The selection calculate

Single-row four-point contact ball type selection calculation:

The selection calculation of single-row four-point contact ball slewing bearing is carried out according to the bearing Angle of 45° and 60° respectively.

Selection according to static working condition:

Ⅰ alpha = 60 ° Ⅱ alpha = 45 °

Fa '=(Fa+5.046Fr)fs Fa' =(1.225Fa+2.676Fr)fs

M '= Mfs M' = 1.225 Mfs

Check life according to dynamic working conditions:

Ⅰ alpha = 60 ° Ⅱ alpha = 45 °

Fa '=(Fa+5.046Fr)fd Fa' =(1.225Fa+2.676Fr)fd

M '= Mfd M' = 1.225 Mfd

Then find the above two points on the load curve, one of which is below the curve.

Double exclusion ball type selection calculation:

Selection according to static working condition:

Fa '= Fafs

M '= Mfs

Check life according to dynamic working conditions:

Fa '= Fafd

M '= Mfd

Single row cross roller type selection calculation:

Selection according to static working condition:

Fa '= (Fa + 2.05 Fr) fs

M '= Mfs

Check life according to dynamic working conditions:

Fa '= (Fa + 2.05 Fr) fd

M '= Mfd

Three row roller type selection calculation:

The radial force Fr was assumed to be borne by the radial roller, and only the axial raceway load and overturning moment were calculated.

Selection according to static working condition:

Fa '= Fafs

M '= Mfs

Check life according to dynamic working conditions:

Fa '= Fafd

M '= Mfd