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NSK Standard Ball Screws High-Speed SS Series

Precautions

u Design

1. One end of the screw shaft is cut through.
2. If a ball screw of which the left shaft end (opposite the driving side) is the shape 1. and if it is supported

with the "fixed-fixed" supporting method, you should be aware that the operating life of support bearings
may shorten due to thermal expansion of the screw shaft, depending on usage conditions. In this
case, you should consider a structure that can accommodate thermal expansion of the screw shaft if
necessary. Please consult with NSK for a detailed examination.
3. For general precautions concerning ball screws, please check NSK Catalog No.E3162 "Precision
Machine Components".

u Usage

1. Instructions for shaft end processing
The high speed SS series has a straight cut shaft end. Therefore, during actual use, the end
of the shaft must be machined according to the customer's specifications. NSK recommends
designated suppliers that offer quality assurances and precision guarantees. If any other
supplier carries out processing, NSK will not provide a precision guarantee.

2. Service temperature environment of 60°C or less (at the nut outer temperature)

3. Only a rust preventive agent is applied at the time of delivery. Please apply lubricant, oil or
grease before using.

4. The seals are installed on the end of the nut with the ball screw shaft. However, the ball
screws should be provided with a dust cover to prevent debris such as dust and metal powder
from entering.

5. If the nut accidentally comes off the screw shaft, please contact NSK.

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