Airtac LSH Linear Guide Rail LSH25F2N2X3460S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25F2N2X3460S20AN-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 length3460 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 LSH25F2N2X3460S20AN-M6
Long-travel complete set: a 3460 mm rail at the 23 mm width true to size 25, carrying two standard-length F2 bottom-flange carriages. The rail sits close to the 4040 mm maximum length for this size, leaving 580 mm of headroom if a later rebuild needs a longer stroke from the same family. Four rows of balls circulate through X-placed 45 degree arc raceways with two contact points each, so downward, upward and side loads all draw on one rating figure, and internal self-alignment takes up slight errors along a long fabricated base without the blocks seizing.
Figures per carriage: 26.9 kN dynamic, 39.4 kN static, 0.44 kN.m MR and 0.38 kN.m MP and My. Accuracy is N grade with a 12-37 um running parallelism band, and with no preload the installation tolerance is the most generous in this series: 30 um parallel and 130 um height error allowed at 500 mm spacing, scaling with actual spacing. That combination suits a long base that is machined rather than ground, where absolute straightness over 3.5 m is hard to hold.
Airtac LSH Linear Guide Rail LSH25F2N2X3460S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25F2N2X3460S20AN-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 | 2 |
| Rail length | 3460 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 LSH25F2N2X3460S20AN-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. |
| 2X3460 | 2 carriages on a 3460 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, 3460 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 LSH25F2N2X3460S20AN-M6 Is Used
Pallet transfer cart rail
A pallet cart running down a 3.4 m station line rides two blocks per rail, with the no-preload grade forgiving the tolerances of a long fabricated track bed.
Line gate drive
A sliding guard gate or product diverter along an assembly line uses the full 3.4 m stroke; the N grade matches the accuracy of a painted steel line frame.
Large-format cutting bridge
A wide-format cutting or plotting machine runs its beam on two carriages over long rails, where the no-preload grade eases assembly across a long aluminium bed.
Is the Airtac LSH Linear Guide Rail LSH25F2N2X3460S20AN-M6 the Right Guide?
For a long stroke at modest precision this configuration is the direct match; the checklist runs: complete-set form, size 25 against load and moment, F2 flange, standard length, two carriages, 3460 mm rail, N grade, preload A, M6 fitting. If the application is light and space is tight, look at LRM, remembering its load ratings are not published and we confirm them per enquiry. A payload with a long overhang argues for the long carriage, where MR rises to 0.58 kN.m, or for wider block spacing. Where travel is short and crossed-roller rigidity beats recirculating travel, LGC is the cross-grade option. Anyone replacing a component on an existing machine should read the pairing code off the old part first.
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 LSH25F2N2X3460S20AN-M6 FAQ
Per standard carriage: C 26.9 kN dynamic, C0 39.4 kN static, moments MR 0.44 / MP 0.38 / My 0.38 kN.m. N grade running parallelism covers 12-37 um depending on rail length. Mounting uses M6 screws at 1370 N.cm (steel), 921 N.cm (cast iron) or 686 N.cm (aluminium). Grease charge is 3.6 cm3 per carriage with 1.1 cm3 top-ups, Mobilux EP2 or equivalent, repeated every 100 km of travel or every 3 to 6 months, whichever occurs first.
The delivery holds the 3460 mm rail and two F2 carriages as one matched set, plus bolt caps for the screw holes; without the caps seated flush below the rail top face, swarf enters the ball circuit. Preload A means the ball rows run with clearance rather than pre-tension, trading some rigidity for the widest installation latitude in the series: 30 um parallelism and 130 um height error allowed at 500 mm spacing, scaling with actual spacing. For most long fabricated bases that trade is the right one, and H or P grades with B or C preload remain orderable when a rebuild needs more stiffness.
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 LSH25F2N2X3460S20AN-M6
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