Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-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 lengthLong carriage
- Carriages1
- Rail length185 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 LSH25HL1X185S45AN-M6
This is a complete LSH linear guide set: one 185mm profile rail plus a single long square carriage, ordered as code LSH25HL1X185S45AN-M6. The carriage rides on four rows of recirculating balls seated in X-shaped arc raceways at a 45 degree contact angle, so pushing up, down or sideways loads the guide the same way, and slight misalignment of the mounting surface is taken up inside the carriage instead of jamming the balls. Size 25 has a true rail width of 23mm, not 25mm - lay out the mounting holes from the datasheet, not the size code.
Ratings per carriage, long build: 32.9kN dynamic, 53.0kN static, with moment limits of 0.58 (MR), 0.57 (MP) and 0.57 (My) kN.m - static is roughly 1.6 times dynamic across this series, so a steady load barely dents the capacity. Preload A (none) is the forgiving choice: at 500mm rail spacing the mounting surface may deviate up to 130um in height, nearly twice what a medium-preload set tolerates. The 185mm rail keeps the axis short and the hole pattern simple.
Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-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 | Long carriage |
| Carriages supplied | 1 |
| Rail length | 185 mm |
| Basic dynamic load rating C | 32.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 53.0 kN per carriage |
| Allowable static moment | MR 0.58 / MP 0.57 / My 0.57 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 LSH25HL1X185S45AN-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. |
| L | Long carriage. |
| 1X185 | 1 carriage on a 185 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, 185 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 LSH25HL1X185S45AN-M6 Is Used
Adhesive dosing head slide
A compact Z-slide carrying a glue dosing valve over a PCB panel: the 185mm rail fits a short stroke, and preload A forgives a milled, not ground, bracket.
Autosampler tray positioner
Moving a sample tray between wash and read stations in a lab analyser, where the long carriage steadies the tray against tipping at the stroke ends.
Vision camera focus slide
A machine-vision camera riding a focus axis above a parts tray; equal load capacity in all four directions means the carriage holds position whichever way the axis is mounted.
Is the Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-M6 the Right Guide?
Start with duty. If the load is light and the envelope tight, step down to AirTAC LRM - it is more compact, but its load ratings are not published, so we confirm them for your case before you commit. If the moment governs (a cantilevered head, an offset load), this long carriage already lifts MR to 0.58kN.m versus 0.44 for the standard build, about 32 percent, and a second carriage or one size up are the next levers. Where travel is short and you need crossed-roller rigidity rather than long recirculating travel, look across to LGC.
Checklist before ordering: form (this is a complete rail-and-carriage set), size by load AND moment, carriage style and length (here square, long), carriage count and rail length (one, 185mm), accuracy grade (N - normal, running parallelism 12-37um depending on length), preload (A - none, the most tolerant of mounting error), grease fitting (M6, correct for sizes 20 to 35), and the 45mm end-hole offset if your fixing holes sit close to the rail ends.
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 LSH25HL1X185S45AN-M6 FAQ
Per carriage, long build: dynamic C 32.9kN, static C0 53.0kN, moment limits MR 0.58, MP 0.57 and My 0.57 kN.m. Accuracy N gives running parallelism of 12-37um across its length band. Rail screws are M6, torqued to 1370 N.cm in steel, 921 in cast iron or 686 in aluminium. Grease: 4.5cm3 first charge per long carriage, 1.4cm3 top-ups, re-greased every 100km of travel or every 3 to 6 months.
Preload A (none) maximises mounting tolerance: at 500mm rail spacing the guide accepts up to 130um of height error and 30um of parallelism error between rails, figures that shrink to 70um and 20um at preload C. The trade is rigidity - an unloaded carriage sits loosest at A. If your machine sees vibration or reversing loads, order the CP variant instead and prepare a flatter mounting surface; the self-aligning property only absorbs error within these allowable values, it is not unlimited.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LSH Linear Guide Rail LSH25HL1X185S45AN-M6
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