
The AirTAC Airtac LSH Linear Guide Rail LSH15HN2X1000S20AN-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 LSH15HN2X1000S20AN-M4 is a complete AirTAC LSH linear guide set: one 1000 mm profile rail cut with a 20 mm end-hole offset, carrying two square H-type carriages of standard length. Nothing else is needed to mount it and run. Inside each carriage, four rows of recirculating balls run in X-shaped arc raceways set at 45 degrees, so the unit carries load equally up, down and sideways and absorbs slight mounting-surface error instead of binding. Size 15 here means a true 15 mm rail width - for this size the code and the width happen to agree.
Per carriage the ratings are 11.3 kN dynamic and 17.9 kN static, with 0.12 kN.m allowable moment in each direction; with two carriages on one rail the pair shares the load and resists tipping along the travel. Static capacity sits at roughly 1.58 times dynamic, so a one-off overload peak has margin even when travel life is sized on C. This is a no-preload, normal-grade set, which leaves the widest installation latitude: at 500 mm rail spacing the parallelism error may reach 25 um and the height error 130 um.
| Model | Airtac LSH Linear Guide Rail LSH15HN2X1000S20AN-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 | 1000 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. |
| 2X1000 | 2 carriages on a 1000 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, 1000 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.
Two square blocks on the 1000 mm rail carry the spindle saddle of a small CNC router, sharing the load so the cutter's side forces do not tip the carriage.
A sample-plate shuttle in a lab analyzer runs the full 1000 mm travel; the no-preload fit tolerates a lightly machined aluminium base without binding.
A pusher arm indexing cartons across a conveyor rides this guide set; equal four-direction capacity absorbs both the push load and lift-off.
Size the guide on load and moment together. Two of these carriages on one 1000 mm rail handle pushing and lifting duties well; if the load is cantilevered and moment governs, step up to LSH20 (MR 0.27 vs 0.12 kN.m per carriage, about 125 percent more for one part) or fit a long carriage. When the duty is light and the envelope small, the smaller LRM family may serve - its load ratings are not published, so we confirm them against your duty before quoting. For short-travel work needing crossed-roller stiffness rather than long recirculating travel, look at LGC instead.
Checklist before ordering: form (this is a complete set, rail and two carriages), size by load and moment, carriage style and length, count and rail length, accuracy N with no preload and the 25/130 um installation window at 500 mm spacing that buys, M4 grease point, and - if you are ever matching a replacement to existing parts - the pairing code off the original.
Quick checklist
Each of the two standard-length carriages is rated 11.3 kN basic dynamic (C) and 17.9 kN basic static (C0), with allowable static moments of 0.12 kN.m in MR, MP and My. Running parallelism for normal accuracy spans 12 to 37 um depending on rail length. The rail mounts on M4 screws torqued to 412 N.cm in steel, 274 in cast iron or 206 in aluminium. Each carriage is delivered with 0.9 cm3 of Mobilux EP2 and takes 0.3 cm3 at re-greasing, due every 100 km of travel or every 3 to 6 months.
The A code leaves internal clearance in the ball circuit, which buys the widest assembly tolerance of any LSH15 grade: at 500 mm rail spacing you may run up to 25 um of parallelism error and 130 um of height difference between rails. The self-aligning carriage absorbs that error rather than binding, but only within these values - beyond them the guide will still run roughly and wear early. If the application later needs zero-play positioning, order a B or C preload variant instead, and accept the correspondingly tighter machining requirement.
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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.