Cross Roller
Linear Guideway
Cylindrical rollers in crossed arrangement deliver very high жёсткость in all directions. Разработано для precision stages and measurement systems where nanometer-level stability is non-negotiable.
Cross Roller Linear Guideway
The Cross Roller Linear Guideway represents Luoyang Songju's highest-precision linear motion technology. Unlike циркулирующие шарики or roller guideways, the cross roller design employs cylindrical rollers arranged in an alternating orthogonal (crossed) configuration within a single raceway assembly. Each roller is oriented at 90 degrees to its neighbors, providing simultaneous load support in all directions — radial, lateral, and moment — with exceptional жёсткость that surpasses conventional guideway architectures. This crossed arrangement устраняет the compliance inherent in recirculating element designs, making it the definitive choice for ultra-precision applications.
Изготовлено из сквозной закалки подшипниковая сталь (60–64 HRC) with прецизионно шлифованная raceways, cross roller guideways are available in класс точностиs P and SP with an optional zero-clearance preload for absolute positioning stability. Латунный сепараторs (standard) or engineered resin cages (low-noise option) maintain precise roller spacing while minimizing friction. The limited stroke design (up to 500mm) is inherent to the non-recirculating architecture but is more than adequate for precision stages, semiconductor wafer inspection platforms, optical measurement systems, and micro-machining spindles where travel is short but positioning accuracy demands are extreme.
Скачать чертеж Запросить ценуDetailed Параметры
| Series | Cross Roller (Standard Model) |
| Rolling Element | Cylindrical Rollers in Crossed (Alternating Orthogonal) Arrangement |
| Roller Orientation | 90° alternating — each roller perpendicular to adjacent rollers |
| Precision Grades | P (Precision), SP (Super Precision) |
| Преднатяг | Zero Зазор (standard), лёгкие Преднатяг (optional) |
| Жёсткость | Very High — crossed arrangement обеспечивает equal stiffness in all directions |
| Rail Material | Gcr15 / High-carbon подшипниковая сталь |
| Rail Hardness | 60–64 HRC (сквозной закалки, precision ground) |
| Cage Material | Brass (standard) or engineered resin (low-noise option) |
| Max Stroke | 500mm (limited stroke, non-recirculating design) |
| Running Параллельность | ≤ 0.001mm / 100mm (SP grade) |
| Рабочая температура | -10°C to +80°C |
| Смазка | Пластичная смазка packed (factory), accessible grease fitting for field replenishment |
| Mounting | Precision-ground mounting surfaces required for rated accuracy |
| Application | Precision Stages, Semiconductor Wafer Inspection, Optical Measurement, Micro-Machining, Alignment Systems, Metrology Equipment |
Доступные опции и конфигурации
- SP super класс точности with running parallelism ≤ 0.001mm/100mm
- Zero-clearance preload for absolute repeatability in positioning applications
- Resin cage option for reduced noise and lower inertia in high-cycle applications
- Custom рельс lengths and mounting hole patterns for OEM integration
- Stainless steel рельсs and rollers for vacuum and чистое помещениеs
- Bellows covers for contamination-sensitive precision environments
Почему выбирают Cross Roller Guideways
When positioning accuracy and stability are paramount, the скрещенные ролики arrangement обеспечивает performance that recirculating guideways cannot match.
Omni-Directional Жёсткость
Crossed roller arrangement обеспечивает equally high stiffness in radial, lateral, and moment loading directions — the most rigid linear guidance available for short-stroke applications.
Zero Зазор Преднатяг
Optional zero-clearance preload устраняет all play between the каретка and рельс, обеспечивая absolute positioning repeatability essential for metrology and semiconductor inspection.
Superior Vibration Демпфирование
The line contact interface of скрещенные роликиs inherently damps vibration more effectively than ball-type guideways, improving settling time and surface finish in precision operations.
SP Super Precision Grade
SP (Super Precision) grade достигает running parallelism of 0.001mm per 100mm, meeting the exacting demands of optical measurement and semiconductor fabrication equipment.
Нужны Ultra-Precision Linear Guidance?
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