Airtac LSH Linear Guide Rail LSH20RLX460-S20-H-E
The AirTAC Airtac LSH Linear Guide Rail LSH20RLX460-S20-H-E is a standard-type profile linear guide on a 20 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
- SizeLSH20
- Rail width20 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 LSH20RLX460-S20-H-E
This listing is the rail on its own: an AirTAC LSH20 high accuracy profile rail cut to 460 mm, end-drilled for top-lock screw fixing with the S20 hole offset. NO CARRIAGE IS INCLUDED - you are buying the hardened guide track, 20 mm wide, that size 20 LSH carriages ride on. The raceways are ground as X-shaped arcs, so the four ball rows meet the rail at 45 degrees from alternating directions; that geometry is what gives an LSH guide equal capacity up, down and sideways once a carriage is fitted, and lets the carriage absorb slight mounting misalignment instead of binding.
At 460 mm this cut sits well inside the 4040 mm maximum rail length for size 20, so a longer section can be ordered later if the machine grows. The high accuracy grade carries a running parallelism band of 7-28 um, roughly half the 12-37 um of the normal grade. Fixing is by M5 socket screws torqued to 882 N.cm in steel, and the counterbored holes accept the bolt caps supplied with the rail - drive those caps in flush or swarf will reach the ball circuit once a carriage runs on it.
Airtac LSH Linear Guide Rail LSH20RLX460-S20-H-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20RLX460-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 | LSH20 |
| Rail width | 20 mm |
| Rail length | 460 mm |
| Basic dynamic load rating C | 18.6 kN per carriage |
|---|---|
| Basic static load rating C0 | 28.6 kN per carriage |
| Allowable static moment | MR 0.27 / MP 0.25 / My 0.25 kN·m |
| Accuracy grade | H — high grade |
| Mounting screws | M5 — 882 N·cm into steel, 588 cast iron, 441 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 LSH20RLX460-S20-H-E
| LSH | LSH Series Linear Guide. |
|---|---|
| 20 | Size code. |
| 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 LSH20RLX460-S20-H-E Is Used
Benchtop pick-and-place rebuild
Re-railing a compact pick-and-place axis after a crash: the H grade 7-28 um parallelism band helps the vision system re-reference without re-teaching every teach point.
Drilling fixture slide re-track
A machine shop replacing the worn 460 mm track under a drilling fixture can keep its existing LSH20 carriages - just confirm they carry the same E pairing code.
Laser alignment fixture datum
Building a straightness-checking fixture where the reference edge matters: a 460 mm high grade cut gives a calibrated straight datum that a normal grade length would not.
Is the Airtac LSH Linear Guide Rail LSH20RLX460-S20-H-E the Right Guide?
Choose the rail alone when you already have serviceable LSH20 carriages or are standardising on code E parts. If the duty is light and the envelope tight, LRM may do the job in a smaller footprint - its load ratings are not published, so we confirm them for your case before you commit. Where travel is short and you need crossed-roller rigidity rather than long recirculating travel, LGC is the cross-check. Before ordering, tick off: form (rail only, no block), length and end offset, accuracy grade against your parallelism target, mounting direction (this one is top-lock), and the E pairing letter on your existing carriages.
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 LSH20RLX460-S20-H-E FAQ
Accuracy grade H gives a running parallelism band of 7-28 um. Mounting screws are M5, torqued to 882 / 588 / 441 N.cm in steel / cast iron / aluminium. Rail shoulder is H 4.3 mm (H1 3.5, H2 5) with a maximum 0.5 mm corner radius. Maximum rail length in size 20 is 4040 mm; this cut is 460 mm. Pairing code is E. There are no load ratings on the rail itself - those belong to the carriage.
No. You receive one 460 mm rail only - no carriage, no preload setting and no grease charge of its own. To complete the guide, order an LSH20 carriage whose ordering code carries the same E pairing letter; any LSH20 carriage runs on this rail and keeps its rated smoothness, preload and accuracy.
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 LSH20RLX460-S20-H-E
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.