
The AirTAC Airtac LGC Series Cross Roller Guide Rail LGC6R45 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.
LGC6R45 is the largest stocked cage combination for AirTAC size 6 LGC crossed roller guides: 45 rollers of 6.0 mm diameter in crossed alternating orientation between hardened V-raceways. The order delivers the cage and rollers alone - it is not a rail and not a complete guide, and no rail is supplied. The complete guide, whose stainless steel rails define the available travel, is ordered separately.
Each roller is rated 3175 N dynamic and 2550 N static, per roller; with 45 of them, the load spreads over more line contacts than any other size 6 cage we stock. The catalogue gives per-roller figures only, so a per-guide total is not something we publish - capacity scales with the roller count, and specific sizing questions are best sent to us. Because the guide does not recirculate, travel is fixed by the rail and the cage travels with the slide by roughly half the stroke; a fresh cage, fitted and adjusted with a dial indicator, is the inexpensive fix compared with replacing an entire guide.
| Model | Airtac LGC Series Cross Roller Guide Rail LGC6R45 |
|---|---|
| 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 | 45 |
| 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.
| LGC | LGC Series Crossed Roller Guide. |
|---|---|
| 6 | Size code — sets the roller diameter (Ø6.0 mm). |
| R45 | Cage carrying 45 rollers. |
| -H / -P | Accuracy grade: H high, P precision. |
| This order | Roller cage assembly (spare part) |
|---|---|
| Rail | No — not supplied with this item |
| Rollers and cage | Yes, 45 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.
When one rail of a matched LGC set is damaged, the whole set is replaced - never mixed - and a 45-roller cage spare on the shelf shortens the rebuild of the precision axis considerably.
Maintenance planners stock size 6 cages as routine line items; held in stores at a fraction of a complete guide's cost, an LGC6R45 turns a cage failure into hours of downtime rather than weeks.
An annual overhaul of an optical test instrument's slide includes inspecting the crossed roller cage; this 45-roller spare covers the heaviest-loaded size 6 axes in the instrument fleet.
Confirm the form before ordering: cage codes read LGC, size digit, R, roller count - no row letter, no rail length, no accuracy grade. This one suits an existing LGC6 guide whose original cage carries 45 rollers; match both the 6.0 mm roller diameter and that count, and never mix rails from different sets. If the application really needs long travel or a sealed, bolt-on recirculating guide, move to AirTAC LSH; for light loads in a small envelope, LRM is the leaner choice. On LGC, take the rail length from the manufacturer's maximum-stroke table and set the working stroke slightly shorter, since the cage walks along the rail; decide the clearance method - adjusting screws, pressure plate or taper block - at design time; and remember grade H guides are stocked while grade P is available to order. Budget time for the fitted dial-indicator adjustment.
Quick checklist
45 rollers, 6.0 mm diameter, dynamic rating 3175 N per roller, static rating 2550 N per roller - the unit is per roller, and the total scales with the count rather than being a published figure. A cage code carries no rail length, row arrangement or accuracy grade; those belong to the complete LGC guide code. Stainless steel rails are stocked from 20 to 600 mm.
Less than the rail length. Because the rollers never recirculate, the cage moves along with the slide by about half the travel, so the rail must be chosen from the manufacturer's maximum-stroke table and the working stroke set slightly shorter. If drift appears, several full strokes re-centre the cage; on vertical installations leave margin, since gravity accumulates the drift in one direction.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.