Airtac LGC Series Cross Roller Guide Rail LGC1R11
The AirTAC Airtac LGC Series Cross Roller Guide Rail LGC1R11 is a crossed roller guide using Ø1.5 mm precision rollers. Rollers are held in a cage in alternating orientation between hardened V-raceways, giving line contact instead of point contact — much higher rigidity and accuracy than a ball guide of similar size. It does NOT recirculate, so travel is set by rail length and the cage travels about half the stroke.
- SeriesLGC
- Supplied asRoller cage assembly (spare part)
- SizeLGC1
- Roller diameterØ1.5 mm
- Rollers in cage11
- 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 LGC Series Cross Roller Guide Rail LGC1R11
LGC1R11 is the roller cage subassembly for AirTAC size 1 crossed roller guides: eleven 1.5 mm precision rollers set in alternating crossed orientations inside a cage, giving line contact against hardened V-raceways. In a fitted guide these rollers do not recirculate, so travel is fixed by rail length rather than being unlimited. Be clear on the form: this part is not a rail and not a complete guide, and no rail is supplied with it.
Size 1 rollers carry 125 N per roller dynamic and 120 N per roller static, figures the catalogue states per roller, so the capacity of an assembled guide grows with roller count rather than being published as a total. With eleven rollers in this cage, every contact point counts. Two things to plan for: the cage travels with the slide by about half the stroke, and final accuracy comes from the dial-indicator adjustment performed on the machine, not from the cage alone.
Airtac LGC Series Cross Roller Guide Rail LGC1R11 Technical Specifications
| Model | Airtac LGC Series Cross Roller Guide Rail LGC1R11 |
|---|---|
| Series | LGC Series Crossed Roller Guide |
| Supplied as | Roller cage assembly (spare part) |
| Construction | Crossed precision rollers in a cage, NON-recirculating, line contact |
| Size code | LGC1 |
| Roller diameter | Ø1.5 mm |
| Rollers per cage | 11 |
| Rail material | Stainless steel |
| Travel | Limited by rail length — the cage travels about half the stroke |
| Basic dynamic load rating C | 125 N per roller |
|---|---|
| Basic static load rating C0 | 120 N per roller |
| Mounting screws | Per catalogue tightening-torque table |
| Lubrication | Per catalogue; adjust clearance and preload before use |
| Interchangeability | LGC carriages fit LGC rails of the same model, matched by the pairing code |
Specifications follow the official AirTAC LGC catalogue. Load ratings are stated PER ROLLER, not per guide — total capacity depends on how many rollers the cage carries, which is why the roller count is part of the order code. Maximum stroke and tightening torques are given in the catalogue tables; ask us for the figure for your size. This item is a roller cage only — neither a rail nor a complete guide.
Model Code: Airtac LGC Series Cross Roller Guide Rail LGC1R11
| LGC | LGC Series Crossed Roller Guide. |
|---|---|
| 1 | Size code — sets the roller diameter (Ø1.5 mm). |
| R11 | Cage carrying 11 rollers. |
| -H / -P | Accuracy grade: H high, P precision. |
What Is In The Box
| This order | Roller cage assembly (spare part) |
|---|---|
| Rail | No — not supplied with this item |
| Rollers and cage | Yes, 11 rollers |
This is the cage-and-rollers subassembly sold as a spare. It is NOT a rail and NOT a complete guide. 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 LGC Series Cross Roller Guide Rail LGC1R11 Is Used
PCB drilling machine overhaul
When a PCB drilling machine's spindle slide loses smoothness after years of short-stroke duty, a worn or damaged size 1 cage is a likely cause. LGC1R11 renews the eleven-roller moving element of the existing set without touching the rails, after which preload is readjusted in place.
Optical test instrument service
Optical test instruments depend on short, rigid, repeatable slides. If a size 1 guide stage starts to stick or its cage wanders, fitting a fresh eleven-roller cage and recentring it with several full strokes brings the travel back to spec.
Measuring stage repair bench
A teardown of a crossed roller guide on the repair bench needs two things: a dial indicator and the correct spare cage. LGC1R11 suits size 1 sets specced with an eleven-roller cage, and the bench technician readjusts clearance before returning the stage to service.
Is the Airtac LGC Series Cross Roller Guide Rail LGC1R11 the Right Guide?
First confirm the form: LGC1R11 is a spare cage, ordered when an existing size 1 guide needs its moving element renewed, while a full guide is ordered with a row letter and a rail length. Match the size by roller diameter and count together - 1.5 mm rollers, eleven of them here - because accuracy is controlled as a matched set and the manufacturer forbids mixing parts between sets. If you are designing from scratch instead, choose the row arrangement (A three-row or B four-row), take the rail length from the manufacturer's maximum-stroke table with the working stroke set slightly shorter, and pick accuracy grade H (the standard stocked grade) or P to order. Plan the dial-indicator adjustment and the clearance method - adjusting screws for ordinary clearance, a pressure plate for higher rigidity, a taper block for the highest - into the build time. For travel beyond roughly half a metre, or where a sealed bolt-on recirculating unit is preferred, step across to LSH; for light duty in a small envelope, step down to LRM.
Quick checklist
- ✓ Complete set, carriage only, or rail only?
- ✓ Worst-case moment, not just straight load
- ✓ Travel length and mounting space
- ✓ Stroke shorter than the rail allows for cage travel
- ✓ Clearance method: screws, plate or taper block
- ✓ 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 Centre the roller cage on the rail during assembly.
- check Adjust with a dial indicator over the full stroke.
- check Never mix rails from different sets — accuracy is matched per set.
- check Installation by qualified personnel per AirTAC docs.
Airtac LGC Series Cross Roller Guide Rail LGC1R11 FAQ
This cage is size 1, carrying eleven rollers of 1.5 mm diameter. The catalogue rates size 1 rollers at 125 N per roller dynamic and 120 N per roller static - both stated per roller, never as a total for the cage. Rail length, row arrangement and accuracy grade are not properties of a cage code; they belong to the complete guide order. The capacity of the fitted guide scales with roller count, but no combined per-guide figure is published, so send us your load case for sizing.
No. It is the roller cage subassembly only - no rail is supplied, and it is neither a rail-only item nor a complete guide. AirTAC sells cages separately because the cage is the inexpensive, replaceable element in a crossed roller guide. If a cage merely drifts, running the slide through several full strokes brings it back near centre; if it is damaged, it can be swapped for this spare without replacing the rails.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LGC Series Cross Roller Guide Rail LGC1R11
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