Angular contact bearing

NSK Screw ultra-precision bearings

NSK Screw ultra-precision bearings

Features of Ball Screw Bearings:

Ball screw bearings offer high precision, reversibility, and efficiency. Due to their minimal frictional resistance, they are extensively employed in various industrial equipment and precision instruments.

Ball Screw Bearing Usage Instructions:

1. These bearings are designed for combination use, allowing bearings of the same nominal size to be assembled into configurations of two, three, or four rows. As individual outer rings bear a ‘v’ mark on their outer diameter surface, when employing combinations of two or more rows, assemble according to the diagram and ensure the ‘v’ marks are oriented correctly.

2. During assembly, avoid subjecting the bearings to impact loads.

3. Radial vibration positions are indicated by an ‘o’ mark on the inner ring side or chamfered area, and a ‘v’ mark on the outer ring's outer diameter surface. Aligning the bearing with the position opposite the maximum eccentricity of the shaft or bearing housing during installation ensures optimal rotational precision.

Ball Screw Bearing Function:

Ball screw bearings offer a standardised, diverse product range to suit various applications. Ball circulation methods include tube-type, circulator-type, and end-cover-type. Preload methods include locating preload (dual nut method, locating preload method) and constant pressure preload. The appropriate type may be selected according to application requirements. Screws comprise precision ground ball screws (accuracy graded from CO to C7 across six levels) and cold-rolled ball screw bearings (accuracy graded from C7 to C10 across three levels). Peripheral components essential for bearing operation, including screw support units, nut brackets, and lock nuts, have been standardised for user selection. 

 

“Do you see over yonder, dear client, those tricky equipment bottlenecks, those wear-and-tear troubles that stall your production? I intend to arm your machines with genuine imported bearings—and stand by with technical support to slay every glitch that comes your way.”

— Hengzhou Bearings

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