Airtac LGC Series Cross Roller Guide Rail LGC6R9
The AirTAC Airtac LGC Series Cross Roller Guide Rail LGC6R9 is a crossed roller guide using Ø6.0 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)
- SizeLGC6
- Roller diameterØ6.0 mm
- Rollers in cage9
About the Airtac LGC Series Cross Roller Guide Rail LGC6R9
This is the AirTAC LGC6R9 roller cage: nine 6.0 mm hardened rollers held in a cage in crossed orientation, sold as the spare subassembly only. No rail is included, and this code does not describe a complete guide or a rail - for those, order an LGC complete guide. Inside a fitted assembly, the crossed line contact of these rollers against the stainless steel V-raceways is what gives LGC its high rigidity, and since nothing recirculates, the working stroke is always shorter than the rail length.
For size 6 rollers the catalogue lists 3175 N dynamic and 2550 N static load rating per roller - with the static figure slightly below the dynamic one, the opposite of a ball guide, where static runs about 1.5 times dynamic. Nine rollers means nine load-sharing contact paths, but a per-guide total is not a figure we quote; ask us for sizing help. Cage spares like this cost a fraction of a complete guide, which is why a drifted or damaged cage is a cheap fix rather than a rebuild - and why LGC is assembled and adjusted in position with a dial indicator rather than treated as a bolt-on part.
Airtac LGC Series Cross Roller Guide Rail LGC6R9 Technical Specifications
| Model | Airtac LGC Series Cross Roller Guide Rail LGC6R9 |
|---|---|
| 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 | LGC6 |
| Roller diameter | Ø6.0 mm |
| Rollers per cage | 9 |
| Rail material | Stainless steel |
| Travel | Limited by rail length — the cage travels about half the stroke |
| Basic dynamic load rating C | 3175 N per roller |
|---|---|
| Basic static load rating C0 | 2550 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 LGC6R9
| LGC | LGC Series Crossed Roller Guide. |
|---|---|
| 6 | Size code — sets the roller diameter (Ø6.0 mm). |
| R9 | Cage carrying 9 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, 9 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 LGC6R9 Is Used
Coordinate measuring stage rebuild
A precision measuring machine's short-travel stage loses smoothness when its roller cage indents after a shock or a drop. Fitting a fresh nine-roller size 6 cage and re-centering it by stroking the slide restores the measuring travel without replacing the matched guide.
Laser optic test bench repair
An optical test instrument carrier that has suffered cage drift - often from eccentric loading or vibration - is recovered by running several full strokes to re-center the cage, or renewed with this spare where the cage itself is damaged.
Maintenance workshop spares stock
A plant maintenance team running several size 6 LGC slides keeps this nine-roller cage on the shelf, so a failed guide is back in service within one shift instead of waiting weeks for a complete replacement set to arrive.
Is the Airtac LGC Series Cross Roller Guide Rail LGC6R9 the Right Guide?
Check what you actually need before ordering: a cage code like this one supplies rollers and cage only, so a buyer expecting a finished linear stage should instead look at the LGC complete guide range, at sealed recirculating LSH for longer travel, or at compact LRM for light loads and small envelopes. Size selection is by roller diameter and cage roller count together; row arrangement, rail length from the maximum-stroke table, accuracy grade (H from stock, P to order) and the clearance method - adjusting screws for ordinary clearance, a pressure plate or taper block where rigidity demands it - all belong to the complete set, not to this spare. Accuracy is matched-set controlled, so never pair this cage with rails from a different set. Budget real assembly time: the guide is adjusted in place with a dial indicator, and a carefully fitted H set often outperforms a hastily installed P one.
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 LGC6R9 FAQ
Size 6, meaning 6.0 mm diameter rollers, nine of them in this cage. Per roller the catalogue gives 3175 N dynamic load rating and 2550 N static load rating, always stated in N per roller - and, unusually for a linear guide, static sits below dynamic here. No rail length, row arrangement or accuracy grade applies to the cage code itself; those parameters define the complete matched set it belongs to. Capacity rises with roller count, but a per-guide total is not something we derive or publish, so ask us to check your specific load case.
Neither. It is the cage-and-roller spare part only - no rail is supplied, and it cannot function as a linear guide on its own. AirTAC sells cages separately so a guide degraded by cage drift, shock or a dropped component can be repaired cheaply instead of replaced whole. If you are starting from scratch, order a complete LGC guide with the rail length chosen from the maximum-stroke table and the working stroke set slightly shorter; if you already have a size 6 set, match this nine-roller cage to its parts table and keep the set exclusive - never mix rails between sets.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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