Airtac LSH Linear Guide Rail LSH25RLX220-S20-N-E
The AirTAC Airtac LSH Linear Guide Rail LSH25RLX220-S20-N-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 length220 mm
- AccuracyN — normal 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 LSH25RLX220-S20-N-E
The LSH25RLX220-S20-N-E is a short, simply-graded spare: one 220 mm LSH25 profile rail in normal accuracy grade N, first holes 20 mm in from each end, and no carriage of any kind. Because the ratings, preload and grease all belong to the carriage, none are quoted for the rail. What the rail provides is the hardened raceway track that the paired block's four rows of balls ride at 45 degree contact - the geometry that balances load capacity in all four directions and lets the pair self-align. Size 25 rail is truly 23 mm wide; check the seat, not the code.
Grade N parallelism is 12-37 um across the band, which is ample for most machine-built slides. At 220 mm the rail is a small cut against the 4040 mm Lmax for size 25. One practical point for the pair: the block carries the grease, and on a short stroke the 100 km re-grease interval can arrive well before the 3-6 month calendar - a 100 mm stroke cycling once a second covers the distance in under two weeks.
Airtac LSH Linear Guide Rail LSH25RLX220-S20-N-E Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25RLX220-S20-N-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 | 220 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 |
| 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 LSH25RLX220-S20-N-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. |
| N | N — normal 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, 220 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 LSH25RLX220-S20-N-E Is Used
Benchtop saw fence slide
The fence carriage on a small table saw or benchtop machine glides on a short rail; replacing a pitted 220 mm length with this grade N rail restores smooth travel for the cost of one part.
Microscope stage fine adjustment
A lab tunes the focus or X-shift of an inspection microscope using a code E carriage on this 220 mm rail, where normal grade straightness is more than enough for the optics.
Fast part-ejector slide
A high-cycle ejector on a press aux station runs a short, rapid stroke; the paired carriage sees grease traffic quickly - its 100 km re-grease interval on a 100 mm stroke at one cycle per second passes in under two weeks.
Is the Airtac LSH Linear Guide Rail LSH25RLX220-S20-N-E the Right Guide?
This is the part to price when a short slide has worn and the machine is otherwise sound. A lighter or more compact duty may still drop to the smaller LRM series - ratings unpublished, so we confirm them - and short-travel work that needs crossed-roller stiffness over recirculating travel belongs on LGC. For the LSH25 route, confirm every item: form (rail only), the carriage sized on load AND moment, style and length, carriage count, this 220 mm length, grade N accuracy (or H/P where the application justifies it) and preload, remembering a firmer preload shrinks the allowable mounting error, the carriage's grease fitting, and the E pairing code on both halves.
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 LSH25RLX220-S20-N-E FAQ
Normal accuracy grade N: 12-37 um running parallelism across the length band. Length 220 mm, holes 20 mm from each end, against a 4040 mm Lmax for size 25. Mounting screws M6 at 1370 N.cm in steel, 921 N.cm in cast iron, 686 N.cm in aluminium. Shoulders H 6.5, H1 5, H2 5 mm, corner radius max 1 mm. No load rating, preload or grease quantity is quoted - the carriage, not the rail, defines those.
It does not - this SKU is the rail alone and must never be ordered as a complete guide. Match the carriage by the pairing letter: this rail is E, so order an E-coded LSH25 carriage separately. If you are replacing just the rail, read the letter and the rest of the code off the original before ordering; if the carriage itself is the worn part, buying that instead is usually the cheaper repair, provided the rail surface is still sound.
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 LSH25RLX220-S20-N-E
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.