Airtac LSH Linear Guide Rail LSH20HN2X220S20AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN2X220S20AN-M6 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 asComplete guide set
- SizeLSH20
- Rail width20 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length220 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 LSH20HN2X220S20AN-M6
At 220 mm of rail this is the compact end of the LSH20 family: a complete set of one short hardened profile rail with the S20 end-hole offset and two standard square carriages already seated on it, ordered here without preload (A) at normal accuracy (N) with an M6 side fitting. Size 20 is a true 20 mm rail width, with a 4.3 mm shoulder and R max 0.5 mm at the mounting-surface corners. Four rows of recirculating balls run at 45 degree contact in X-shaped arc grooves, and because carriages are interchangeable within the model, either block can be slid off for service and re-seated on any same-model rail without losing smoothness or grade.
A short set still carries full size-20 ratings: 18.6 kN dynamic and 28.6 kN static per standard carriage, moments MR 0.27 / MP 0.25 / My 0.25 kN.m. Two blocks spaced along the 220 mm rail resist tipping along the stroke far better than a single block, which is often the deciding factor on a compact axis. No preload keeps the mounting tolerance generous - 25 um of parallelism and 130 um of height error per 500 mm of spacing - and the platform still has 3820 mm of headroom below the 4040 mm Lmax if a longer section is ever needed.
Airtac LSH Linear Guide Rail LSH20HN2X220S20AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN2X220S20AN-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 | LSH20 |
| Rail width | 20 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 220 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 | N — normal grade |
| Preload grade | A — no preload |
| 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 |
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 LSH20HN2X220S20AN-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 20 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 2X220 | 2 carriages on a 220 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, 220 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 LSH20HN2X220S20AN-M6 Is Used
Benchtop milling machine X-axis retrofit
Converting a small hobby or toolroom mill to linear guides is a classic use for a short set: the 220 mm rail matches a typical table travel, twin blocks stop the table rocking under side cutting loads, and no preload keeps handwheel feel light.
Motorised microscope scanning stage
A scanning stage stepping a sample under an objective needs repeatable, low-friction motion in a few hundred millimetres. Grade N accuracy and the twin-carriage layout hold the sample plate flat, while the short rail fits inside a compact instrument frame.
Pick-and-place module in a compact assembly cell
A small gantry module moving a vacuum gripper between feeder and fixture runs on short axes. The two carriages on one rail carry the overhung gripper without pitch, and the M6 fitting allows a quick 0.6 cm3 grease dose during cell servicing.
Is the Airtac LSH Linear Guide Rail LSH20HN2X220S20AN-M6 the Right Guide?
On a 220 mm stroke the cross-over choice is real: if the travel is short and the job wants crossed-roller stiffness over recirculating-ball smoothness, LGC is the natural alternative and we will size it with you. Stay with this set when you want free-running motion, a low mounting tolerance burden and the option to extend the rail later. If the duty is lighter still and the envelope tighter, step down to LRM - note its load ratings are not published, so we confirm them for your case first. If the load is offset or overhung, the moment decides: MR 0.27 kN.m per standard block here, 0.35 with a long LSH20 carriage, 0.44 with a step up to LSH25. Order checklist: confirm the form (this is a complete set), size by load and moment together, carriage style and length, block count, rail length and end offset, accuracy and preload with the installation trade-off in mind, and the grease fitting - M6 belongs to the size 20 family.
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 LSH20HN2X220S20AN-M6 FAQ
Per standard carriage: dynamic rating C 18.6 kN, static rating C0 28.6 kN, moments MR 0.27 / MP 0.25 / My 0.25 kN.m, catalogue values in kN. Accuracy N gives a 12-37 um running parallelism band. Mounting uses M5 screws at 882 N.cm into steel, 588 N.cm into cast iron, 441 N.cm into aluminium, with corner radii on the mounting face kept at or under 0.5 mm. Each standard carriage is charged with 1.8 cm3 of Mobilux EP2 and takes 0.6 cm3 on re-grease through the M6 fitting, every 100 km of travel or every 3-6 months.
It is a complete, matched set: one 220 mm rail with both square carriages supplied on it, so no pairing code is needed and no separate rail or carriage purchase is required. Keep the carriages on the rail until the moment of mounting to keep swarf out of the ball circuit, drive the supplied bolt caps fully into the screw holes and clean the rail afterwards. If you later need a replacement block on its own, order a carriage-only code and quote the pairing letter from the original - carriages and rails of the same model must share it.
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 LSH20HN2X220S20AN-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.