
The AirTAC Airtac LSH Linear Guide Rail LSH25F1N1X160S20AN-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.
Complete and ready to mount, this is one AirTAC LSH25 top-flange carriage on a 160 mm profile rail with a 20 mm end-hole offset, ordered under code LSH25F1N1X160S20AN-M6. Size 25 runs on a rail 23 mm wide, not 25, so confirm the mating slot spacing before you machine. Inside the carriage, four rows of recirculating balls sit in X-arranged arc raceways cut at a 45 degree contact angle: loading is equal up, down and sideways, and slight mounting-surface error is taken up inside the block rather than showing up as bind.
Ratings for this standard-length carriage are 26.9 kN dynamic (C) and 39.4 kN static (C0), with moments of MR 0.44, MP 0.38 and My 0.38 kN.m. C0 sits roughly 1.5 times above C, which is why you size travel life on C and treat the static figure as your shock reserve. This set is grade A (no preload) and grade N (normal accuracy), the most forgiving combination to install, and the carriage comes pre-filled with Mobilux EP2 through an M6 fitting.
| Model | Airtac LSH Linear Guide Rail LSH25F1N1X160S20AN-M6 |
|---|---|
| Series | LSH Series Linear Guide |
| Supplied as | Complete guide set |
| 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 | Standard carriage |
| Carriages supplied | 1 |
| Rail length | 160 mm |
| 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 | N — normal grade |
| Preload grade | A — no preload |
| 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 |
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.
| LSH | LSH Series Linear Guide. |
|---|---|
| 25 | Size code — note the rail is 23 mm wide, not 25 mm. |
| H / F1 / F2 / F3 | Carriage style: square, or flange mounted from the top, bottom, or both. |
| N | Standard carriage. |
| 1X160 | 1 carriage on a 160 mm rail. |
| S… | End-hole offset from the rail end, in mm. |
| A | A — no preload — higher preload raises rigidity and tightens how flat the mounting surface must be. |
| N | N — normal grade. |
| -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. |
| This order | Complete guide set |
|---|---|
| Rail | Yes, 160 mm |
| Carriage | Yes, 1 |
Rail and carriage(s) supplied together, matched as a set. 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.
A 160 mm stroke suits a benchtop pick-and-place shifting connector housings from a vibratory feeder to a test nest, with the gripper plate bolted down through the F1 top flange.
On a small router machining hardwood or aluminium, the 23 mm rail and 26.9 kN dynamic rating carry the cutting thrust of small end mills along this 160 mm axis.
A metering valve mounted on this carriage traces a 160 mm bead over electronics housings; the top flange lets the valve bracket bolt straight down without adapters.
Step down to the LRM series if your duty is light and the envelope is tight - LRM load ratings are not published, so we will confirm them against your duty before quoting. Step up to LSH30, or to the long LSH25 carriage, when the moment figure rather than C decides; step across to LGC when travel is short and you want crossed-roller stiffness instead of long recirculating travel. Before ordering, tick off: complete set, carriage or rail; size chosen on load AND moment; carriage style and length; carriage count and rail length; accuracy grade and preload, weighed against the installation tolerance you can actually hold; grease fitting; and the pairing code if you are replacing one part of an existing guide.
Quick checklist
Per carriage: dynamic rating C 26.9 kN, static C0 39.4 kN, moments MR 0.44 / MP 0.38 / My 0.38 kN.m. Normal accuracy runs a parallelism band of 12-37 um. Mount the rail with M6 screws torqued to 1370 N.cm in steel, 921 in cast iron or 686 in aluminium. The carriage is charged with 3.6 cm3 of Mobilux EP2; top up 1.1 cm3 every 100 km of travel or every 3 to 6 months.
This SKU is a complete set: a 160 mm rail plus one F1 top-flange carriage already fitted, with bolt caps for the rail screw holes. Carriages are interchangeable within the same LSH25 model - a spare block will keep its smoothness, preload and accuracy on this rail. If you later order a carriage only, you will need the pairing code; on flange carriages, side grease nipples are not recommended because the fitting can foul the block.
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Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.