
The AirTAC Airtac LSH Linear Guide Rail LSH20HN1X580S20AN-M6 is a standard-type profile linear guide on a 20 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.
This AirTAC LSH20HN1X580S20AN-M6 is a complete linear guide set: a 580 mm profile rail in size 20 (true rail width 20 mm) with one square, standard-length carriage mounted on it. Four rows of recirculating balls run in X-arranged 45 degree arc raceways, so the block carries load equally up, down and sideways and absorbs slight mounting-surface error instead of binding.
Per carriage the catalogue rates this size at 18.6 kN dynamic C and 28.6 kN static C0, with moments of 0.27 / 0.25 / 0.25 kN.m for MR / MP / My - roughly 1.5 times the dynamic figure, which is why sizing on C0 alone oversizes the guide. No preload is built in, so the set runs freely and tolerates the widest installation error of any LSH20 preload grade.
| Model | Airtac LSH Linear Guide Rail LSH20HN1X580S20AN-M6 |
|---|---|
| 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 | LSH20 |
| Rail width | 20 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 580 mm |
| Basic dynamic load rating C | 18.6 kN per carriage |
|---|---|
| Basic static load rating C0 | 28.6 kN per carriage |
| Allowable static moment | MR 0.27 / MP 0.25 / My 0.25 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M5 — 882 N·cm into steel, 588 cast iron, 441 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. |
|---|---|
| 20 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 1X580 | 1 carriage on a 580 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, 580 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.
Carries a drilling-head bracket on a 580 mm span where 18.6 kN dynamic and 0.27 kN.m moment cover the tool offset without moving up to size 25.
A single block shuttles a tote tray between storage rack bays; the square body bolts down directly and grade N accuracy suits a materials-handling duty.
The block drives a pusher arm across a packaging line belt; equal sideways capacity handles the lateral thrust of kicking product off the line.
Start from the moment, not the dynamic rating: on a cantilevered or off-centre load, 0.27 kN.m of MR is often the governing figure at size 20. If the duty is light and the envelope small, step down to AirTAC LRM - its load ratings are not published, so we confirm them with you before quoting. When the moment itself is too high, one step up to LSH25 raises MR to 0.44 kN.m, about 63 percent, in a single part; a second carriage instead addresses tipping along the travel. For short strokes needing crossed-roller rigidity rather than long recirculating travel, look across at LGC.
Ordering checklist: form (complete set), size checked against load and moment together, carriage style H in standard length N, one block on a 580 mm rail, grade N accuracy with preload A for the loosest installation tolerance, and the M6 fitting that suits sizes 20 to 35. A worn block can later be renewed as a carriage-only part under the same model prefix once the rail is checked sound.
Quick checklist
For the size 20 standard-length carriage: basic dynamic load C 18.6 kN, basic static C0 28.6 kN, allowable moments MR 0.27 / MP 0.25 / My 0.25 kN.m, grade N running parallelism 12 to 37 um, M5 rail screws torqued to 882 (steel) / 588 (cast iron) / 441 (aluminium) N.cm, and a first grease charge of 1.8 cm3 with 0.6 cm3 top-ups every 100 km of travel or every 3 to 6 months.
Preload A on this set means no built-in clamping of the balls, and that buys installation latitude: at 500 mm rail spacing the allowable parallelism error P is 25 um and the allowable height error S is 130 um. Choosing preload B tightens S to 85 um and preload C to 50 um, so rigidity is paid for with a more accurately machined mounting surface. Keep A unless your build reliably holds the tighter figures.
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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.