Airtac LSH Linear Guide Rail LSH15BK-HN-P-B-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-HN-P-B-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
- AccuracyP — precision 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-P-B-M4
Here is the precision grade version of the LSH15 carriage, sold as the block alone: one square, standard-length carriage with an M4 nipple and pairing code B. The rail it runs on is not part of this listing. At size 15 the profile rail is genuinely 15 mm wide. Four rows of recirculating balls bear on X-arranged 45 degree arc raceways, giving equal capacity in all four directions and enough self-alignment to forgive small machining errors on the mounting face - within the published limits, not beyond them.
The precision grade matters: running parallelism lands in the 3-21 um band, a fraction of the 12-37 um band a normal grade block shows. Buy that tightness only where the axis is actually measured, and match it with a precision grade rail - a P carriage on an N rail will measure like the rail. Per block the ratings stay 11.3 kN dynamic, 17.9 kN static and 0.12 kN.m of moment per axis, since accuracy grade does not change the load table.
Airtac LSH Linear Guide Rail LSH15BK-HN-P-B-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-HN-P-B-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 | P — precision 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-P-B-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. |
| P | P — precision 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-P-B-M4 Is Used
Toolroom measuring microscope stage
The moving stage of a workshop measuring microscope needs its travel error below the tolerance the crosshair can resolve. A precision grade block coded B keeps the 3-21 um parallelism band intact through a block replacement.
Lens production alignment fixture
Centering a lens element before bonding is done on a small fixture that shifts the optic fractions of a millimetre. A precision carriage on an equally precise rail is what stops drift showing up as a decentered element.
PCB inspection camera bridge
An inspection camera riding a short LSH15 bridge over a circuit board must hold focus plane across its stroke. Swapping in a precision block restores the constant height the original build relied on.
Is the Airtac LSH Linear Guide Rail LSH15BK-HN-P-B-M4 the Right Guide?
Treat accuracy as a purchase decision, not a default. If the machine's positioning spec can live with 12-37 um of running parallelism, the normal grade carriage costs less and lasts the same. Reserve this P grade block for axes where trace errors show up in the part - metrology stages, optical alignment, inspection cameras. It still leaves the same sizing logic: for a cantilever needing more than 0.12 kN.m of moment, step up to LSH20 or take a long carriage; for compact light duty, LRM may suffice (ratings unpublished, we confirm them); for short-travel crossed-roller rigidity, LGC is the cross-over. Checklist for the order: form (this is carriage only - no rail included), size by load and moment, block style and length, count and rail length, accuracy grade on both carriage and rail, preload with its installation tolerance trade-off, grease fitting from the size 15 M4 family, and pairing code B off the original.
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-P-B-M4 FAQ
For size 15, standard length, precision grade: C 11.3 kN dynamic, C0 17.9 kN static, moments MR/MP/My each 0.12 kN.m, running parallelism band 3-21 um. Mounting hardware is M4 rail screws torqued to 412 / 274 / 206 N.cm in steel, cast iron and aluminium respectively. Grease is Mobilux EP2 from new: 0.9 cm3 first charge, 0.3 cm3 per top-up, on a 100 km or 3 to 6 month cycle.
One carriage - square type, standard length, precision grade, M4 nipple fitted. No rail ships with it, and the listing price covers the block only. The letter B is the pairing code: the rail you buy must carry the same letter in its own code. If you are replacing a worn block, read the pairing letter off the old carriage's part number; if you cannot find it, send us the full code from the rail and we will match 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 LSH15BK-HN-P-B-M4
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.