Airtac LSH Linear Guide Rail LSH15BK-F2N-H-D-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-F2N-H-D-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-F2N-H-D-M4
LSH15BK-F2N-H-D-M4 is a carriage-only SKU from the AirTAC LSH range: one standard-length F2 bottom-flange block, high accuracy grade, M4 grease nipple, pairing letter D - and no rail in the package. Reading the ratings correctly decides whether this block is big enough. Four ball rows at 45 degree contact in X-shaped raceways make capacity equal in all four directions, but the moment figures are often the real limit: this size 15 block is rated 0.12 kN.m on the MR, MP and My axes against 11.3 kN dynamic and 17.9 kN static load. Size 15 runs on a 15 mm rail.
If 0.12 kN.m feels marginal, one size up pays quickly: LSH20 lifts MR to 0.27 kN.m, about 125 percent more moment capacity for one part number change, with the rail growing only from 15 to 20 mm wide. Two carriages on one rail tackle a different problem - tipping along the direction of travel. Keep both angles in mind with a cantilevered load, because for overhangs the moment rating usually decides the size before the dynamic rating does.
Airtac LSH Linear Guide Rail LSH15BK-F2N-H-D-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-F2N-H-D-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 | Flange, bottom mounting |
| 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-F2N-H-D-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-F2N-H-D-M4 Is Used
Test handler tray shuttle
An electronic component test handler's tray shuttle sees stop-start duty; a D-paired spare block swaps in when the original develops fretting, with 17.9 kN static in hand for clamped-down holding.
Packaging machine cam slide
Replace a noised-up block on a cartoner's cam-operated slide, where the F2 flange bolts from beneath and the machine frame keeps the fixings hidden.
Adhesive dispensing head guide
Guide a dispense valve across a PCB panel on size 15 rails, where the 0.12 kN.m MR rating and a short overhang keep the nozzle path repeatable.
Is the Airtac LSH Linear Guide Rail LSH15BK-F2N-H-D-M4 the Right Guide?
Fix these inputs before ordering: the form is carriage only, the pairing code is D, the style is F2 bottom-flange and the accuracy grade H. Size by load and moment together - an 11.3 kN dynamic rating is easy to clear, a 0.12 kN.m overhang moment often is not. For a light, small-envelope duty, look down to AirTAC's LRM guide and let us confirm its unpublished ratings by RFQ; for a short stroke needing crossed-roller stiffness, look across to LGC; for more moment per part, look up to LSH20 or to a long carriage. If you rebuild as a complete set instead, choose the preload consciously: on size 15, going from no preload to medium cuts the allowable height error at 500 mm rail spacing from 130 um to 35 um, so rigidity is paid for in installation precision. Grease fittings on this size stay in the M4 family.
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-F2N-H-D-M4 FAQ
Standard-length block: C 11.3 kN dynamic, C0 17.9 kN static, MR 0.12 / MP 0.12 / My 0.12 kN.m static moments, H grade parallelism 7-28 um by rail length. Mount the mating rail with M4 screws at 412 / 274 / 206 N.cm for steel / cast iron / aluminium, with shoulder dims H 3.5, H1 3, H2 4 mm and corner radius max 0.5 mm. Grease is Mobilux EP2, 0.9 cm3 charge, 0.3 cm3 top-up, interval 100 km of travel or 3 to 6 months.
No rail is included - this is the block alone, matched to a D-coded LSH15 rail by its pairing letter. A carriage-only code carries no preload position; when you need a defined preload, order the complete set code instead and accept its tighter installation tolerances - medium preload on size 15 allows only 35 um of height error at 500 mm spacing versus 130 um with none. Quote the D code from your original part when replacing.
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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-F2N-H-D-M4
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