Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-M6 is a standard-type profile linear guide on a 23 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
- SizeLSH25
- Rail width23 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length1000 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 LSH25HN2X1000S20AN-M6
Two carriages ride this one rail, and that is the point of LSH25HN2X1000S20AN-M6: a second standard-length square block steadies the payload against tipping along the direction of travel and spreads the weight between two contact patches. The code is a complete set - 1000 mm size 25 rail, two square carriages, M6 fittings, no preload, N accuracy - and the rail is 23 mm wide despite the 25 in its size code. Each block carries four rows of recirculating balls on 45 degree X-pattern arc raceways, loaded equally in every direction and tolerant of small mounting-surface deviations.
At 1000 mm this rail uses a quarter of the 4040 mm maximum length available in size 25, and N-grade running parallelism spans 12 to 37 um over its length. Per-carriage ratings are unchanged at 26.9 kN dynamic, 39.4 kN static and 0.44/0.38/0.38 kN.m of moment, so a centred load shared by both blocks roughly doubles the capacity you can apply, while an off-centre load must still be checked against each block's moment figures. Greasing doubles too: two carriages take 3.6 cm3 each at first fill, and a 300 mm stroke cycled once per second reaches the 100 km re-grease point in around two weeks of running, so the distance rule binds well before the calendar one.
Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-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 | LSH25 |
| Rail width | 23 mm (the size code is not the rail width above size 20) |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 1000 mm |
| Basic dynamic load rating C | 26.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 39.4 kN per carriage |
| Allowable static moment | MR 0.44 / MP 0.38 / My 0.38 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M6 — 1370 N·cm into steel, 921 cast iron, 686 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 LSH25HN2X1000S20AN-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| 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. |
What Is In The Box
| 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.
Where the Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-M6 Is Used
Pallet transfer car in a machining cell
A pallet car running on two of these 1000 mm sets cycles at full rate around the clock; with a 300 mm stroke repeated every second the 100 km greasing point arrives in roughly two weeks, so schedule the grease gun by distance, not by date.
Workshop router table rebuild
Swapping a worn dovetail slide for a 1000 mm size 25 set: drive the supplied bolt caps into the rail holes using a flat plate and a plastic mallet, then wipe the rail, or swarf will find its way into the ball circuit.
Sheet-straightening press feed table
Off-centre sheet loads tip a single block along the travel axis; the second carriage on this rail supplies the restoring couple, with each block's 0.44 kN.m MR checked against the load height.
Is the Airtac LSH Linear Guide Rail LSH25HN2X1000S20AN-M6 the Right Guide?
Adding a second block and going one size up solve different problems. A second carriage on this rail fights tipping along the travel axis and splits a centred payload; moving from size 20 to size 25 instead buys moment capacity at a single point, MR rising from 0.27 to 0.44 kN.m. If the load both overhangs and travels, a long carriage (MR 0.58 kN.m) on the same rail is another route, since carriages of one LSH model interchange freely. For compact light-duty motion, LRM is the step down, with ratings unpublished and confirmed by us on request; for short travel needing crossed-roller stiffness, step across to LGC. Order checklist: complete set; size 25 sized on load and moment; two square standard carriages; 1000 mm rail, 20 mm end offset; N accuracy; preload A with its generous 30 um parallel and 130 um height allowances at 500 mm spacing; M6 fittings.
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 LSH25HN2X1000S20AN-M6 FAQ
Each standard square carriage: C 26.9 kN dynamic, C0 39.4 kN static, moments MR 0.44, MP 0.38 and My 0.38 kN.m. Running parallelism for N grade on this rail sits within the 12 to 37 um band. Fixing: M6 screws at 1370, 921 and 686 N.cm on steel, cast iron and aluminium respectively. Lubrication: 3.6 cm3 per carriage first fill (7.2 cm3 total), 1.1 cm3 top-ups, repeated every 100 km of travel or every 3 to 6 months.
You receive two square standard carriages and one 1000 mm rail as a matched set, so no pairing code applies. Drive each supplied bolt cap into its counterbore, lay a flat plate over it and tap vertically with a plastic mallet, then clean the rail; the cap must sit level with or below the rail top face so swarf cannot enter the ball circuit.
Authorized Export Seller
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 LSH25HN2X1000S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.