Airtac LSH Linear Guide Block LSH15BK-HN-P-E-M4
The AirTAC Airtac LSH Linear Guide Block LSH15BK-HN-P-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
- 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 Block LSH15BK-HN-P-E-M4
This SKU is the carriage on its own: one AirTAC LSH15 square block of standard length, P precision grade, with an M4 grease point and pairing code E. No rail is included in the box, so it is ordered alongside LSH15RLX rail carrying the same E code. Inside, four rows of balls circulate through X-arranged arc raceways set at 45 degrees with two contact points per ball, which equalises capacity upward, downward and sideways and lets the block absorb slight mounting-surface error instead of binding on it.
Per carriage the catalogue rates this size at 11.3 kN dynamic and 17.9 kN static, with 0.12 kN.m available on each of the MR, MP and My axes. P grade holds running parallelism within 3-21 um, graded by rail length. Since a bare block costs roughly a quarter of what a complete assembly does, fitting this carriage to a sound rail is usually the cheapest way to bring a machine back to spec.
Airtac LSH Linear Guide Block LSH15BK-HN-P-E-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH15BK-HN-P-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 | 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 Block LSH15BK-HN-P-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. |
| 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 Block LSH15BK-HN-P-E-M4 Is Used
Worn-block renewal on a CNC router gantry
When a light-production router starts knocking at one end of travel, a scored carriage is the usual culprit. Swap in this coded block and the original rail keeps its ground accuracy - no realignment of the frame needed.
P-grade rebuild of a jig-borer positioning stop
Where a normal-grade block leaves too much drift on a jig borer's setting stop, this P-grade carriage tightens running parallelism to the 3-21 um band without touching the rail.
Coded spare for an electronics assembly changeover
Keep one pairing-E block in the maintenance drawer so a changeover on a PCB depanner or test fixture is a quick unbolt-and-replace rather than a teardown.
Is the Airtac LSH Linear Guide Block LSH15BK-HN-P-E-M4 the Right Guide?
Before ordering, read the pairing letter off the old block or the rail end; rails and carriages must share the same code, here E, or heights, grade and running feel will not line up. If the rail shows scoring, rust or flat spots, replace the whole assembly instead of the block. Space very tight and duty light? The LRM family runs smaller still - its load ratings are not published, so ask us to confirm them against your cycle. Travel short and crossed-roller stiffness the priority? Compare LGC. Moment-heavy loads point upward: LSH20 lifts MR from 0.12 to 0.27 kN.m, more than double, in a single size step. Match list: carriage-only form, size by load and moment, square or flange style, standard or long length, accuracy grade, grease fitting, pairing code.
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 Block LSH15BK-HN-P-E-M4 FAQ
Ratings per block: C 11.3 kN dynamic, C0 17.9 kN static, and MR, MP, My each 0.12 kN.m. P grade keeps running parallelism inside 3-21 um, graded by rail length. Rail fixing is M4 screws at 412, 274 or 206 N.cm for steel, cast iron or aluminium. Lubricant: Mobilux EP2 or equivalent, 0.9 cm3 first fill, 0.3 cm3 at each service, due every 100 km of travel or each 3-6 month interval, whichever comes first.
No rail is included - this code is the carriage alone. The trailing letter E is the pairing code: your rail must carry the same code for heights, grade and preload to line up. Read it off the old block or the rail end before ordering; if it cannot be found, send us the old part number and we will identify 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 Block LSH15BK-HN-P-E-M4
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.