Airtac LSH Linear Guide Rail LSH25BK-F1L-P-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25BK-F1L-P-E-M6 is a standard-type profile linear guide on a 23 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
- SizeLSH25
- Rail width23 mm
- Carriage lengthLong 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 LSH25BK-F1L-P-E-M6
The LSH25BK-F1L-P-E-M6 code is a block-only purchase: one precision-grade, long-body, top-flange carriage with pairing letter E, and explicitly no rail. Flange mounting (F1) puts the fixing holes on a raised top flange, so the carriage bolts down from above and the machine plate needs no machined pocket. The four-row, 45 degree X-raceway ball circuit is self-aligning - it tolerates the slight flatness errors a machined plate leaves behind, though only within the catalogue allowable values for this size, not without limit. Remember that an LSH25 rail measures 23 mm wide, not 25, when you lay out or inspect the mating surface.
Precision grade holds the running parallelism band to 3-21 um depending on rail length, tighter than the 12-37 um of normal grade, which matters on an inspection axis or a slow, positive-location slide. Ratings per long carriage: 32.9 kN dynamic, 53.0 kN static, moments 0.58 / 0.57 / 0.57 kN.m. One manufacturer caution that fits this exact configuration: side-mounted grease nipples are not recommended on flange carriages because the fitting can foul adjacent parts - check the clearance around the M6 nipple before you finalise the layout.
Airtac LSH Linear Guide Rail LSH25BK-F1L-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25BK-F1L-P-E-M6 |
|---|---|
| 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 | LSH25 |
| Rail width | 23 mm (the size code is not the rail width above size 20) |
| Carriage style | Flange, top mounting |
| Carriage length | Long carriage |
| Basic dynamic load rating C | 32.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 53.0 kN per carriage |
| Allowable static moment | MR 0.58 / MP 0.57 / My 0.57 kN·m |
| Accuracy grade | P — precision grade |
| Mounting screws | M6 — 1370 N·cm into steel, 921 cast iron, 686 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 LSH25BK-F1L-P-E-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| BK | Carriage / block only — no rail supplied. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| L | Long 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 LSH25BK-F1L-P-E-M6 Is Used
Granite inspection plate traverse
A laser-interferometer carriage traversing a granite surface plate exploits the P grade's 3-21 um running parallelism band, with the long body damping pitch and yaw of the sensor head.
Optics-bench alignment slide
An optics-bench alignment slide carrying an offset camera bracket stays flat on this long flange block; the 0.58 kN.m MR moment rating is what stops the overhang from tipping the stage.
High-cycle press feed
A toggle-press material feed running continuously covers distance fast - a 300 mm stroke cycling once a second reaches 100 km in about two weeks - so plan the 1.4 cm3 grease top-up into the maintenance calendar rather than trusting the calendar alone.
Is the Airtac LSH Linear Guide Rail LSH25BK-F1L-P-E-M6 the Right Guide?
If your duty is light and the envelope small, LRM is the compact alternative - its load ratings are not published, so let us confirm them against your load before you switch. If the stroke is short and the job wants crossed-roller stiffness more than long recirculating travel, LGC is the cross-over series. If the 0.58 kN.m MR of this block is the binding figure, one size up to LSH30 moves MR to 0.66 kN.m without changing anything else on the machine. Order checklist: carriage-only form; size judged on load and moment; F1 top flange, long body; accuracy P; M6 nipple with the flange-fouling check done; pairing E to match the rail; and, when replacing a block, the letter read off the old part.
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 LSH25BK-F1L-P-E-M6 FAQ
Dynamic C 32.9 kN, static C0 53.0 kN, allowable static moments MR 0.58, MP 0.57, My 0.57 kN.m. Running parallelism 3-21 um across the P grade's rail-length range. The mating rail takes M6 screws at 1370 / 921 / 686 N.cm on steel, cast iron and aluminium. Grease 4.5 cm3 initial charge, 1.4 cm3 service top-up, interval 100 km of travel or 3-6 months, Mobilux EP2 or equivalent.
One F1 top-flange, long-body carriage, precision grade, pairing E, pre-filled with Mobilux EP2. No rail is supplied. The E must appear in the code of the LSH25 rail you bolt it to - rail and carriage share the pairing letter or they are not a matched pair. If you cannot read the letter off the old carriage or the original order code, send us the full code and we will identify it for you.
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 LSH25BK-F1L-P-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.