Detailed Product Description

has the characteristics of limited radial space, high axial forces, equal support of all the rows of rollers and long operating life, and is the ideal spindle of parallel screw extruder.
The provided by our institute has the following types: double rows, three rows, four rows, five rows, six rows and eight rows, we also provided bearings with shaft and sleeve barrel. Customers can have their own selections according to center distance of screws, space and load (Figure 1~3). We also accept the orders of other dimensions.

Application of
   When using SBI , the following recommendations should be adhered to:
   1. Preload: 1% of the dynamic basic load rating. The dynamic basic load rating of each tandem bearing see Figure 1~3. Figures not listed will be provided by out institute on request.
   2. Radial guidance: full complement cylindrical roller bearings or needle roller bearings can be used.
   3. Eliminate tilting: the supporting parts must be machined to eliminate any tilting.
   4. Mounting tolerances: SBI recommended the following mounting tolerances: shaft f6 and housing bore F7.
   5. Lubrication: must always be lubricated by oil circulation (Figure 4)

Application examples:
   The has been successfully used in gear boxes for single and twin screw extruders in the rubber and plastics industries due to its limited radial space, high axial forces, long operating life and low frictional power.
Figure 5: An application example of 4-row in twin screw extruder.
  1. Axial cylindrical roller bearings      shaft h6  housing H7
  2.5.8 Single-row full complement cylindrical roller bearings     shaft p6  housing H7
  3. Single-row full complement cylindrical roller bearings     shaft p6  housing H7
  4. 3-row full complement cylindrical roller bearings     shaft m6  housing H7
  6. 4-row tandem bearings        shaft f6  housing H7
  7. Double-row full complement cylindrical roller bearings     shaft m6  housing H7
  9. Axial cylindrical roller bearings       shaft h6  housing H7
  10. Tapered roller bearings             shaft h6  housing H7