
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-HN-N-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.
This listing is the carriage alone - one AirTAC LSH15 square block, standard length, normal accuracy grade, supplied with an M4 grease nipple. No rail is included and none is hidden in the price; you are buying the recirculating-ball block that rides an LSH15 profile rail, which at this size truly measures 15 mm wide. Inside the block, four rows of balls run in X-arranged arc raceways cut at 45 degrees, so it carries load equally up, down and sideways while soaking up slight mounting-surface error instead of binding. Its pairing code is E.
Per block, the catalogue rates this standard-length size 15 carriage at 11.3 kN basic dynamic and 17.9 kN basic static, with 0.12 kN.m of allowable static moment in each of the roll, pitch and yaw axes. Normal grade running parallelism sits in the 12-37 um band. Since any LSH15 carriage fits any LSH15 rail of the same model and keeps its smoothness, ordering a spare coded E lets you swap a worn block without re-shimming the machine.
| Model | Airtac LSH Linear Guide Rail LSH15BK-HN-N-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 | 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.
| 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. |
| 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.
A drill jig that slides on two LSH15 rails of a jig-borer table loses accuracy when one block scores. A normal grade spare with E code restores the original running fit without disturbing the setup.
When the blocks on a small XY dispensing gantry develop flat spots, replacing just the carriages - rails staying in place - is the cheap fix, and normal grade accuracy was always enough for a glue bead.
A semi-automatic capper on a bottling line drops its head down a short guided stroke. Light load, short travel, and a normal grade LSH15 block coded E keep the replacement simple and inexpensive.
First confirm the form: this is a carriage-only purchase, correct only when the rail is sound and reusable. Size by load AND moment, not load alone - if a cantilevered load needs more than 0.12 kN.m of roll moment, move up to LSH20 (MR 0.27 kN.m) or to a long carriage rather than adding blocks. For light duty in tight envelopes, AirTAC's LRM miniature series may do the job, though its load ratings are not published, so we confirm them for you; for short travels where crossed-roller rigidity matters more than long recirculating travel, step across to LGC. Before ordering, tick off: form (carriage / rail / set), size chosen on load and moment together, block style and length, count and rail length, accuracy grade and preload - knowing preload tightens the installation tolerances - grease fitting (size 15 accepts only the M4 family: M4, AM6, LM6), and the pairing code off the original part, which here is E.
Quick checklist
Basic dynamic load rating C is 11.3 kN and basic static C0 is 17.9 kN per block. Allowable static moments are MR 0.12, MP 0.12 and My 0.12 kN.m. Normal grade running parallelism falls in the 12-37 um band over the rail length. The rail bolts down with M4 screws at 412 N.cm into steel, 274 into cast iron, 206 into aluminium. The block arrives pre-filled with Mobilux EP2; first charge 0.9 cm3, top-up 0.3 cm3, re-grease every 100 km of travel or every 3 to 6 months, whichever comes first.
No - the box holds one square carriage with its M4 nipple and nothing else. There is no rail, no mounting screws and no bolt caps. To order the matched rail you need the pairing code, which is E for this SKU; the rail's part number carries the same letter (for example LSH15RLX...-E). Read the code from the label or end stamp of the original part before you order.
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Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.