Airtac LSH Linear Guide Rail LSH20HN2X2950T2950AN-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20HN2X2950T2950AN-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 length2950 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 LSH20HN2X2950T2950AN-M6
LSH20HN2X2950T2950AN-M6 is a spliced complete set: two 2950 mm rail sections, each 20 mm wide, joined end to end under the T code to give a single travel path of 5900 mm - well beyond the 4040 mm ceiling for one piece of size 20 rail. Two standard square carriages run across the sections, riding four-row, 45 degree X raceway geometry that spreads load equally in all four directions and self-aligns against slight base-plate error. Preload is A, accuracy is N, and both blocks take lubrication through an M6 fitting.
Ratings stay per carriage: 18.6 kN dynamic, 28.6 kN static, 0.27 / 0.25 / 0.25 kN.m for MR / MP / My. The engineering that decides success here is the joint: both section ends must rest on a continuous flat support, be drawn together square, and be screwed down at the full M5 torque - 882 N.cm into steel - so a carriage crosses the seam without a dip. Get that right and the two-piece approach buys travel a single rail physically cannot reach; get it wrong and the seam announces itself under every crossing.
Airtac LSH Linear Guide Rail LSH20HN2X2950T2950AN-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20HN2X2950T2950AN-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 | 2950 mm (spliced sections) |
| 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 LSH20HN2X2950T2950AN-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. |
| 2X2950 | 2 carriages on a 2950 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, 2950 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 LSH20HN2X2950T2950AN-M6 Is Used
Long-bed PCB pallet line
A through-hole insertion line slides populated PCB pallets roughly 5 m between stations; the spliced rail provides one continuous guideway across the whole bed without a mid-bed break.
Pallet labelling gantry
A warehouse print-and-apply head traverses a 5 m bed to label pallets of differing widths, the twin carriages resisting pitch as the applicator swings down onto each load.
Planer-thicknesser retrofit
A woodworking shop converts an old jointer's feed bed to powered travel; the no-preload N-grade set tolerates the flatness limits of the retrofitted cast base.
Is the Airtac LSH Linear Guide Rail LSH20HN2X2950T2950AN-M6 the Right Guide?
On machines this long, decide early whether the full 5900 mm of joined travel is genuinely needed - if 4040 mm or less suffices, a one-piece rail avoids the seam entirely. If the load sits far below 18.6 kN dynamic per carriage, ask us about LRM, whose ratings are unpublished and need confirming against your duty. If the axis is actually short and the requirement is stiffness per millimetre of stroke, crossed-roller LGC will outperform a recirculating set of this size. Size by moment too: MR is 0.27 kN.m per standard block here, and either the long LSH20 carriage (0.35 kN.m) or LSH25 (0.44 kN.m) answers a cantilever more directly than bolting on extra blocks. Order checklist: complete set versus carriage-only or rail-only codes; size against load and moment; square or flange carriage; standard or long block; block count; rail length and splice arrangement; accuracy grade; preload balanced against the mounting error it consumes; grease fitting; and the pairing code from your existing parts when matching into an installed machine.
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 LSH20HN2X2950T2950AN-M6 FAQ
Each standard square carriage: C 18.6 kN dynamic, C0 28.6 kN static, moments MR 0.27 / MP 0.25 / My 0.25 kN.m; N-grade running parallelism 12-37 um over its length band. Fixing: M5 screws at 882, 588 or 441 N.cm for steel, cast iron and aluminium respectively. Greasing: 1.8 cm3 initial charge and 0.6 cm3 top-up of Mobilux EP2, every 100 km of travel or every 3 to 6 months.
Two 2950 mm rail sections plus two square carriages, no preload, N accuracy. Butt the sections together on a continuous machined support, drive the supplied bolt caps fully into the screw holes - seat each cap in its counterbore, lay a flat plate over it, tap vertically with a plastic mallet, then clean the rail - so swarf cannot reach the ball circuit, and torque the M5 fixings fully so a carriage crosses the seam without a step. The carriages are interchangeable within LSH20: any block of this model fits any LSH20 rail and keeps its smoothness, preload and grade.
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 LSH20HN2X2950T2950AN-M6
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