Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E
The AirTAC Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E 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 asRail only
- SizeLSH25
- Rail width23 mm
- Rail length460 mm
- AccuracyH — high grade
- 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 LSH25RLX460-S20-H-E
This is a short, high-accuracy rail sold on its own: LSH25RLX460-S20-H-E gives you one 460 mm piece of the AirTAC LSH25 profile rail in H (high) grade, drilled so the first mounting hole sits 20 mm in from each end - the S20 end-hole offset in the code. There is no carriage in the box, no preload grade and no grease point on the rail itself; the carriage you fit, coded E, carries all of that on its four 45 degree ball rows. As with every size 25 and up, the real rail width is 23 mm, so set your pocket to that figure, not the 25 in the code.
Running parallelism for the H grade is 7-28 um over the length. A 460 mm span typically takes a single carriage or a short two-carriage shuttle, and the S20 offset gives you clean bolt positions right at the rail ends where a cut-to-length aftermarket rail would leave you guessing. Fastening is M6 top-lock screws, and the bolt caps supplied must be tapped flush into their counterbores with a flat plate over them, then the rail wiped clean, before the carriage runs.
Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Rail only |
| 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) |
| 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 | H — high grade |
| 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, matched by the pairing code |
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. This item is a rail only. Order a complete set if you also need a carriage.
Model Code: Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| RL | Rail only — no carriage supplied. |
| H | H — high grade. |
| Pairing code | Rails and carriages must share a pairing code. Take it from the original part when replacing. |
| -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 | Rail only |
|---|---|
| Rail | Yes, 460 mm |
| Carriage | No — not supplied with this item |
This is a bare rail cut to length. NO CARRIAGE IS INCLUDED. 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 LSH25RLX460-S20-H-E Is Used
Pick-and-place rail section swap
A crash or coolant swarf scoring one 460 mm section of a pick-and-place rail does not justify new carriages - a same-length H-grade replacement with E pairing drops straight onto the existing carriages.
Benchtop camera inspection slide
A vision inspection camera gliding 300 mm over a lab bench gets H-grade straightness in a compact 23 mm wide rail, with the S20 holes keeping the fixings clear of the end caps.
Dispensing head shuttle
A benchtop adhesive dispensing cell shuttling its head over 350 mm pairs one E-coded carriage with this short rail, and the 20 mm end offset lets the mounting screws sit close to the stroke limits.
Is the Airtac LSH Linear Guide Rail LSH25RLX460-S20-H-E the Right Guide?
Because this listing has no carriage, your load and moment decisions happen on the E-paired carriage page - pick that by load and by moment together, not by C alone. If your actual duty is lighter and smaller than size 25 suggests, the LRM series may shrink the envelope further, though its ratings are unpublished and we confirm them for you. If the travel is genuinely short and crossed-roller stiffness is what you are after, compare LGC before committing. And if a cantilevered load tips the carriage, a long carriage or one size up often fixes it more cheaply than a redesign.
Before ordering, tick off: rail only (confirm the form you need); pairing code E on both parts; carriage style, length and count to suit load AND moment; accuracy grade versus the installation tolerance you can hold - preload, if chosen on the carriage, tightens that tolerance; the carriage's grease fitting; and the original full SKU if this replaces a damaged 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 LSH25RLX460-S20-H-E FAQ
Rail width 23 mm; length 460 mm with the first hole 20 mm from each end (S20); H-grade running parallelism 7-28 um; top-lock mounting with M6 screws at 1370 / 921 / 686 N.cm for steel / cast iron / aluminium; shoulders H 6.5, H1 5, H2 5 mm; corner radius at the abutment max 1 mm. Load and moment ratings, preload and grease charge all sit with the E-coded carriage, not with this rail.
One 460 mm H-grade LSH25 rail and its bolt caps - that is all. No carriage is included, so nothing here should be read as a complete set. To fit a carriage, its pairing code must read E, the same as this rail. If you are replacing a damaged section, read the code off your existing carriage or send us the complete original LSH number and we will confirm the match.
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 LSH25RLX460-S20-H-E
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.