Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4 is a standard-type profile linear guide on a 15 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 asComplete guide set
- SizeLSH15
- Rail width15 mm
- Carriage lengthStandard carriage
- Carriages1
- Rail length520 mm
- AccuracyN — normal grade
- PreloadA — no preload
- 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 LSH15HN1X520S20AN-M4
This LSH15 code delivers the two parts as one matched unit: a 520 mm rail, 15 mm wide, and a single square standard-length carriage that runs on it. The geometry inside the block is four ball rows meeting X-shaped raceways at a 45 degree contact angle, two points of contact per ball. Because of that, the carriage self-aligns - slight errors in the mounting shoulders are absorbed within the guide rather than passed on to the motion as stick-slip.
At 520 mm the rail uses roughly an eighth of the 4040 mm maximum length available in size 15, leaving room to reorder the same guide longer if the machine grows. The single carriage is rated 11.3 kN dynamic and 17.9 kN static, with 0.12 kN.m of moment capacity in each of the MR, MP and My directions. When a load starts to tip along the travel, the first answer is a second carriage on this rail - any LSH15 carriage fits any LSH15 rail of the model and keeps its smoothness and accuracy.
Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Complete guide set |
| Construction | Recirculating ball, four ball rows on X-shaped raceways at a 45° contact angle, self-aligning |
| Size code | LSH15 |
| Rail width | 15 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 520 mm |
| Basic dynamic load rating C | 11.3 kN per carriage |
|---|---|
| Basic static load rating C0 | 17.9 kN per carriage |
| Allowable static moment | MR 0.12 / MP 0.12 / My 0.12 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M4 — 412 N·cm into steel, 274 cast iron, 206 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 |
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.
Model Code: Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 1X520 | 1 carriage on a 520 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| N | N — normal grade. |
| -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 | Complete guide set |
|---|---|
| Rail | Yes, 520 mm |
| Carriage | Yes, 1 |
Rail and carriage(s) supplied together, matched as a set. 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 LSH15HN1X520S20AN-M4 Is Used
Benchtop CNC mill X-axis
A small milling machine's X-axis rebuilt on profile rail: the 520 mm length sets the working envelope, and M4 screws at 412 N.cm torque in the cast-iron base hold the rail true.
Cable-harness test gantry
An automated harness continuity tester sweeping connectors along a fixture: the 0.12 kN.m moment ratings carry the hanging test head, and a second carriage can be added if it ever tips.
Pallet stop station
A pallet-transfer conveyor's stop-and-locate slide: the self-aligning square carriage keeps moving smoothly even where the conveyor frame is welded and unmachined rather than ground flat.
Is the Airtac LSH Linear Guide Rail LSH15HN1X520S20AN-M4 the Right Guide?
Check three directions before settling. Down: LRM handles lighter, tighter duties but publishes no load ratings, so we confirm them for the duty first. Across: LGC suits short strokes where crossed-roller rigidity matters more than long recirculating travel. Up: when moment governs, LSH25 N raises MR from 0.12 to 0.44 kN.m in a single size step - usually cheaper than re-engineering the head - or simply add a second carriage on this 520 mm rail to fight tipping.
Before ordering, tick off: this is a complete set with rail and carriage together; size 15 verified against load and moment; square standard carriage, one off; rail 520 mm with 20 mm end offset; accuracy N and preload A, fine for a 130 um height allowance but note preload C would cut that to 35 um; grease fitting M4; and keep a spare carriage on the shelf - replacements drop straight onto any LSH15 rail of this model.
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 LSH15HN1X520S20AN-M4 FAQ
Per carriage: basic dynamic load 11.3 kN, basic static load 17.9 kN, allowable static moments 0.12 kN.m in each of the MR, MP and My directions. N accuracy means 12-37 um running parallelism depending on rail length. Rails are clamped by M4 screws at 412 N.cm in steel, 274 N.cm in cast iron and 206 N.cm in aluminium, with a shoulder corner radius of 0.5 mm maximum. Grease charge is 0.9 cm3 of Mobilux EP2, with 0.3 cm3 top-ups through the M4 fitting every 100 km of travel or every 3 to 6 months.
Yes, and it is steep. At this code's preload A, paired rails 500 mm apart may sit up to 130 um apart in height and 25 um out of parallel. Preload C drops those limits to 35 um and 13 um - about a quarter of the height allowance - so the guide becomes stiffer but the seats must be machined to match. For a lightly machined frame, staying at preload A and accepting the slight extra compliance is usually the better engineering call.
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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 LSH15HN1X520S20AN-M4
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