Airtac LSH Linear Guide Rail LSH25HN2X460S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25HN2X460S20AN-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 length460 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 LSH25HN2X460S20AN-M6
In the box: one LSH25 profile rail, 460 mm long and 23 mm wide, with two square carriages already fitted and paired to it - model LSH25HN2X460S20AN-M6. Preload is A (none) and accuracy is N (normal); the carriages are standard-length square type, each fitted for an M6 grease nipple. The four-row, 45 degree ball geometry gives the guide equal ratings in all four load directions and lets it self-align over slight datum errors.
Per carriage, C is 26.9 kN and C0 is 39.4 kN; the static figure looks bigger, but C is what governs travel life, and C0 sits at roughly 1.5 times C across this range. The 460 mm spacing between the two blocks resists tipping along the travel, while each block alone carries MR 0.44 kN.m. With no preload, this is the most forgiving configuration to install: 130 um of height error is allowed over a 500 mm rail span.
Airtac LSH Linear Guide Rail LSH25HN2X460S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25HN2X460S20AN-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 | 460 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 LSH25HN2X460S20AN-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. |
| 2X460 | 2 carriages on a 460 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, 460 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 LSH25HN2X460S20AN-M6 Is Used
Pick-and-place gantry X-axis
The long axis of a carton or electronics pick-and-place gantry: the 460 mm block spacing resists tipping as the Z-head extends, and zero preload keeps drag low for fast starts and stops.
Laser marking head traverse
A CO2 marking head running back and forth over extrusion lengths on a production line. N-grade running parallelism of 12-37 um holds the head at focus height across the 460 mm stroke.
Dispensing valve slide
A glue or solder-paste valve stepping across PCB panels in electronics assembly. No preload means the least breakaway drag, which helps repeatable dot placement at every stop.
Is the Airtac LSH Linear Guide Rail LSH25HN2X460S20AN-M6 the Right Guide?
Start from the load path. Two carriages share the weight and side forces, so check the 26.9 kN C per block and, for any overhung mass, the 0.44 kN.m MR; for tipping along the travel, widening the block spacing on a longer rail often beats adding capacity. If moment still governs, one size up to LSH30 raises MR to 0.66 kN.m, and the long LSH25 carriage reaches 0.58 kN.m. Light, compact duties may fit the LRM family instead (ratings unpublished; we confirm), while short-stroke stages that need crossed-roller stiffness point across to LGC. Run the checklist before ordering: form (set, carriage only or rail only), size by load and moment, carriage style and length, count and rail length, accuracy and preload versus your measured datum error, grease fitting, and pairing code when ordering a replacement part.
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 LSH25HN2X460S20AN-M6 FAQ
Per carriage: dynamic C 26.9 kN, static C0 39.4 kN, moments MR 0.44 / MP 0.38 / My 0.38 kN.m; with two carriages sharing, the applied load divides between them. N grade running parallelism spans 12-37 um by rail length. Bolt the rail down with M6 screws at 1370 / 921 / 686 N.cm on steel / cast iron / aluminium, and re-grease each carriage (3.6 cm3 full charge, 1.1 cm3 top-up) every 100 km of travel or 3 to 6 months.
This SKU is a complete set: one 460 mm LSH25 rail plus its two matched square carriages. The mounting bolt caps supplied with the rail must be driven fully into the holes so swarf stays out of the ball circuit. Within the same LSH25 model, carriages are interchangeable and keep their smoothness and grade, so adding a third or fourth block on this rail later is straightforward.
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 LSH25HN2X460S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.