AirTAC LGC crossed roller ways for precision linear motion. Confirm three-row A or four-row...
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AirTAC LGC crossed roller ways for precision linear motion. Confirm three-row A or four-row B, rail lengths, roller count, accuracy and matched-set interfaces. Send complete code or drawing with required travel, load direction, quantity and destination for a quotation.
Know your model? Send it with the quantity for a quote. Not sure? Start with a photo, label or description. We help identify the model and clarify availability and lead time. Mixed parts lists are welcome too.
Match an LGC crossed roller way
AirTAC LGC official ordering
Helpful for Model Matching:
| Construction / size | Non-recirculating crossed roller way. Size1/2/3/4/6 means roller diameter1.5/2/3/4/6 mm; not cylinder bore. A three-row; B four-row; size6 only B. |
| Rail length / roller count | Size1 lengths20/30/40/50/60/70/80; size2 30–180 in15 steps; size3 50–300 in25; size4 80–480 in40; size6 100–600 in50 mm. Rail length and maximum travel differ; confirm shorter-rail length and R roller-count cross-reference table. |
| Unequal rails | 200 means equal200 mm rails; 200×100 means main rail200 and side rail100 mm. Use the shorter rail in the maximum-stroke table; R is number of cylindrical rollers in each cage, not number of rails. |
| Matched-set supply | A set: one main rail, two side rails, two roller cages and mounting screws. B set: four side rails, two roller cages and mounting screws. Accuracy is controlled as a matched set, not guaranteed if parts from different sets are mixed. |
| Accuracy H / P | H High / P Precision. Height tolerance±0.02/±0.01 mm; height variation0.01/0.005 mm; width tolerance±0.02/±0.01 mm. Raceway parallelism depends on rail length, in μm per graph. |
| Per-roller ratings | Size1/2/3/4/6 basic dynamic C1:125/292/640/1230/3175 N per roller; basic static C0:120/290/610/1170/2550 N per roller; allowable F0:39/97/203/390/810 N per roller. These are not complete-set load or payload kg. |
| Set load / direction | Set dynamic rating uses pitch, roller count and vertical/lateral formula. Static and allowable load use R×per-roller rating; select with actual load direction, working load N and safety factors. Do not equate basic rating with recommended working load. |
| Stroke / cage migration | Roller cage travels approximately half table movement. Required travel depends on shorter rail and R; keep reserve for high speed, vertical use, acceleration, unbalanced load and cage offset. Operate below allowable travel/load. Full-stroke cycles may recenter cage per manufacturer instructions. |
| Mounting / adjustment | Machine mounting surfaces to match rail parallelism/flatness; follow A/B installation sequence. Use two or more adjusting screws even for short rails. Mounting torque size1/2/3/4/6:0.14/0.40/1.40/3.20/6.60 N·m; adjusting torque0.008/0.012/0.05/0.08/0.2 N·m. They are different screws/torques. |
| Preload / screw spacing | Excessive preload dents rollers and shortens life. Size1/2/3/4 allowable displacement−2/−3/−4/−5 μm; size6 not published in this table. Adjusting-screw spacing size1/2/3/4:10/15/25/40 mm; source repeats LGC4, no size6 spacing supplied. |
| Lubrication / safety | Factory anti-rust oil is not service lubrication. Wipe rails and apply suitable grease before use; do not mix different grease. Confirm lubricant for cleanroom/vacuum/temperature. Prevent adhesive reaching roller contact surfaces. Handle carefully; installation, preload and surface errors damage accuracy. |
| Life / temperature | Nominal life formula in km and service-life conversion in hours depend on working load, temperature/load factors, stroke and reciprocations/minute. Temperature factor graph100–200°C is a derating calculation, not a declared operating temperature range. |
Ordering code matching
Code format
LGC [size] [A/B] [length or main×side] R[count] -[H/P]Published complete set code; cages separateLGC3A200R25-HLGC6B300X200R19-PLGC1B30R8-H| 1Model / size | 2Construction | 3Rail dimension | 4Roller number | 5Accuracy |
|---|---|---|---|---|
| LGC;1/2/3/4/6 means roller diameter1.5/2/3/4/6 mm. | A three-row or B four-row;LGC6 only B. | Published length or main×side lengths; not working travel. | R[number] in each cage; match shorter rail and maximum-stroke matrix. | Mandatory -H High or -P Precision. |
If the label is incomplete, send the readable parts together with a photo.
LGC3A200R25-H1Model / size
LGC;1/2/3/4/6 means roller diameter1.5/2/3/4/6 mm.
2Construction
A three-row or B four-row;LGC6 only B.
3Rail dimension
Published length or main×side lengths; not working travel.
4Roller number
R[number] in each cage; match shorter rail and maximum-stroke matrix.
5Accuracy
Mandatory -H High or -P Precision.
AirTAC LGC crossed roller ways for precision linear motion. Confirm three-row A or four-row B, rail lengths, roller count, accuracy and matched-set interfaces. Send complete code or drawing with required travel, load direction, quantity and destination for a quotation.
No. Maximum travel depends on the shorter rail and roller count. Ratings are N per roller and need the set load-direction formulas and safety factors. Send installed drawing, load, speed and required travel for technical confirmation.
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