Airtac LSH Linear Guide Rail LSH25BK-F1L-N-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25BK-F1L-N-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
- 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 LSH25BK-F1L-N-E-M6
The LSH25BK-F1L-N-E-M6 is one top-flange (F1) carriage, long version, for LSH25 rails with pairing code E. It is sold as a block only - the rail is a separate line item - so confirm code E on your existing rail before ordering. The long body puts the ball rows further apart, which is exactly what a cantilevered or off-centre load needs: the outer rows see less load for the same overhanging moment. The geometry is the standard AirTAC four-row design, balls at 45 degree in X-arranged arc raceways, self-aligning against slight mounting error. The rail it runs on is 23 mm wide.
Ratings per carriage: 32.9 kN basic dynamic, 53.0 kN basic static, and allowable static moments of MR 0.58, MP 0.57 and My 0.57 kN.m. At N accuracy, running parallelism falls in the 12-37 um band over the rail length range. For heavy overhang duty, stepping from the LSH25 standard body to this long body buys about 32 percent more MR - often the difference that keeps a fixture from tipping along the travel.
Airtac LSH Linear Guide Rail LSH25BK-F1L-N-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25BK-F1L-N-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 | N — normal 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-N-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. |
| 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 LSH25BK-F1L-N-E-M6 Is Used
PCB pick-and-place head rail
A placement head overhangs the guide on a cantilever arm. The long body's 0.58 kN.m MR rating and 32 percent moment gain over the standard block keep the head stable at the ends of travel.
Packaging-machine camera arm
A vision camera mounted off-axis on a packaging line needs stiffness against tipping. This carriage-only purchase, matched to pairing code E, upgrades the block without touching the line's rails.
Bottling-line diverter guide
A pusher that diverts bottles between lanes travels on a short LSH25 rail. The self-aligning four-row ball design tolerates the slight frame misalignment typical of washdown-area steelwork.
Is the Airtac LSH Linear Guide Rail LSH25BK-F1L-N-E-M6 the Right Guide?
Start from the load case, not the part number. For an overhanging camera, spindle or end effector, moment decides: the long F1 body here gives MR 0.58 kN.m, and one size up to LSH30 N raises it to 0.66 kN.m if you need more. A second block on the same rail instead addresses tipping along the direction of travel. For light duties in tight envelopes, LRM steps down - we confirm its unpublished ratings with the factory. If the stroke is short and the priority is crossed-roller rigidity, quote LGC.
Your checklist: carriage-only form (no rail supplied), size 25, F1 top flange, long body, pairing code E on both parts, accuracy N, M6 grease nipple, and the rail's own details - length up to 4040 mm for size 25, M6 mounting screws at 1370 N.cm into steel.
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-N-E-M6 FAQ
Design per carriage on the LSH25 long body: C 32.9 kN dynamic, C0 53.0 kN static, and moments MR 0.58 / MP 0.57 / My 0.57 kN.m. N-grade running parallelism lies between 12 and 37 um over the rail length band. Rails for size 25 use M6 bolts at 1370 N.cm (steel), 921 N.cm (cast iron) or 686 N.cm (aluminium). Grease is Mobilux EP2 or equal: 4.5 cm3 first fill, 1.4 cm3 per top-up, every 100 km or 3 to 6 months. Static sits about 1.6 times dynamic, so size travel life on C, never on C0.
Exactly one long top-flange carriage with an M6 nipple - no rail, no preload setting. The pairing letter E in this SKU must match the letter on your LSH25 rail; rails and carriages of different letters do not pair. Because AirTAC keeps LSH carriages interchangeable within the model, a correctly coded block will run on your existing rail with its original smoothness and accuracy preserved.
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-N-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.