Airtac LSH Linear Guide Rail LSH20BK-F2N-N-E-M6
The AirTAC Airtac LSH Linear Guide Rail LSH20BK-F2N-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 lengthStandard 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-F2N-N-E-M6
You are ordering one AirTAC LSH20 block - the carriage alone, bottom-flange F2 style, standard length, normal accuracy, pairing code E, fitted with an M6 grease nipple. The rail is NOT part of this SKU. Four rows of balls circulate through arc raceways angled at 45 degrees in an X pattern, giving two-point contact per ball, equal capacity in all four load directions and enough self-alignment to forgive minor machining error in the mounting face.
The catalogue lists 18.6 kN dynamic and 28.6 kN static per standard-length block - the static figure runs about one and a half times the dynamic one across the LSH range, which matters because buyers sometimes size on the bigger number. Dynamic C governs travel life; static C0 matters for shock loads and long dwells under load. Moments are 0.27 kN.m MR and 0.25 kN.m MP and My. Bolting from below through the F2 flange keeps the carriage top face unobstructed.
Airtac LSH Linear Guide Rail LSH20BK-F2N-N-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH20BK-F2N-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, bottom mounting |
| Carriage length | Standard carriage |
| Basic dynamic load rating C | 18.6 kN per carriage |
|---|---|
| Basic static load rating C0 | 28.6 kN per carriage |
| Allowable static moment | MR 0.27 / MP 0.25 / My 0.25 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-F2N-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. |
| N | Standard 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-F2N-N-E-M6 Is Used
Bottling line index slide
A bottling plant replacing worn carriages on the bottle-routing slide of a filler infeed keeps the line moving; the E-coded block swaps onto the existing E rail without touching rail alignment.
Packaging conveyor guide retrofit
Side-guide assemblies on packaging conveyors cycle constantly and wear first at the carriages; this bottom-flange block bolts up from below, so the product rail on top stays unobstructed.
Custom weld fixture fabrication
A jobbing shop building welding fixtures can fix these F2 carriages from underneath, keeping the carriage top face flat and clear for clamps, stops and location blocks.
Is the Airtac LSH Linear Guide Rail LSH20BK-F2N-N-E-M6 the Right Guide?
Start by deciding the form you need: a complete set, or this block on its own. For light duty in a small envelope, LRM is the step down - its load ratings are not published, so confirm them with us before specifying. If moment governs the application, either move up to LSH25 standard (MR 0.44 kN.m, roughly 63 percent more) or take this size in the long body, which raises MR to 0.35 kN.m - about 30 percent - while lifting dynamic rating only around 19 percent. For short-travel work needing crossed-roller stiffness rather than long recirculating travel, compare LGC. Tick the list before ordering: form, size checked against load and moment together, carriage style and length, block count and rail length, accuracy and preload grades (preload applies to sets only, and a tighter grade shrinks the mounting error you may allow), grease fitting, and the pairing letter E on both halves.
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-F2N-N-E-M6 FAQ
C 18.6 kN dynamic; C0 28.6 kN static; MR 0.27, MP 0.25, My 0.25 kN.m. Normal grade running parallelism sits in the 12-37 um band, with the final figure set by the rail length it is paired to. Fix the rail with M5 screws torqued to 882 / 588 / 441 N.cm on steel / cast iron / aluminium. Grease volume: 1.8 cm3 at first fill and 0.6 cm3 per top-up, repeated every 100 km of travel or 3 to 6 months, whichever comes first.
One bottom-flange carriage, nothing else - there is no rail in the box and this is not a matched set. The E code is AirTAC's match mark: carriages and rails of the same model assemble correctly only when both carry the same letter, which preserves the designed preload, accuracy and running feel. Check the letter on the rail or the block you are replacing before ordering.
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 LSH20BK-F2N-N-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.