Airtac LSH Linear Guide Rail LSH15BK-F1N-H-E-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-F1N-H-E-M4 is a standard-type profile linear guide on a 15 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
- SizeLSH15
- Rail width15 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 LSH15BK-F1N-H-E-M4
When a whole guide still has life in the rail but the block has scored or seized, this is the part you need. LSH15BK-F1N-H-E-M4 is a size 15 top-flange carriage, standard length, high accuracy, sold as a single block with no rail; the codes for rails and blocks in this family each end in a pairing letter, and this one carries E. Four rows of balls recirculate through X-shaped arc raceways at 45 degrees, two contact points per ball, giving equal capacity in every direction plus enough built-in self-alignment to forgive slight mounting error without binding.
Economics first: a carriage on its own typically runs about a quarter of the price of a complete set, so replacing the block is usually the economic repair provided the rail is straight, clean and unworn. The block itself is rated 11.3 kN dynamic and 17.9 kN static per carriage, with 0.12 kN.m moment capacity in each of the MR, MP and My directions. Fit it, note the M4 grease point comes pre-filled, and check that any side-mounted fitting cannot foul the flange body before final mounting.
Airtac LSH Linear Guide Rail LSH15BK-F1N-H-E-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-F1N-H-E-M4 |
|---|---|
| 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 | LSH15 |
| Rail width | 15 mm |
| Carriage style | Flange, top mounting |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 11.3 kN per carriage |
|---|---|
| Basic static load rating C0 | 17.9 kN per carriage |
| Allowable static moment | MR 0.12 / MP 0.12 / My 0.12 kN·m |
| Accuracy grade | H — high grade |
| Mounting screws | M4 — 412 N·cm into steel, 274 cast iron, 206 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 LSH15BK-F1N-H-E-M4
| LSH | LSH Series Linear Guide. |
|---|---|
| 15 | Size code. |
| 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 LSH15BK-F1N-H-E-M4 Is Used
Laser cutter rail refresh
An older CO2 laser cutter's X carriage scores its rail track; if the rail still runs true, this code E block is the whole repair, otherwise plan a complete set instead.
Pallet lift guide arm
A pallet-transfer unit's guide arm runs on a 15 mm rail through repeated static dwells; the 17.9 kN static rating per carriage covers the dwell, and the block can be exchanged on its own.
Guard-door slide on a press
A press guard door glides on a profile rail exposed to swarf and coolant; replacing just the pairing E carriage returns the door's smooth action while the rail stays in place.
Is the Airtac LSH Linear Guide Rail LSH15BK-F1N-H-E-M4 the Right Guide?
Start from the repair question, then check the sizing. If the rail is sound, a code E carriage is the cheap fix; if the rail is scored or bent, replace the set. Downsizing to LRM suits light duties and small envelopes, but its ratings are unpublished, so we must confirm them first. If the load overhangs, moment decides: LSH20 lifts MR from 0.12 to 0.27 kN.m in one step, more than any number of extra blocks will do against tipping. Where travel is short and crossed-roller rigidity matters more than long recirculating travel, look at LGC. Checklist: carriage form only, size 15 by load and moment, F1 top flange, standard length, accuracy grade H, M4 fitting, and pairing code E matched to the rail's letter.
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 LSH15BK-F1N-H-E-M4 FAQ
Per carriage: C 11.3 kN dynamic, C0 17.9 kN static, moment limits MR 0.12, MP 0.12 and My 0.12 kN.m. H grade accuracy corresponds to 7-28 um running parallelism across its rail length band. Mounting hardware on the rail: M4 screws, 412 N.cm into steel, 274 into cast iron, 206 into aluminium; shoulders H 3.5, H1 3 and H2 4 mm, abutment radius 0.5 mm or less. Grease: Mobilux EP2, 0.9 cm3 first charge, 0.3 cm3 top-ups, every 100 km of travel or 3 to 6 months.
Often yes, and that is what this SKU is for: one top-flange carriage, no rail supplied. A carriage normally costs about a quarter of a complete set, so if the rail still runs straight and smooth this is the economical repair. The constraint is the pairing letter: this block is marked E and will only deliver its rated smoothness on an LSH15 rail also marked E, so read the code off the old part before ordering. Preload is not selectable on this carriage-only code shape.
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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 LSH15BK-F1N-H-E-M4
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