What are the features of ball screw support bearing?

For machining center ball screw support bearing, special bearings are usually used.

For the convenience of designers' reference, the ball screw support bearing angular contact ball bearings produced by NSK are introduced below.
Features of NSK ball screw support bearing
1) High rigidity Due to the specially designed nylon forming cage, the number of steel balls is increased, and the contact angle is 60. , So the axial rigidity is large.
2) Ball screw support bearing does not need to be pre-adjusted. For each combination, the manufacturer has already prepared the gap that can obtain the best pre-tightening force. Therefore, the user does not need to adjust again during assembly, just follow the device sequence symbol made by the manufacturer (>) After arrangement, tighten it.

3) The starting torque of ball screw support bearing is small. Compared with tapered roller bearings and cylindrical roller bearings, the starting torque is small.

2) Ball screw support bearing combined form machining center chooses this angular contact ball bearing, usually it is necessary to combine more than two bearings and apply pre-tightening force to use.
The ball screw support bearing combination has 2 columns, 3 columns and 4 columns, as well as the front combination (DF, DFD, DFF, etc.) and the back combination (DB, DBD, DBB, etc.).

Application of ball screw support bearing
Ultra-high DN value ball screw: high-speed machine tool, high-speed integrated machining center machine
End cap type ball screw: fast handling system, general industrial machinery, automated machinery
High-speed ball screws: CNC machinery, precision machine tools, industrial machinery, electronic machinery, high-speed machinery
Precision ground ball screws: CNC machinery, precision machine tools, industrial machinery, electronic machinery, conveying machinery, aerospace industry, other actuators used in antennas, valve switch devices, etc.

Rotary nut (R1) series ball screws: semiconductor machinery, industrial robots, woodworking machines, laser processing machines, conveyors, etc.
Rolling grade ball screw: the advantages of low friction, smooth operation, fast delivery and low price
Heavy-duty ball screws: all-electric injection molding machines, presses, semiconductor manufacturing equipment, heavy-duty brakes, industrial machinery, forging machinery

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