Airtac LSH Linear Guide Rail LSH15HN2X320S40AN-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15HN2X320S40AN-M4 is a standard-type profile linear guide on a 15 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
- SizeLSH15
- Rail width15 mm
- Carriage lengthStandard carriage
- Carriages2
- Rail length320 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 LSH15HN2X320S40AN-M4
This LSH15 complete set pairs a 320 mm rail with two square standard-length carriages, its first mounting hole placed 40 mm in from each rail end (offset S40), leaving room for end machining, shoulders or shock stops before the bolt pattern starts. Accuracy is N, preload A - none - and each carriage carries an M4 fitting. At size 15 the rail is truly 15 mm wide. The carriages run on four recirculating ball circuits whose 45 degree X-layout arc raceways give every ball two contact points, so downward, uplift and side loads all meet the same rating, and minor seat imperfections are taken up inside the block rather than binding the travel.
Per carriage: 11.3 kN dynamic C, 17.9 kN static C0 and 0.12 kN.m in each moment direction. Static capacity runs roughly half as much again as dynamic across this series - a margin that protects against shock starts and crash stops rather than setting travel life, which follows C. Two blocks on the 320 mm span divide the payload and stiffen the axis against tipping along the travel. N grade parallelism lands in the 12-37 um band, and with no preload the matching second rail may differ in height by up to 130 um per 500 mm of spacing. The 320 mm length sits far inside the 4040 mm maximum for size 15, so longer equivalents are orderable.
Airtac LSH Linear Guide Rail LSH15HN2X320S40AN-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15HN2X320S40AN-M4 |
|---|---|
| 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 | LSH15 |
| Rail width | 15 mm |
| Carriage style | Square (compact) |
| Carriage length | Standard carriage |
| Carriages supplied | 2 |
| Rail length | 320 mm |
| Basic dynamic load rating C | 11.3 kN per carriage |
|---|---|
| Basic static load rating C0 | 17.9 kN per carriage |
| Allowable static moment | MR 0.12 / MP 0.12 / My 0.12 kN·m |
| Accuracy grade | N — normal grade |
| Preload grade | A — no preload |
| Mounting screws | M4 — 412 N·cm into steel, 274 cast iron, 206 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 LSH15HN2X320S40AN-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 2X320 | 2 carriages on a 320 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, 320 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 LSH15HN2X320S40AN-M4 Is Used
Bottling line indexing slide
A star-wheel feed on a small bottling machine advances bottle carriers along this 320 mm rail in fixed steps; two blocks per rail resist the tipping moment when a carrier overhangs the carriage set.
Packaging conveyor pusher guide
The side-push arm of a carton diverter rides this set; the 17.9 kN static rating per carriage absorbs the shock of contacting a moving carton at line speed.
Parcel sorter tray transfer
Lightweight tray carriers on logistics sorting equipment use the 320 mm span to match tray pitch; normal accuracy and no preload keep cost down on a duty that never needs metrology grade.
Is the Airtac LSH Linear Guide Rail LSH15HN2X320S40AN-M4 the Right Guide?
Judge the duty by moment before you judge it by load: 0.12 kN.m per carriage is the ceiling here, and an overhung tool finds that limit first - LSH20 N raises the figure to 0.27 kN.m and the long LSH20 block to 0.35 kN.m, without a major redesign of the mounting spine. For lighter, smaller work the LRM miniature series steps down, but its load ratings are not published, so we validate them with you before an order is placed. Short-travel, high-stiffness points suit LGC crossed-roller guides better than a recirculating ball rail. Order checklist: complete set versus carriage-only; size against load AND moment; square standard carriage; two blocks on 320 mm; N grade; no preload and its generous 130 um height tolerance; M4 greasing point. Pairing codes concern separate carriage and rail purchases - a matched set like this one carries none.
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 LSH15HN2X320S40AN-M4 FAQ
Per standard square carriage: dynamic rating 11.3 kN, static rating 17.9 kN, allowable static moments 0.12 kN.m each for MR (roll), MP (pitch) and My (yaw). Running parallelism, N grade: 12-37 um. Rail fixing: M4 screws torqued to 412 / 274 / 206 N.cm on steel / cast iron / aluminium. Grease: Mobilux EP2 pre-filled at 0.9 cm3 per block; renew with 0.3 cm3 per 100 km of travel or every 3 to 6 months, whichever the machine reaches first, then stroke the block at least three carriage-lengths twice and check for an even film on the rail.
Yes - one 320 mm rail with two square standard carriages already fitted, accuracy N, preload A, M4 nipples, plus bolt caps for the screw holes. No pairing code is needed or supplied; that letter exists only for carriage-only and rail-only purchases that must match existing parts. Not included: the second parallel rail a two-axis machine needs, the mounting screws, end machine stops, or any wipers beyond the standard end seals. If your original part was a separate carriage, read its pairing letter before reordering.
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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 LSH15HN2X320S40AN-M4
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