Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H
The AirTAC LGC Series Cross Roller Guide Rail LGC6B250R22-H 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 asComplete guide set
- SizeLGC6
- Roller diameterØ6.0 mm
- Rollers in cage22
- Rail length50 mm
- AccuracyH — high 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 LGC Series Cross Roller Guide Rail LGC6B250R22-H
This LGC6B250R22-H is a full guide assembly: four rows of crossed 6.0 mm rollers running between hardened V-raceways on a 250 mm stainless steel rail, with 22 rollers carried in the cage. Line contact replaces the point contact of balls, which is why the guide is so much stiffer for its size. It is not a recirculating product - the rollers stay in the cage and travel with the slide, so the 250 mm rail, not a endless loop of balls, defines how far the slide can go.
Every roller is rated by the catalogue at 3175 N dynamic and 2550 N static, per roller. Watch the inversion against ball-guide habit: on a crossed roller guide the static figure is the smaller of the two, where a recirculating ball carriage usually shows static at roughly one and a half times dynamic, so sizing habits carried over can point the wrong way - check both. Twenty-two contact points share the work, and final accuracy comes from the fitted dial-indicator adjustment on your machine at least as much as from the grade H stamp.
Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H Technical Specifications
| Model | Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H |
|---|---|
| Series | LGC Series Crossed Roller Guide |
| Supplied as | Complete guide set |
| Construction | Crossed precision rollers in a cage, NON-recirculating, line contact |
| Size code | LGC6 |
| Roller diameter | Ø6.0 mm |
| Rollers per cage | 22 |
| Rail material | Stainless steel |
| Travel | Limited by rail length — the cage travels about half the stroke |
| Rail length | 50 mm |
| Basic dynamic load rating C | 3175 N per roller |
|---|---|
| Basic static load rating C0 | 2550 N per roller |
| Accuracy grade | H — high grade |
| 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 |
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.
Model Code: Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H
| LGC | LGC Series Crossed Roller Guide. |
|---|---|
| 6 | Size code — sets the roller diameter (Ø6.0 mm). |
| A / B | Row arrangement: A three-row, B four-row. |
| 50 | Rail length in mm. |
| R22 | Cage carrying 22 rollers. |
| -H / -P | Accuracy grade: H high, P precision. |
What Is In The Box
| This order | Complete guide set |
|---|---|
| Rail | Yes, 50 mm |
| Carriage | Yes |
Rail and carriage(s) supplied together, matched as a set. 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 LGC6B250R22-H Is Used
Wafer inspection station
A semiconductor inspection stage rides on four-row crossed rollers, keeping the imaging plane steady and level over a short scanning stroke.
Laser interferometer bench
The moving mirror carriage needs sub-micron-smooth, high-stiffness motion; crossed rollers deliver line contact without the wander of recirculating elements.
X-ray equipment slide
Detector or source positioning on a short, precise stroke benefits from the guide's static stiffness and its stainless steel rail in a demanding environment.
Is the Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H the Right Guide?
Start with the form: this is a complete guide - rail plus roller cage, assembled and adjusted in place with a dial indicator, not a bolt-on sealed unit. If you are replacing only a damaged or drifted cage, the LGC6R22 spare costs a fraction of a full guide. Confirm size by roller diameter and roller count together: 6.0 mm rollers, 22 in the cage, four rows for a symmetric, high-capacity layout. Take the rail length from the maximum-stroke table, not from the travel alone, and set the working stroke shorter so the cage has room to walk. We hold grade H from stock; grade P comes to order. Choose the clearance method early, because it shapes the surrounding machining: adjusting screws for ordinary clearance, a pressure plate where rigidity matters, a taper block for the highest rigidity and accuracy. Budget time for the dial-indicator alignment during the build. For travel beyond about half a metre, or if you want a sealed bolt-on recirculating assembly, move to LSH; for light loads in a compact envelope, look at LRM. Rails are matched as a set - never mix rails from different sets.
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 LGC6B250R22-H FAQ
Size 6 means 6.0 mm rollers. Each roller is rated 3175 N dynamic and 2550 N static, per roller. The cage holds 22 of them in a four-row (B) arrangement on a 250 mm rail, supplied in grade H accuracy. Because capacity depends on how the load distributes across rollers and contact angles, neither the catalogue nor we state a per-guide total - it grows with the roller count. Tell us your load and mounting details and we will confirm the sizing.
Yes - LGC is a fitted part, adjusted in place. Rails are torqued in sequence to the catalogue's recommended figures while a dial indicator watches variation over the full stroke; on a four-row guide the adjusting screws are tightened in the order a to e for minimum indicator variation. Clearance choices rise from adjusting screws through a pressure plate to a taper block as rigidity demands grow. Under-adjustment costs accuracy and life; over-preload can dent raceways or twist a rail. If the cage drifts, several full strokes bring it back toward centre.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac LGC Series Cross Roller Guide Rail LGC6B250R22-H
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