Airtac LSH Linear Guide Rail LSH15BK-F2N-N-C-M4
The AirTAC Airtac LSH Linear Guide Rail LSH15BK-F2N-N-C-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
- 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 LSH15BK-F2N-N-C-M4
This is a carriage-only sale: one AirTAC LSH15 F2 flange block, standard length, normal grade, M4 fitting, pairing code C. There is no rail in the box, so it is a part for someone who already has a sound 15 mm wide LSH15 profile rail and needs to bolt a new carriage onto it from underneath. The ball circuit has four rows at 45 degree contact angles, two contact points per ball, which keeps the block running smoothly even when the mounting face is not perfect.
Rated 11.3 kN dynamic and 17.9 kN static per carriage, with 0.12 kN.m moment capacity in all three directions. Because F2 mounts through its base flange, the carriage top face stays completely clear - useful under a worktable or wherever the deck above must remain unobstructed. Order the pairing letter that matches your rail: here that is C.
Airtac LSH Linear Guide Rail LSH15BK-F2N-N-C-M4 Technical Specifications
| Model | Airtac LSH Linear Guide Rail LSH15BK-F2N-N-C-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, bottom 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 | N — normal 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-F2N-N-C-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. |
| 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 LSH15BK-F2N-N-C-M4 Is Used
Benchtop CNC router Z-axis retrofit
A light-production CNC router rebuild benefits from bottom-flange mounting: the F2 bolts up under the Z plate and leaves the top face clear for the spindle clamp.
Autosampler XY stage rebuild
Liquid-handler autosamplers run millions of short cycles. This code-C block pairs with the lab's existing 15 mm LSH15 rail, and normal grade suits the accuracy class typical of such stages.
Pallet-clamping fixture slide
On a machining fixture, a sliding clamp arm can hang off a bottom-mounted flange carriage with nothing above it, since F2 needs no bolt access through the top face.
Is the Airtac LSH Linear Guide Rail LSH15BK-F2N-N-C-M4 the Right Guide?
Match the part to the machine, then the machine to the numbers. This F2 block suits a build where the top deck must stay clear, because everything bolts through the base flange. Check the duty against 11.3 kN dynamic and 0.12 kN.m moment; a cantilevered load is usually limited by the moment figure, and if so a longer block is the fix - on LSH20, choosing the long carriage raises MR about 30 percent while the dynamic rating rises only 19, so the long block is often the cheaper way to buy moment. Light-duty small-envelope jobs may suit LRM instead, whose ratings we confirm on request; short-travel stiff applications may suit LGC. Checklist for this SKU: carriage only, no rail supplied, size 15, F2, standard length, accuracy N, grease M4, pairing code C - the rail it mounts on must also be code C.
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-F2N-N-C-M4 FAQ
C 11.3 kN dynamic and C0 17.9 kN static per carriage; moment allowances MR 0.12, MP 0.12 and My 0.12 kN.m; normal-grade running parallelism 12-37 um across the rail-length range. Rail mounting: M4 socket screws at 412 N.cm steel, 274 N.cm cast iron, 206 N.cm aluminium, with the shoulder corner radius kept at or under 0.5 mm. Lubrication: Mobilux EP2, 0.9 cm3 charge, 0.3 cm3 top-up, every 100 km or 3 to 6 months.
One carriage only: LSH15 F2 bottom-flange block, standard length, normal accuracy, M4 fitting, pairing code C. No rail is included and none is described by this code. The letter C is the match key - your existing rail's code must also read C. Check too that the fitting is accessible: on flange blocks a side-mounted nipple or tube fitting can foul the carriage body, so plan the routing before mounting.
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 LSH15BK-F2N-N-C-M4
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.