Airtac LSH Linear Guide Rail LSH15HN1X170S25AH-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15HN1X170S25AH-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
- Carriages1
- Rail length170 mm
- AccuracyH — high 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 LSH15HN1X170S25AH-M4
This code builds a full guide from two parts in one order: a 170 mm LSH15 rail with a 25 mm end-hole offset plus a single square standard-length carriage. Accuracy grade is H (high), preload A (none) and lubrication is via an M4 nipple. The geometry is the LSH standard - four ball rows at 45 degree contact in alternating arc raceways, giving the same load rating upward, downward and sideways, with self-alignment that soaks up small datum errors inside the carriage. Rail width is 15 mm.
The H grade is the point of this SKU: running parallelism sits in a 7-28 um band across the rail length, against 12-37 um for a normal-grade rail of the same size. Because the carriage is unpreloaded, the guide still tolerates a generous 130 um height error S and 25 um parallelism error P per 500 mm of spacing - high straightness without demanding a ground mounting surface. Ratings are C 11.3 kN, C0 17.9 kN and 0.12 kN.m in each moment direction.
Airtac LSH Linear Guide Rail LSH15HN1X170S25AH-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15HN1X170S25AH-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 | 1 |
| Rail length | 170 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 | H — high 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 LSH15HN1X170S25AH-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. |
| 1X170 | 1 carriage on a 170 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. |
| H | H — high 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, 170 mm |
| Carriage | Yes, 1 |
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 LSH15HN1X170S25AH-M4 Is Used
Granite plate scanner
A probe carriage traversing a granite surface plate on a 170 mm axis: the H-grade 7-28 um parallelism band keeps probe height drift inside the measurement budget.
Laser marker beam path
A focusing-head slide inside a marking cabinet: with no preload the head glides freely for manual setup, yet holds 7-28 um of straightness once the job runs.
PCB camera inspection rail
A top-down camera gantry over a printed-circuit line: high straightness keeps the focal plane constant across the stroke without a precision-ground frame.
Is the Airtac LSH Linear Guide Rail LSH15HN1X170S25AH-M4 the Right Guide?
Buy this grade when the process measures something - vision, metrology, laser - and the machine bed is milled rather than ground. If 7-28 um is tighter than the job needs, the N-grade LSH15 set costs less; if it is not tight enough, a P-grade carriage on this rail is an order we can quote. Duty lighter and envelope smaller? LRM is the slim alternative, though its load ratings are not published and we confirm them per enquiry. When MR moment rather than dynamic load sets the size, an LSH20 carriage (0.27 kN.m) or a second carriage on this rail addresses tipping. For short-stroke, high-stiffness points, crossed-roller LGC is the cross-over option. Checklist before ordering: form, size by load and moment, carriage style and length, count and rail length, accuracy and preload with the installation trade-off, grease fitting, and - for future spares - the pairing code letter on your carriage.
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 LSH15HN1X170S25AH-M4 FAQ
Dynamic rating C 11.3 kN and static C0 17.9 kN per carriage, with allowable static moments of 0.12 kN.m each for MR, MP and My. The high-accuracy running parallelism band is 7-28 um. Fixing is M4 screws at 412 / 274 / 206 N.cm on steel, cast iron and aluminium bases; mounting shoulder H 3.5 mm, H1 3 mm, H2 4 mm, corner radius max 0.5 mm. Lubrication: Mobilux EP2 or equivalent, 0.9 cm3 first charge and 0.3 cm3 top-up, repeated every 100 km of travel or every 3 to 6 months.
This is a complete set: one 170 mm rail and one square carriage, together with the rail bolt caps per the catalogue packing. The carriage is factory-matched to the rail and interchangeable with any LSH15 rail of the same model, so smoothness, preload and accuracy carry over. No pairing letter appears in a set code, but note it down anyway - a future carriage-only replacement must share the pairing code with this rail. Seat the bolt caps fully in their counterbores, tap flush using a flat plate and plastic mallet, then clean the rail, or swarf reaches the ball circuit.
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 LSH15HN1X170S25AH-M4
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.