Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-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 asCarriage / block only
- SizeLSH15
- Rail width15 mm
- Carriage lengthStandard carriage
- AccuracyH — high 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 LSH15BK-HN-H-E-M4
The LSH15BK-HN-H-E-M4 is the carriage on its own: a high-accuracy (H grade) square block, standard length, size 15, with an M4 grease nipple and pairing code E. It is not a complete guide - no rail is supplied, and this block is meant to run on an LSH15 rail that carries the same E pairing letter. Four rows of balls circulate in X-arranged 45 degree arc raceways, giving the same load capacity up, down, left and right, and the geometry absorbs small mounting-surface errors inside the block instead of turning them into binding. The 15 in the code is also the true rail width: 15 mm.
AirTAC rates this standard-length size 15 block at 11.3 kN basic dynamic (C) and 17.9 kN basic static (C0), with 0.12 kN.m allowable moment in each of the MR, MP and My directions. The H grade is the reason to choose it over the N grade carriage: H grade guides hold running parallelism between 7 and 28 um across the rail length bands, against 12 to 37 um for N, which is what keeps a measuring or optical axis from drifting over stroke.
Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-M4 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Carriage / block only |
| 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 |
| 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 |
| 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, 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 carriage only. Order a complete set if you also need a rail.
Model Code: Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| BK | Carriage / block only — no rail supplied. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| H | H — high 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 | Carriage / block only |
|---|---|
| Rail | No — not supplied with this item |
| Carriage | Yes, one |
This is a carriage on its own. NO RAIL 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 LSH15BK-HN-H-E-M4 Is Used
CMM axis carriage replacement
A coordinate measuring machine's 15 mm guide axis loses smoothness after years of scanning; a fresh H grade block restores parallelism within the 7-28 um band without replacing a sound rail.
Laser marking head rebuild
Re-carriaging the focus axis of a fibre laser marker, where height drift over stroke shows up directly as out-of-focus marks; the H grade limits that drift.
Optical inspection fixture
A lens-mounting slide on an automated inspection station takes a like-for-like block, keeping the optical axis aligned to the rail datum through every service interval.
Is the Airtac LSH Linear Guide Rail LSH15BK-HN-H-E-M4 the Right Guide?
Check the duty first. If loads are light and the envelope is tight, the smaller LRM series may do the job - its load ratings are not published, so send us the duty and we confirm them. If the moment governs, move up: an LSH20 square carriage lifts MR from 0.12 to 0.27 kN.m, more than double, for one part. Where travel is short and you need crossed-roller rigidity rather than long recirculating travel, LGC is the cross-step. Before ordering, tick every box: carriage-only form, size chosen on load AND moment, square standard block, one block per position with rail length ordered separately, H accuracy, M4 fitting on size 15, and pairing code E matching your rail. Preload is not ordered on this code - it is specified when you buy a complete set, and tighter preload narrows the mounting tolerance you must hold.
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 LSH15BK-HN-H-E-M4 FAQ
Basic dynamic C 11.3 kN and basic static C0 17.9 kN per carriage; allowable moment 0.12 kN.m in each of MR, MP and My; H grade running parallelism 7-28 um depending on rail length. Mount with M4 screws at 412 N.cm (steel), 274 N.cm (cast iron) or 206 N.cm (aluminium). Grease: 0.9 cm3 Mobilux EP2 first charge, 0.3 cm3 top-up, renewed every 100 km of travel or every 3 to 6 months, whichever comes first.
No. The box contains the carriage only - there is no rail, so you cannot build an axis from this part alone. Rails and carriages carry a pairing code, and this one is E: your rail must show the same letter. Any LSH15 carriage fits any LSH15 rail of the same model and keeps its smoothness and accuracy, so if your old block is worn but the rail is sound, read the code off the original part and send it with your enquiry so we match it.
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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 LSH15BK-HN-H-E-M4
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