Airtac LGC Series Cross Roller Guide Rail LGC2R13
The AirTAC Airtac LGC Series Cross Roller Guide Rail LGC2R13 is a crossed roller guide using Ø2.0 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)
- SizeLGC2
- Roller diameterØ2.0 mm
- Rollers in cage13
- 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 LGC2R13
The LGC2R13 is a replacement roller cage for AirTAC LGC size 2 crossed roller guides. It holds 13 hardened cylindrical rollers of 2.0 mm diameter in alternating crossed orientation, the arrangement that gives line contact against the hardened V-raceways instead of the point contact of a ball. This code is the cage-and-roller subassembly only: no rail is supplied, it is not a rail and it is not a complete guide. Because the rollers in an LGC guide never recirculate, the travel of the parent guide is set by its rail length, not by this part.
Each roller in this cage carries a rating of 292 N dynamic and 290 N static, per roller. Note that here the static figure sits slightly below the dynamic one, the reverse of a ball guide, so check C0 as well when sizing. With 13 rollers the load is shared over 13 contact points, though a per-guide total is not published; ask us if you need help sizing. A practical plus: if a fitted cage has drifted, running the slide through several full strokes usually brings it back near centre.
Airtac LGC Series Cross Roller Guide Rail LGC2R13 Technical Specifications
| Model | Airtac LGC Series Cross Roller Guide Rail LGC2R13 |
|---|---|
| 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 | LGC2 |
| Roller diameter | Ø2.0 mm |
| Rollers per cage | 13 |
| Rail material | Stainless steel |
| Travel | Limited by rail length — the cage travels about half the stroke |
| Basic dynamic load rating C | 292 N per roller |
|---|---|
| Basic static load rating C0 | 290 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 LGC2R13
| LGC | LGC Series Crossed Roller Guide. |
|---|---|
| 2 | Size code — sets the roller diameter (Ø2.0 mm). |
| R13 | Cage carrying 13 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, 13 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 LGC2R13 Is Used
PCB drilling machine slide service
A worn or drifted roller cage in the drilling head slide of a PCB drilling machine can be swapped for an LGC2R13 during scheduled service, restoring the crossed-roller line contact the spindle slide depends on.
Optical test instrument overhaul
When an optical test instrument's measuring slide loses smoothness after years of short, precise strokes, a fresh 13-roller cage returns the guide to its intended running condition.
Measuring stage reconditioning
A precision measuring stage with a cage that has wandered off centre can be recovered by fitting a new LGC2R13 and stroking the slide fully several times to re-centre it.
Is the Airtac LGC Series Cross Roller Guide Rail LGC2R13 the Right Guide?
Confirm the form first: LGC2R13 is a cage spare, so order it only when you already have a complete LGC guide and need the roller cage assembly itself. Match the size by roller diameter (2.0 mm for size 2) and the roller count (13) together, since both appear in the cage code. Check your guide's row arrangement, rail length and accuracy grade from its own complete-guide code, because a cage code carries none of them. When choosing a complete guide, pick the rail length from the maximum-stroke table and set the working stroke slightly shorter, since the cage walks along the rail by roughly half the travel. If your travel is long or you want a sealed bolt-on recirculating unit, step across to AirTAC LSH instead; if the duty is light and the envelope small, step down to LRM. Remember LGC is a fitted part adjusted in place with a dial indicator, grade H guides are the standard offering and grade P is available to order, and the clearance method (adjusting screws, pressure plate or taper block) is a design decision that affects the surrounding machining.
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 LGC2R13 FAQ
It is a size 2 cage with rollers of 2.0 mm diameter, 13 in total. Each roller is rated 292 N dynamic and 290 N static, per roller; these are the rollers' own catalogue figures, not a per-guide total. A cage code carries no rail length, no row arrangement (three-row or four-row) and no accuracy grade, because those belong to the complete guide it fits. Total guide capacity scales with the roller count rather than being a single published figure, so route specific sizing questions to us.
No. It is the roller cage subassembly only: the cage body and its 13 rollers. No rail is supplied, and it cannot function on its own; it must be fitted into a complete LGC size 2 guide. The manufacturer sells cages separately precisely because a cage is an inexpensive, replaceable spare compared with a whole guide, which makes recovering a drifted or damaged cage a small repair rather than a rebuild.
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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.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LGC Series Cross Roller Guide Rail LGC2R13
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