Slide rotary bush
The Nippon Bearing slide rotary bush SRE series provides rotary and linear motion functions.
Linear motion with unlimited stroke and rotary motion are merged into a single bush resulting in great space saving compared with a combination of any conventional bearings.
Advanteges:
Smooth operation
The inner surface of the outer cylinder allows smooth operation of linear and rotary motions while maintainging a uniform load distribution.
High load capacity
The use of comparatively large diameter steel balls enhances the load capacity.
Smooth rotation
The positioning of the steel balls in a cylindrical formation inside the retainer enables a smooth rotational motion regardless of the installation direction.
Complete interchangeability
NB slide rotary series is completely interchangeable with SM type slide bush, SMK type flanged slide bush and SMA(W) type, AK(W) type and SMP type.
SRE series:
| Part number | Structure | Picture |
|---|---|---|
| SRE | normal type |
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| SREK | square flange type |
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| SMA-R | block type |
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| SMA-RW | double-wide block type |
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| AK-R | compact block type |
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| AK-RW | double-wide compact block type |
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| SMP-R | pillow block type |
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RK type:
NB's RK type slide rotary bush is a highly accurate and high load capacity bearing providing smooth continuous linear and rotational motions.
Its structure imposes no constraints on linear and rotational motions.
It is much more compact than a standard slide bush with separate rotational bearing.
Advantages:
- A smooth unlimited linear and rotational motion is obtained.
- There is no need to machine separate housing.
- High accuracy is ensured for extended period of usage.
- Its high compatibility eliminates replacement problems.
- High rigidity enables it to withstand an unbalanced load and large load.