Airtac LSH Linear Guide Rail LSH15BK-F1N-N-C-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-F1N-N-C-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
- AccuracyN — normal 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-F1N-N-C-M4
Order code LSH15BK-F1N-N-C-M4 buys one carriage and nothing else: a standard-length, top-flange F1 block for 15 mm wide LSH rail, accuracy grade N, lubricated through an M4 nipple, matched by pairing code C. No rail comes with it. The F1 flange is the mounting story here - the bolt holes sit in the top face, so you clamp the block onto a tapped plate without reaching underneath, while the four ball rows in 45 degree X-arranged raceways forgive a small amount of mounting-surface error by flexing internally rather than jamming. Rail seat shoulder figures: H 3.5, H1 3, H2 4 mm, with the plate corner radius kept at or below 0.5 mm.
Because this is a replacement part, match the running quality you already have: carriages of one LSH model are interchangeable across rails of that model and keep their accuracy - normal grade N gives a running parallelism band of 12 to 37 um over the rail length range. Whether the rail is pulled flat to its datum and torqued correctly (M4 screws, 412 N.cm in steel) decides most of the accuracy you actually achieve; no block can compensate for a badly bolted rail.
Airtac LSH Linear Guide Rail LSH15BK-F1N-N-C-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-F1N-N-C-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, top 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 | N — normal 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-F1N-N-C-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. |
| N | N — normal 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-F1N-N-C-M4 Is Used
Aluminium-extrusion jig trolley
A trolley sliding along a fixture built from 40 mm profile extrusion gets its block replaced without dismantling the frame, because the F1 flange bolts down from the top face where a hex driver can reach.
SMT pick-and-place head slide
An electronics assembler refreshing the head slide of a desktop pick-and-place machine keeps the original 15 mm rails; the normal accuracy grade matches the positioning resolution the machine was tuned to.
Drill jig serviceable from above
A drill jig clamped inside a deep frame can only be worked on from the top; the top-flange F1 pattern lets a technician swap the block with the fixture still bolted to the table.
Is the Airtac LSH Linear Guide Rail LSH15BK-F1N-N-C-M4 the Right Guide?
Judge the mounting surface first. If the plate corner radius exceeds 0.5 mm the rail seat will not pull flush - rework it before blaming the block. If your machine needs a lighter, smaller envelope for light duty, the LRM miniature series steps down, though its load figures are unpublished and we confirm them per enquiry; if travel is short and you want crossed-roller rigidity, LGC steps across. Where the 0.12 kN.m moment ceiling of size 15 is the limit, moving to LSH20 more than doubles MR to 0.27 kN.m. Checklist for this code: carriage only, rail not included; F1 top-flange, standard length; size 15 sized on load and moment together; a single block; accuracy N; M4 nipple; pairing code C on both block and rail. Preload grades exist only in complete-set codes - ask if you need one defined.
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-F1N-N-C-M4 FAQ
Catalogue ratings per carriage: C 11.3 kN dynamic, C0 17.9 kN static, MR, MP and My all 0.12 kN.m. Accuracy N corresponds to a running parallelism of 12-37 um across the rail length bands. The matching rail uses M4 socket screws at 412, 274 and 206 N.cm for steel, cast iron and aluminium seats. Lubrication is 0.9 cm3 at first fill and 0.3 cm3 per top-up, refreshed after every 100 km of travel or every 3 to 6 months.
One flange carriage, standard length, with an M4 grease nipple. No rail is supplied - this code is not a complete guide on its own. The C after the accuracy letter is the pairing code; your replacement block and the rail it runs on must both carry the same letter, so check the rail end or the old block before ordering. Blocks of the same LSH model interchange freely on that model's rails, keeping their accuracy and running smoothness.
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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-F1N-N-C-M4
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.