
The AirTAC Airtac LSH Linear Guide Rail LSH15HN2X180S30AN-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.
The LSH15HN2X180S30AN-M4 is a matched complete set for a short, compact stroke: a 180 mm rail drilled with a 30 mm end-hole offset, plus two square standard-length carriages, all delivered together. Inside each block, four rows of balls circulate through X-shaped raceways cut at 45 degrees and meet each raceway at two points per ball; this equalises capacity in every loading direction and lets the carriage swallow slight misalignment of the mounting face rather than binding. The size 15 rail measures 15 mm across.
Static capacity runs roughly one and a half times the dynamic figure - 17.9 kN against 11.3 kN per carriage - and it is the dynamic C value that governs travel life, so size on C and treat C0 as the shock and standby margin. Each block also carries 0.12 kN.m of allowable static moment on the MR, MP and My axes alike. Grade N parallelism runs 12-37 um across the length band, and mounting is by M4 screws at up to 412 N.cm torque into steel.
| Model | Airtac LSH Linear Guide Rail LSH15HN2X180S30AN-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 | 2 |
| Rail length | 180 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.
| 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. |
| 2X180 | 2 carriages on a 180 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. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 180 mm |
| Carriage | Yes, 2 |
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.
A glue or solder-paste nozzle shuttles between dispense points on the short 180 mm stroke; twin square blocks stop the nozzle manifold from yawing at each direction reversal.
Light fabrication jigs use this 15 mm guide to carry a workpiece past a cutter; with preload A the mounting face needs no precision grinding, only clean, flat support and correct torque.
A compact materials tester positions specimens under its probe on this short rail; the 17.9 kN static rating per carriage covers the clamping loads applied while the rig sits at rest.
On a 180 mm stroke the duty is usually positioning rather than carrying, so confirm the moment case: a cantilevered head will find the 0.12 kN.m per-block limit quickly, and a second carriage on the same rail, or a step up to LSH20 with its MR of 0.27 kN.m, buys margin against tipping. For the very lightest duties LRM may shrink the envelope further, though its load ratings are unpublished and need confirming with us; for short travels that need crossed-roller stiffness instead of recirculating running, LGC is the alternative architecture.
Order checklist: this is a complete set (rail plus two carriages, nothing separate to buy), size 15 selected on load and moment together, square standard-length carriages, two per rail, 180 mm rail length with 30 mm end offset, accuracy N, preload A, M4 grease fitting.
Quick checklist
Per square standard carriage: 11.3 kN dynamic rating C, 17.9 kN static rating C0, and 0.12 kN.m allowable static moment on each of the MR, MP and My axes. Grade N running parallelism is 12-37 um depending on rail length. Fix the rail with M4 screws at 412 N.cm (steel), 274 N.cm (cast iron) or 206 N.cm (aluminium). Grease: 0.9 cm3 first fill and 0.3 cm3 top-ups per carriage, through the M4 fitting, every 100 km of travel or every 3 to 6 months, whichever comes first.
It is a complete matched set: one 180 mm rail and two square carriages arrive together, factory-paired, so no pairing code is needed at ordering. LSH carriages are interchangeable within the same model, so if a block wears out years later you can buy a single replacement carriage, fit it to this rail, and keep the original smoothness, preload and accuracy.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.