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Runner Blocks

The runner block is the moving element of a ball rail system and takes up the forces and moments from the mounting structure. Its size and preload class set the rigidity of the axis; its accuracy class sets how true the axis runs.

Match the runner block to its rail?

Pick size and format in the configurator and have the matching rail cut to your target length in one step.

Configure your linear guide →

FAQ

Frequently Asked Questions

Runner block or ball runner block: which is correct?

Both name the same part. Bosch Rexroth calls the carriages of its ball rail systems ball runner blocks. What matters are size, format and preload class, not the name.

Does every runner block fit every rail?

No. Block and rail must come from the same system and match in size. Choose format, preload and accuracy class for the load and application; the values are listed in each article technical data.

Are corrosion-resistant versions available?

Yes. Besides carbon steel, PTS stocks Resist NR and Resist NRII variants for corrosive environments such as food or packaging applications.

More ranges

Linear Rails

Linear rails in standard length ship from stock. For any other length, PTS cuts the rail in-house. Size, accuracy class and length are settled up front. Common sizes run from 15 to 45 in accuracy classes N and H.

Snap-tite Quick Couplings

A quick coupling is always two halves, and both must come from the same series. A coupler and nipple from different series will sometimes mate mechanically but will not seal reliably. The part number carries series, size and connection in that order; the combination each article uses is listed in its technical data.

Parker Ermeto Cutting Ring Fittings

Ermeto is the Parker cutting ring fitting system for tube lines to DIN 2353. As the nut is tightened the ring bites into the tube, creating grip and seal in one step. Tube outside diameter and series are chosen separately: L for the light, S for the heavy version. A complete joint needs body, ring and nut from the same series.

Parker A-LOK Compression Fittings

A-LOK is a twin-ferrule compression fitting for instrumentation, analyser and process lines. The front ferrule seals against the tube, the back ferrule grips and carries the load. Both belong to the joint and are not swapped individually for other makes. Imperial and metric tube sizes are not interchangeable, even where the numbers sit close together.

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