Airtac LSH Linear Guide Rail LSH25BK-HL-N-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH25BK-HL-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-HL-N-E-M6
Sold as a single part: this AirTAC code delivers one LSH25 long square block, N grade, with an M6 lubrication nipple, and it does not include a rail - RLX codes are the rails, BK codes are the blocks, and this is a BK. The running gear is four rows of recirculating balls riding arc raceways cut at plus and minus 45 degrees in an X crossing, each ball pressing on two points, which equalises the rating in every direction and lets slight errors in the mounting face be taken up inside the carriage. It pairs with LSH25 profile rail, genuinely 23 mm wide.
Static capacity deserves the first look when the load dwells or lands hard: C0 here is 53.0 kN, about 1.6 times the 32.9 kN dynamic figure, and the long body raises it 34 percent over the standard carriage's 39.4 kN. A press fit, an emergency stop under load or a parked vertical axis all load the raceway statically, and that is the number that prevents brinelling. Dynamic C and the moment set (MR 0.58, MP 0.57, My 0.57 kN.m) follow; the block mates with rail bearing pairing code E.
Airtac LSH Linear Guide Rail LSH25BK-HL-N-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH25BK-HL-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 | Square (compact) |
| 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-HL-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-HL-N-E-M6 Is Used
Laser cutting head vertical slide
A flying-optics laser head hangs from its carriage and stops abruptly at each corner of the nest. The static margin of the long LSH25 body absorbs those repeated stops without raceway damage.
Modular fixture column build
Bolt-together fixture columns for machine building use blocks loaded in pure vertical park while operators index the part. High static rating matters more than travel rating in that duty.
Custom XY inspection table
A one-off XY staging table for camera-based inspection is built around two rails and four of these E-coded blocks, chosen for the long body's moment headroom under an off-centre camera plate.
Is the Airtac LSH Linear Guide Rail LSH25BK-HL-N-E-M6 the Right Guide?
If the duty involves dwell under load, impact on indexing or a held vertical position, verify C0 53.0 kN against your worst static case before looking at anything else - dynamic rating governs travel life, static rating governs survival. For overhung loads, compare the long body's 0.58 kN.m MR with a standard LSH25's 0.44 kN.m, and step to a long LSH30 at 0.88 kN.m if one size is simpler than two carriages. Light-duty compact builds may drop to LRM, whose ratings we confirm from the maker since none are published; short travel with high stiffness points to LGC.
Checklist: carriage only - no rail supplied, size 25, square long block, N accuracy, M6 nipple, and the E pairing letter matching your rail exactly.
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-HL-N-E-M6 FAQ
Catalogue values for the LSH25 long carriage: dynamic C 32.9 kN; static C0 53.0 kN; moments MR 0.58, MP 0.57, My 0.57 kN.m. Grade N running parallelism spans 12-37 um depending on rail length. Rail fixing: M6 screws, 1370 N.cm steel, 921 N.cm cast iron, 686 N.cm aluminium. Lubrication is Mobilux EP2 or equivalent, 4.5 cm3 to fill, 1.4 cm3 to top up, repeated each 100 km of travel or each 3-6 months, whichever comes sooner.
It is not. You receive one long square carriage only; the rail is a separate RLX-coded purchase. Matching is done by the pairing letter - E on this block, E required on the rail - and rails and carriages of the same LSH model with the same letter are interchangeable among themselves. Never assume a fit with another maker's rail; the geometry and codes are AirTAC's own. If your machine plate lists a full set code such as LSH25HL2X600, replace the rail segment with BK to derive the carriage, or send us the code and we will convert 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-HL-N-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.