Airtac LSH Linear Guide Block LSH20BK-F2L-P-E-M6
The AirTAC LSH Linear Guide Block LSH20BK-F2L-P-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
- AccuracyP — precision 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 Block LSH20BK-F2L-P-E-M6
AirTAC LSH20BK-F2L-P-E-M6 is a single replacement carriage, not a guide set: one long F2 flange block that bolts from below, precision accuracy, pairing code E, M6 nipple. The rail is not part of the order. Match it to an LSH20 rail whose code ends in the same letter E, and the pair runs true, because any LSH carriage of one model fits any rail of that model with its smoothness and accuracy intact. Underneath it sits a 20 mm wide profile rail.
As a long block it rates 22.2 kN dynamic and 37.6 kN static per carriage, with allowable moments of 0.35, 0.34 and 0.34 kN.m about MR, MP and My. Static capacity runs roughly 1.7 times dynamic at this size - size travel life on C, not on the bigger C0 number. And since a carriage alone costs about a quarter of a complete set, swapping the block is usually the economic repair when the rail is still sound.
Airtac LSH Linear Guide Block LSH20BK-F2L-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH20BK-F2L-P-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, bottom 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 | P — precision 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 listed 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 Block LSH20BK-F2L-P-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. |
| P | P — precision 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 Block LSH20BK-F2L-P-E-M6 Is Used
Wafer handling stage upgrade
A semiconductor back-end tool gets its long F2 blocks replaced pair by pair with pairing-E carriages, holding precision-grade motion on the wafer transfer axis without re-lapping the rails.
Metrology lab slide rebuild
A gauge lab rebuilds a comparator slide around this precision long carriage, leaning on 22.2 kN dynamic and 0.35 kN.m MR to carry its overhung probe arm.
Dispensing head slide service
An SMT line keeps spare pairing-E blocks on the shelf so a glue-dispensing slide can be rebuilt the moment the old carriage starts to notch under load.
Is the Airtac LSH Linear Guide Block LSH20BK-F2L-P-E-M6 the Right Guide?
This block only makes sense against a rail, so check the pairing letter first: pairing E must appear on the LSH20 RLX rail you order or already own. Size the job on both C and the moment ratings - 22.2 kN and 0.35 kN.m MR for this long body - and step down to LRM if the duty is light and space is scarce, confirming ratings with us because LRM publishes none. Short travel with a demand for crossed-roller stiffness points across to LGC instead. Then close out the checklist: size 20 chosen on load and moment, F2 flange bolted from below, long carriage, precision accuracy, M6 fitting, and a 0.9 cm3 grease top-up at each 100 km service. If the rail shows scoring or corrosion as well, buy the complete set instead - a new block inherits the damage of a worn rail.
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 Block LSH20BK-F2L-P-E-M6 FAQ
Per carriage: dynamic C 22.2 kN, static C0 37.6 kN, moments MR/MP/My 0.35/0.34/0.34 kN.m. P-grade running parallelism covers 3 to 21 um across the rail length range. Rail screws are M5, torqued to 882 N.cm (steel), 588 N.cm (cast iron) or 441 N.cm (aluminium). First grease charge 2.7 cm3, top-up 0.9 cm3, repeated every 100 km of travel or every 3 to 6 months.
One long F2 bottom-flange carriage with M6 nipple - no rail, no end seals beyond the standard set, and no preload stated anywhere in the code. The pairing code E is the match key: it must be the same letter on the rail and the carriage. Any LSH20 carriage of this model runs on any LSH20 rail of this model with its accuracy preserved, so verify the letter and you are done.
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 Block LSH20BK-F2L-P-E-M6
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