Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-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
- Carriages1
- Rail length120 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 LSH25F2N1X120S30AN-M6
LSH25F2N1X120S30AN-M6 is a complete AirTAC LSH linear guide assembly in size 25: a 120 mm profiled rail, 23 mm wide (the size code is not the rail width), carrying a single standard-length bottom-flange carriage. Four rows of recirculating balls run in X-arranged arc raceways at a 45 degree contact angle with two contact points per ball, giving equal capacity in every direction, and slight mounting-surface error is taken up inside the block rather than causing the slide to bind. The F2 flange fastens from underneath, so the carriage top face stays clear for the machine plate.
Per block the catalogue lists 26.9 kN dynamic, 39.4 kN static and allowable moments of 0.44 (MR), 0.38 (MP) and 0.38 (My) kN.m. Static sits near 1.5 times dynamic across this range, which is why travel life is calculated from the dynamic figure, not the larger static one. With only 120 mm of rail the assembly suits a fixed short-stroke slide; the first fixing hole sits 30 mm from the rail end per the S30 offset.
Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-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 | Flange, bottom mounting |
| Carriage length | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 120 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 LSH25F2N1X120S30AN-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. |
| 1X120 | 1 carriage on a 120 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, 120 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.
Where the Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-M6 Is Used
PCB inspection camera lift
A short vertical slide raising an AOI camera over a printed circuit board: the 120 mm rail suits the compact column, and the F2 base flange bolts up beneath the camera bracket while equal-direction load capacity handles the reversing acceleration.
Microplate dosing head
A laboratory dispenser traversing its head across a 96-well microplate in short repeated strokes; the size 25 block carries the side thrust of each docking move, and the no-preload fit keeps mounting demands modest on a machined aluminium deck.
Connector crimp press slide
A benchtop servo press feeding M12 connector housings under a crimp die on a short shuttle; the 39.4 kN static rating absorbs the press shock while the carriage geometry tolerates a lightly machined fixture plate.
Is the Airtac LSH Linear Guide Rail LSH25F2N1X120S30AN-M6 the Right Guide?
Size down when the duty is trivial: the AirTAC LRM series fits tighter envelopes for light loads, but its load ratings are not published, so send us the duty and we confirm it from the datasheet. For a short cross-slide where stiffness matters more than travel, LGC crossed rollers are the stiffer choice. If the load hangs off an arm, moment rules: stepping to LSH30 lifts MR from 0.44 to 0.66 kN.m (about 50 percent for one part) and the long LSH25 carriage reaches 0.58 kN.m without changing size.
Checklist before ordering: confirm the form (this is a full set), size by load and moment together, choose carriage style and length, count and rail length, then accuracy and preload with their installation cost, the correct grease fitting for the size, and the pairing letter if you are replacing one half of an existing guide.
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 LSH25F2N1X120S30AN-M6 FAQ
For the standard-length LSH25 carriage: dynamic rating C 26.9 kN, static rating C0 39.4 kN, allowable moments MR 0.44, MP 0.38 and My 0.38 kN.m, and running parallelism of 12-37 um for N accuracy depending on rail length. Fix the rail with M6 screws at 1370 N.cm on steel, 921 N.cm on cast iron or 686 N.cm on aluminium. Grease: 3.6 cm3 first charge and 1.1 cm3 top-up per carriage, refreshed every 100 km of travel or every 3 to 6 months.
This set is supplied without preload, the most forgiving condition: at 500 mm rail spacing the allowable parallelism error P is 30 um and the allowable height error S is 130 um, both proportional to actual spacing. Choosing light preload B would tighten those to 22 and 85 um, and medium C to 20 and 70 um - rigidity is bought at the cost of surface quality. The self-aligning carriage absorbs only error inside these limits, not unlimited misalignment.
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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 LSH25F2N1X120S30AN-M6
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