Airtac LSH Linear Guide Block LSH20BK-F1N-P-E-M6
The AirTAC Airtac LSH Linear Guide Block LSH20BK-F1N-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 lengthStandard 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-F1N-P-E-M6
The LSH20BK-F1N-P-E is one top-flange carriage, standard body, precision grade, for an LSH rail of size 20 - true rail width 20 mm. The rail is a separate purchase; this code delivers the block and its ball circuit alone. Four rows of recirculating balls bear on opposed 45 degree arc grooves at a 45 degree contact angle, sharing radial, reversed-radial and lateral load and forgiving small errors in the mounting face.
Read the two ratings correctly: static C0 of 28.6 kN sits near 1.5 times the dynamic C of 18.6 kN, as across this series, but C is what governs travel life - size on 18.6 kN. Moments per carriage are MR 0.27, MP 0.25 and My 0.25 kN.m. The P-grade parallelism band is 3-21 um, and the M6 nipple arrives charged with Mobilux EP2.
Airtac LSH Linear Guide Block LSH20BK-F1N-P-E-M6 Technical Specifications
| Model | Airtac LSH Linear Guide Block LSH20BK-F1N-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, top 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 | 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 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 Block LSH20BK-F1N-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. |
| N | Standard 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-F1N-P-E-M6 Is Used
Jig-borer quill slide upgrade
Fitting a P-grade block to the quill slide of a toolroom jig borer, where the 3-21 um parallelism band supports accurate hole positions.
Die-bond head retrofit
A high-cycle semiconductor die bonder whose head carriage is renewed as a wearing part, running on the original rail without a rebuild.
Vision gantry service
Re-seating the carriage under a camera gantry on a print inspection line to remove the play that was causing banding in captured images.
Is the Airtac LSH Linear Guide Block LSH20BK-F1N-P-E-M6 the Right Guide?
Size on the dynamic rating C of 18.6 kN, not on the larger static C0 - C governs travel life; check C0 only against shock loads. If moment decides instead, take the L-length carriage (MR 0.35 kN.m) or step up to LSH25 on 23 mm rail. For light duty in a tight envelope, LRM is the leaner frame - its ratings are unpublished, so ask us to verify them. Short travel needing crossed-roller stiffness points to LGC. Before ordering, tick off: form (carriage only), size, flange orientation, carriage length, count and rail length, accuracy and the installation tolerance it demands, grease fitting, and pairing code E, which must match the 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-F1N-P-E-M6 FAQ
Use dynamic C of 18.6 kN for travel-life calculations - static C0 of 28.6 kN is near 1.5 times C and covers shock and standby loads only. Allowable moments are MR 0.27 / MP 0.25 / My 0.25 kN.m per carriage. This P-grade block holds a 3-21 um parallelism band. Mounting: M5 screws at 882 / 588 / 441 N.cm for steel, cast iron and aluminium. Grease 1.8 cm3 first, 0.6 cm3 top-ups, every 100 km or 3 to 6 months.
One top-flange carriage only - no rail, no set. The block is pre-filled with Mobilux EP2 and fitted for an M6 nipple. LSH carriages pair with LSH rails of the same model by letter: this one is E, so any rail you buy to run with it must also be E. If you are replacing a block on existing rail, copy the letter from the old part's code.
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-F1N-P-E-M6
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.