Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E
The AirTAC Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E is a standard-type profile linear guide on a 28 mm wide rail. Four rows of balls contact X-shaped raceways at a 45° angle, so the guide carries load equally in all four directions and absorbs small mounting errors inside the carriage instead of binding.
- SeriesLSH
- Supplied asRail only
- SizeLSH30
- Rail width28 mm
- Rail length520 mm
- AccuracyN — normal grade
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E
LSH30RLX520-S20-N-E is a 520 mm length of size 30 profile rail, normal accuracy grade, with a 20 mm end-hole offset coded as S20 and pairing code E. It is a rail only: no carriage is included, so nothing in this box carries load, preload or grease. Order LSH30 blocks with the same E code to run on it. The S20 offset shifts the first and last mounting holes 20 mm in from the rail ends - useful when end fixings must clear a machine feature such as a stop block or a bearing housing.
At 520 mm this is a compact axis component rather than a long-bed track, and normal grade gives a 12-37 um running parallelism band. The rail face is 28 mm wide despite the 30 series code. Fixing is top-lock with M8 screws torqued to 3040 N.cm in steel, and the bolt caps must be driven into the counterbores and left flush with the rail top face so swarf cannot reach the ball circuit. A short rail like this also makes a sensible service spare: one length can cover several small slides on the same machine.
Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Rail only |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH30 |
| Rail width | 28 mm (the size code is not the rail width above size 20) |
| Rail length | 520 mm |
| Basic dynamic load rating C | 37.4 kN per carriage |
|---|---|
| Basic static load rating C0 | 55.0 kN per carriage |
| Allowable static moment | MR 0.66 / MP 0.67 / My 0.67 kN·m |
| Accuracy grade | N — normal grade |
| Mounting screws | M8 — 3040 N·cm into steel, 2010 cast iron, 1470 aluminium |
| Lubrication | Pre-filled with Mobilux EP2; re-grease every 100 km of travel or every 3–6 months |
| Interchangeability | LSH carriages fit LSH rails of the same model, matched by the pairing code |
Specifications follow the official AirTAC LSH catalogue. The catalogue page does not state the carriage or rail base material. Sizes 35 and 45 exist in the catalogue but are not stocked here; they are available to order. This item is a rail only. Order a complete set if you also need a carriage.
Model Code: Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E
| LSH | LSH Series Linear Guide. |
|---|---|
| 30 | Size code — note the rail is 28 mm wide, not 30 mm. |
| RL | Rail only — no carriage supplied. |
| N | N — normal grade. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -M4 / -M6 / -A01… | Grease nipple or tube-fitting type. Restricted by size: size 15 the M4 family, 20–35 the M6 family, 45 the PT1/8 family. |
What Is In The Box
| This order | Rail only |
|---|---|
| Rail | Yes, 520 mm |
| Carriage | No — not supplied with this item |
This is a bare rail cut to length. NO CARRIAGE IS INCLUDED. If you are not sure which form you need, send us the machine or the original part number and we will confirm it before you order.
Where the Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E Is Used
Press-feed slide repair
A 520 mm rail replaces the worn track under a press feed slide; the S20 end offset clears the stop block, and the E code identifies the exact carriage to refit on top of it.
Weldment alignment fixture
Fixturing that nudges parts square before welding uses a short slide; 12-37 um parallelism is ample for a clamping line, and one 520 mm rail with two E-coded blocks forms the moving jaw.
Filling nozzle lift rail
On a bottling line, a short rail guides the filling head's vertical lift carriage; a service spare of this length keeps the line's critical slide covered without holding a full-length spare.
Is the Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E the Right Guide?
Order this code when you need a rail alone - a replacement for a scored short rail, or the track for a compact slide you are building. Run the checklist: form (rail only), size 30 with a true 28 mm width, accuracy N, 520 mm length, S20 end-hole offset, pairing code E, top-lock mounting (no T suffix in the code). The axis is sized by the carriage's dynamic C, static C0 and MR/MP/My ratings, never by the rail, and a cantilevered head is usually moment-limited - a long carriage or one size up buys moment faster than a second block. For lighter duties in a tighter envelope, LRM steps down (its load ratings are not published, so we confirm them on request); for short travel needing crossed-roller rigidity, step across to LGC.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ Travel length and mounting space
- ✓ Accuracy grade and preload
- ✓ Mounting surface ground or finish-milled
- ✓ Pairing code, if replacing a part
Installation & Maintenance Notes
- check Mounting surface must be ground or finish-milled.
- check Torque the rail screws per the recommended figures, in sequence.
- check Keep the mounting corner radius inside the stated R maximum.
- check Do not angle the carriage onto the rail; balls can drop out.
- check Drive the supplied bolt caps into the mounting holes.
- check Re-grease every 100 km of travel or every 3–6 months.
- check Installation by qualified personnel per AirTAC docs.
Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E FAQ
Length 520 mm with a 20 mm end-hole offset (S20). True rail width 28 mm against a size 30 code. Normal grade running parallelism 12-37 um. Fixing: M8 screws at 3040 N.cm in steel, 2010 N.cm in cast iron, 1470 N.cm in aluminium; mounting shoulder H 6.5 mm, H1 5 mm, H2 5 mm, corner radius 1 mm max; maximum rail length in size 30 is 4030 mm. Dynamic C, static C0, the MR/MP/My moments, preload and the grease charge all belong to the LSH30 carriage you pair with this rail, not to the rail itself.
It is neither a complete set nor a carriage - a rail only, 520 mm long, with no block supplied. S20 is the end-hole offset: the outermost mounting holes sit 20 mm in from each rail end, which matters if end fixings must clear machine features. To mate a carriage, its pairing code must end in the same E as this rail; read the code off your original part when replacing. Any LSH30 carriage with an E code runs on this rail and keeps its rated smoothness and accuracy.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH30RLX520-S20-N-E
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