Airtac LSH Linear Guide Rail LSH20BK-F1L-N-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20BK-F1L-N-E-M6 is a standard-type profile linear guide on a 20 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
- SizeLSH20
- Rail width20 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 LSH20BK-F1L-N-E-M6
This is a replacement carriage, not a guide. The box holds a single long F1 top-flange block for the LSH20 series at normal (N) accuracy, with an M6 fitting on the side and the pairing letter E in the code, which must match the letter on your rail. Inside, four rows of balls circulate through X-pattern arc grooves machined at 45 degrees, so the block reacts loads from all four directions about equally and self-aligns against minor surface error. The LSH20 rail it rides on is 20 mm wide.
AirTAC fills each new block with Mobilux EP2 before it leaves the factory - 2.7 cm3 for this long carriage, with 0.9 cm3 per top-up. Re-grease every 100 km of travel or every 3 to 6 months, whichever comes first; a 300 mm stroke cycling once per second burns through 100 km in roughly two weeks, so distance usually binds before the calendar. Ratings per block: 22.2 kN dynamic, 37.6 kN static, moments 0.35 kN.m MR and 0.34 kN.m MP and My.
Airtac LSH Linear Guide Rail LSH20BK-F1L-N-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20BK-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 | LSH20 |
| Rail width | 20 mm |
| Carriage style | Flange, top mounting |
| Carriage length | Long carriage |
| Basic dynamic load rating C | 22.2 kN per carriage |
|---|---|
| Basic static load rating C0 | 37.6 kN per carriage |
| Allowable static moment | MR 0.35 / MP 0.34 / My 0.34 kN·m |
| Accuracy grade | N — normal grade |
| Mounting screws | M5 — 882 N·cm into steel, 588 cast iron, 441 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 LSH20BK-F1L-N-E-M6
| LSH | LSH Series Linear Guide. |
|---|---|
| 20 | 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. |
| 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 LSH20BK-F1L-N-E-M6 Is Used
Snack packing picker
A pick-and-place head on a snack-food packing line cycles almost without pause, so its grease interval arrives in days rather than months; this factory-filled long block with a reachable M6 fitting makes topping up on schedule realistic.
Sorter trolley rail
Warehouse sorter trolleys run on guide rails that are built into the structure and awkward to lift, so replacing the carriages in kind - pairing letter E matched to letter E - keeps the trolley fleet rolling without touching the rail.
Tool magazine slide
A CNC tool changer's magazine slides in and out thousands of times per shift; keeping one spare long carriage in the same pairing letter turns a breakdown into a half-hour swap on the machine.
Is the Airtac LSH Linear Guide Rail LSH20BK-F1L-N-E-M6 the Right Guide?
Plan the lubrication schedule before the purchase, not after. Grease (Mobilux EP2, or an equivalent) suits speeds up to 60 m/min where no cooling effect is needed, and the 100 km interval arrives fast on busy machinery: a 300 mm stroke cycling once a second covers it in about a fortnight. Two mounting cautions from AirTAC apply here: side nipples are not recommended on flange carriages because the fitting can foul the block, and a tube fitting on the side may sit flush with or above the top face, so clear that space on your machine first. If the duty is lighter and tighter, LRM steps down - its load ratings are unpublished, so we confirm them - and LGC steps across for short travel needing crossed-roller stiffness.
Checklist: carriage only, no rail in the box; pairing letter E must match your rail; long F1 top-flange body, accuracy N, M6 fitting from the right family for size 20; and check the rail for wear before fitting, since the new block inherits whatever geometry the rail has left.
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 LSH20BK-F1L-N-E-M6 FAQ
Ratings per carriage: C 22.2 kN dynamic, C0 37.6 kN static, moments MR 0.35, MP 0.34, My 0.34 kN.m. Accuracy N gives a 12-37 um running-parallelism band over the rail length. Fix the rail with M5 screws at 882 N.cm in steel, 588 in cast iron, 441 in aluminium. Lubrication: the long body takes 2.7 cm3 on first fill and 0.9 cm3 per top-up of Mobilux EP2 or equivalent, on a 100 km or 3-to-6-month cycle, whichever comes first.
In the box: one long top-flange carriage with M6 fitting. Nothing else - no rail. Any LSH20 rail stamped E pairs with this block; a D or C rail will not, because the letter ties carriages to rails of the same model and both parts must share it. If you cannot read the letter, send us the full code off the old carriage or the rail and we will identify it.
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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 LSH20BK-F1L-N-E-M6
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