Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-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.
- SeriesLSH
- Supplied asComplete guide set
- SizeLSH20
- Rail width20 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length2480 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 LSH20HN2X2480S40AN-M6
This code orders a complete LSH guide: one 2480 mm profiled rail carrying two square, standard-length carriages, plus bolt caps and the M6 side fitting. Inside each carriage four rows of recirculating balls run in X-arranged arc raceways at 45 degree contact, so the block carries load equally upward, downward and sideways and takes up small mounting-surface misalignment instead of binding on it. Size 20 here means a true 20 mm rail width - no hidden correction is needed when you machine the bed.
Each carriage is rated at 18.6 kN basic dynamic and 28.6 kN basic static, with allowable moments of 0.27, 0.25 and 0.25 kN.m; the pair on one rail doubles that capacity and, just as usefully, resists tipping along the direction of travel. The 2480 mm rail leaves 1560 mm of headroom below the 4040 mm maximum length for size 20, so the axis can be stretched later without changing model. Accuracy grade N and preload A give the lowest-friction, most forgiving combination in the range.
Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-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 | 2 |
| Rail length | 2480 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.
Model Code: Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-M6
| 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. |
| 2X2480 | 2 carriages on a 2480 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, 2480 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.
Where the Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-M6 Is Used
Panel-saw positioning slide
A 2.4 m travel slide feeding sheet material past a beam saw: two blocks per rail share the weight of the clamped panel and keep the fence square over the full stroke.
Pick-and-place transfer rail
Carrying a robot gripper head across a 2.4 m transfer between a magazine feeder and a packing station, where the second block stops the head nodding at each end of travel.
Large-format camera gantry
A vision camera traversing roughly 2.4 m above a print or textile line; grade N running parallelism of 12-37 um keeps the lens path predictable without paying for a precision-grade rail.
Is the Airtac LSH Linear Guide Rail LSH20HN2X2480S40AN-M6 the Right Guide?
Size the guide on moment as much as load: a single standard LSH20 block manages 0.27 kN.m in MR, and where a cantilever needs more, one step up to LSH25 lifts that to 0.44 kN.m - about 63 percent for one part - while a long LSH20 carriage reaches 0.35 kN.m. For light duty in a tight envelope the slimmer LRM series is worth a look, though its load ratings are not published, so we confirm suitability case by case; where travel is short and crossed-roller rigidity matters more than long recirculating travel, LGC is the better match.
Before ordering, tick off: form (this SKU is the full rail-plus-blocks set), size chosen by load AND moment, carriage style and length, block count and rail length, accuracy grade and preload - remembering that a tighter preload shrinks the mounting tolerances you must hold - grease fitting, and the pairing code if you are matching to parts of an existing axis.
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 LSH20HN2X2480S40AN-M6 FAQ
Per 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. Running parallelism for grade N rail is 12-37 um depending on length. Mount the rail with M5 screws at 882 N.cm into steel, 588 into cast iron, 441 into aluminium. Each standard carriage holds 1.8 cm3 of Mobilux EP2 on first fill and 0.6 cm3 on top-up, re-greased every 100 km of travel or every 3 to 6 months.
It costs mounting latitude. With preload A, a 500 mm rail spacing tolerates 25 um of parallelism error and 130 um of height error, scaled to your actual spacing. Move to preload B and those tighten to 20 and 85 um; preload C demands 18 and 50 um. The extra rigidity is real, but so is the demand it places on the machined base, so check what your surface can hold before ordering a preloaded set.
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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 LSH20HN2X2480S40AN-M6
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