Airtac LSH Linear Guide Rail LSH25BK-F2N-H-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25BK-F2N-H-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 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 LSH25BK-F2N-H-E-M6
Lubrication is where this listing starts: the block leaves the factory with 3.6 cm3 of Mobilux EP2 or equivalent already inside its standard-length size 25 body. You are buying the carriage alone - no rail, which is ordered separately to pairing code E. Recirculating balls run in four rows of 45 degree X-shaped arc raceways with two contact points each, so push, lift and side forces all land on the same rating, and small seat errors are absorbed rather than felt as binding.
M6 nipple, high accuracy grade. Ratings per block: 26.9 kN dynamic, 39.4 kN static, moments 0.44 / 0.38 / 0.38 kN.m. The 100 km re-grease interval is shorter than the calendar suggests - a 300 mm stroke cycling once per second covers 100 km in roughly two weeks of continuous running, so plan the 1.1 cm3 top-ups by distance travelled, not by date. The catalogue also advises against side-mounted fittings on flange blocks, so confirm this nipple clears adjacent parts.
Airtac LSH Linear Guide Rail LSH25BK-F2N-H-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25BK-F2N-H-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, bottom mounting |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 26.9 kN per carriage |
|---|---|
| Basic static load rating C0 | 39.4 kN per carriage |
| Allowable static moment | MR 0.44 / MP 0.38 / My 0.38 kN·m |
| Accuracy grade | H — high 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-F2N-H-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. |
| 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 LSH25BK-F2N-H-E-M6 Is Used
Bottling line laneway guide
Bottle laneway guides on a filler shift thousands of cycles an hour; a freshly greased replacement block coded E keeps the 100 km top-up aligned with the line's maintenance round.
PCB router X-axis slide
A PCB depaneling router crosses its rail constantly at high speed, so the grease interval arrives quickly; keeping a spare pre-filled carriage coded E cuts the swap to minutes.
Workshop press feed slide
A small press feed fitted with 25 mm guides can be serviced by one technician: unclamp, slide the worn block off, slide this greased F2 replacement on.
Is the Airtac LSH Linear Guide Rail LSH25BK-F2N-H-E-M6 the Right Guide?
If your line already runs greased guides on a distance-based schedule, this block slots straight into the same routine. When the duty is moment-heavy, the long LSH25 carriage (MR 0.58 kN.m) or one size up will outperform simply adding blocks. For lighter, tighter envelopes look at LRM, confirming its unpublished ratings first; for short travel where crossed-roller rigidity matters more than long recirculating travel, choose LGC.
Order checklist: form = carriage only, size 25 checked against load and moment, F2 flange bolted from below, standard length, H grade, M6 lubrication port, pairing code E taken off the original rail. Base materials, weight and top speed are not published - we supply the datasheet figures with our quotation.
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-F2N-H-E-M6 FAQ
Dynamic rating 26.9 kN, static 39.4 kN, moments 0.44 kN.m MR, 0.38 kN.m MP and My. H-grade running parallelism band 7-28 um. M6 screws at 1370 / 921 / 686 N.cm for steel, cast iron and aluminium seats. Lubrication: 3.6 cm3 initial charge, 1.1 cm3 top-up, repeated every 100 km of travel or every 3 to 6 months.
A carriage, nothing else - there is no rail with this SKU. Rails and carriages of the same size carry matching pairing letters, so order code E to match the rail already in your machine. With model and letter matched, the block drops on and keeps its rated running quality; the letter is found on the rail end or its packaging.
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-F2N-H-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.