can be used for assembly.Before compression, leveling and shaft and bearing lubrication slightly.Push the speed should not be too fast.
After bearing in place, should quickly unloading, so as not to damage the bearing or shaft.
(3) method with hot oil bearing heating installation method is to 80 ℃- 100 ℃, the bearing inner hole expansion, and then fixed on the shaft, in case of damage of shaft and bearing.
For filling with dust cover and seal bearing grease, thermal installation method is not applicable.
(3) the taper roller bearing clearance should be adjusted after assembly.The main method is to use gaskets, bolts and nuts to adjust.
(4) the assembly of thrust ball bearing, the first to distinguish between ring and ring.Locking ring inside diameter smaller.After assembling, the locking ring and shaft work in relatively static, and always depend on the steps of the shaft or hole end surface, or bearing will lose rolling effect and accelerated wear and tear.

Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more.