LGR Series
Roller Linear Guideway
Cylindrical roller design for maximum жёсткость and heavy грузоподъёмность. Line contact technology обеспечивает superior stiffness for demanding CNC and robotic applications.
LGR Series Roller Linear Guideway
The LGR Series is Luoyang Songju's premium roller-type linear guideway, designed for applications demanding maximum жёсткость, superior грузоподъёмность, and exceptional positioning accuracy. Unlike ball-type guideways that use point contact, LGR guideways employ cylindrical rollers in line contact with the raceway, distributing loads over a much larger contact area. This fundamental design difference обеспечивает dramatically higher stiffness and load ratings -- making LGR the definitive choice for тяжёлый CNC обрабатывающий центрs, large-scale industrial automation, and precision robotic systems.
Each LGR guideway is manufactured from high-carbon подшипниковая сталь, индукционной закалки and прецизионно шлифованная to exacting geometric tolerances. The четырёхрядная cylindrical roller arrangement обеспечивает equal грузоподъёмность in all directions -- radial, reverse radial, and both lateral orientations -- simplifying machine design by eliminating the need for separate guidance elements. Advanced double-lip seals and торцевая заглушкаs protect the roller circuits from contamination, while an integrated смазка пластичной смазкой system with optional self-lubricator extends maintenance intervals in high-duty-cycle production environments. Interchangeable кареткаs and рельсs enable quick replacement without re-machining mounting surfaces, reducing machine downtime to an absolute minimum.
Скачать чертеж Запросить ценуDetailed Параметры
| Series | LGR (Roller Type) |
| Rolling Element | Cylindrical Rollers (line contact) |
| Roller Arrangement | 4-row, 45° contact angle |
| Precision Grades | P (Нормальный), H (Высокий), SP (Супер-прецизионный) |
| Преднатяг Classes | V0 (light), V1 (medium), V2 (heavy) |
| Ширина рельса Range | 15mm, 20mm, 25mm, 30mm, 35mm, 45mm, 55mm, 65mm |
| Rail Material | Высокоуглеродистая подшипниковая сталь GCr15 / S55C |
| Rail Hardness | 58–62 HRC (induction hardened) |
| Rail Max Length | 4000mm (single piece, longer by butt-joint) |
| Load Capacity | 1.5× to 3× higher than equivalent ball guideway |
| Жёсткость | Very High — line contact распределяет force across roller length |
| Running Параллельность | ≤ 0.002mm / 1000mm (precision-dependent) |
| Max Acceleration | 30 m/s² |
| Max Velocity | 120 m/min |
| Рабочая температура | -20°C to +80°C |
| Seal Type | Double-lip торцевое уплотнениеs + internal longitudinal seals |
| Смазка | Пластичная смазка nipple (standard) + optional integrated self-lubricator |
| Interchangeability | Yes — кареткаs and рельсs independently replaceable |
| Монтажный болт Standard | ISO 4762 / DIN 912 hex socket head cap screws |
| Application | Heavy-duty CNC Machines, Обрабатывающие центры, Press Brakes, Industrial Robots, Large Gantry Systems |
Доступные опции и конфигурации
- Integrated self-lubricator for extended maintenance intervals
- Custom рельс length & bolt-hole spacing to match existing mounting
- Stainless steel рельсs and кареткаs for агрессивная средаs
- High-temperature seals for operating conditions up to 120°C
- Special preload and precision grading for ultra-high-accuracy machines
- Bellows / telescopic covers for heavy contamination protection
LGR (Roller) vs LGS (Ball)
Choosing the right guideway technology depends on your application's specific requirements for грузоподъёмность, жёсткость, speed, and cost. The comparison below helps guide your selection.
| Characteristic | LGR (Roller Type) | LGS (Ball Type) |
|---|---|---|
| Жёсткость | Very High -- line contact распределяет force over larger area | High -- point contact at each ball interface |
| Load Capacity | Superior -- 1.5 to 3x higher than equivalent ball guideway | Good -- adequate for light to medium load applications |
| Максимальная скорость | Moderate to High -- limited by roller recirculation dynamics | Very High -- ball recirculation позволяет higher traversing speeds |
| Friction | Slightly higher rolling resistance due to larger contact patch | Very Low -- minimal rolling friction for высокоскоростной applications |
| Vibration Демпфирование | Superior -- larger contact area поглощаетs more vibrational energy | Good -- lower mass but less inherent damping |
| Wear Resistance | Excellent -- lower contact pressure extends raceway life | Good -- higher contact stress under equivalent loads |
| Application | Heavy-duty CNC, обрабатывающий центрs, large robots, press brakes | General automation, pick-and-place, light CNC, measuring equipment |
Почему выбирают LGR Roller Guideways
The LGR Series is engineered for applications where standard ball guideways reach their performance limits. From тяжёлое резание forces to demanding positioning accuracy, LGR обеспечивает.
Maximum Жёсткость
Cylindrical roller design with line contact распределяет loads across a larger area, providing up to 3x the жёсткость of equivalent ball-type guideways for superior machining precision.
Superior Load Distribution
Line contact geometry spreads applied forces evenly across the roller length, reducing localized stress concentrations and extending raceway срок службы under heavy loads.
Four-Way Equal Load Rating
Identical грузоподъёмность in all four directions -- radial, reverse radial, and both lateral orientations -- упрощает machine design and гарантирует consistent performance under multi-axis loading.
Interchangeable Carriages & Rails
Precision-manufactured to strict tolerance bands, кареткаs and рельсs can be replaced individually without re-machining mounting surfaces, minimizing machine downtime.
Advanced Seal Design
Double-lip торцевое уплотнениеs and internal longitudinal seals prevent contamination ingress, protecting the roller circuits in harsh machining environments with coolant, chips, and abrasive dust.
Self-Смазка Option
Optional integrated self-lubricator обеспечивает a continuous supply of fresh lubricant, dramatically extending maintenance intervals and ensuring optimal film thickness under all operating conditions.
Длительный срок службы
Lower contact pressure, superior contamination protection, and optimized lubrication combine to deliver exceptional срок службы even in the most demanding 24/7 production environments.
Нужны a Linear Guide Solution?
Сообщите нам вашу нагрузку requirements, stroke length, класс точности, and environmental conditions. Наши инженеры по применениям recommend the optimal LGR or LGS guideway configuration with detailed technical documentation and конкурентные цены. 24-hour response guaranteed.