No need for complicated preload adjustment work! Ball screw support bearings with free combination.

basic information

Thrust angular ball bearings use balls as rolling elements, resulting in a smaller starting torque compared to roller bearings. Therefore, the driving force of the ball screw can be set to a lower level. The BST type utilizes as many small balls as possible compared to standard bearings, with thicker inner and outer rings, and a large contact angle of 60°, which increases the axial rigidity of the bearing. *This bearing (2A-BST type: open type) employs a resin-molded retainer. The sides of the bearing are all flash-ground, ensuring that the flatness difference between the front and back sides is the same. Therefore, bearings with the same designation number can be freely combined, such as DB, DBT, DTBT, etc., eliminating the need for adjustment work to achieve appropriate preload. Additionally, regardless of the combination used in the ball screw, the specified same flatness difference processing ensures that appropriate preload can be obtained, making complex preload adjustment work unnecessary, such as shim adjustments or tightening adjustments based on starting torque measurements.

Price information

Price: 12,200 to 25,900 yen The price varies depending on the quantity, so please feel free to contact us.

Price range

P1

Delivery Time

P2

※Please contact us for orders of more than 100 units.

Applications/Examples of results

Bearings for supporting ball screws of machine tools mainly used in the Asian region. *In the Asian region, including Japan, combination angular contact ball bearings are used for the ball screw support.

Line up（9）