NB's GW Slide Bush series features an outer cylinder "load section" made of hardened steel and a "ball return section" made of resin. The two sections are formed together as one unit resulting in an overall weight reduction of 30 50 when compared to our traditional SW Slide Bush, while maintaining equivalent accuracies and capacities. This new generation Slide Bush will respond to the demands of "low-cost" as well as broaden the application scope of Slide Bush.

STRUCTUREANDFEATURES

Light weight

Figure 1: Structure of GW Slide Bush

The GW Slide Bush makes efficient use of resin components making it possible to achieve an overall weight reduction of 30 50 when compared with the SW Slide Bush.

resin outer cylindersteel outer cylinderretainer sealball element

Low Noise Design

The ball return section is configured completely in resin material, which provides for low noise operation. Smooth Movement, High Acceleration/Deceleration Support The GW Slide Bush provides smooth movement under high acceleration/deceleration motion through the accurately lined-up circulation of the balls and the light weight structure.

Industrial seal

An optional integral resin seal is also available.

Figure 2: Recommended Installation Method

INSTALLATION

d

2

=D-(.01~.04)D:outer diameter of outer cylinderd

Table 1: Recommended Fit accuracy grade shaft housing series clearancefit transitionfit clearancefit d
2 1

=dr-(.01~.04)dr:inner contact diameter

GW High g6 h6 H7 d
1

Installation Notes

When inserting the GW Slide Bush into a housing, apply an even force to the end of the outer cylinder using a jig such as shown in Figure 2. Handle careful as a precision component; do not subject to strong shocks by dropping or hammering on the resin outer cylinder. When using two or more shafts, it is very important to maintain the parallelism between shafts, as this will greatly affect the smoothness of movement and component life. Adjust the parallelism as needed to achieve smooth movement during the operation of a GW Slide Bush. NB's GW Slide Bush consists of an outer cylinder casing, steel balls, and ball retainer. The outer cylinder casing is steel combined with resin and is formed by precision grinding processes. 1