SX Series Cross Roller Bearing
Brand: PRS
Category: Bearing
Seal: Double-sided seal
Size: Inner diameter 70mm-500mm, Outer diameter 90mm-620mm
- Product Description
SX Series Cross Roller Bearing - Precision Engineering for Critical Applications
The SX Series Cross Roller Bearing represents an advanced engineering solution specifically designed for applications requiring exceptional inner ring rotational accuracy. This ultra-thin bearing setup highlights an indispensably inward ring matched with a part external ring get together, empowering you to accomplish prevalent accuracy whereas minimizing installation space prerequisites. The orthogonal roller course of action and V-groove raceway plan make the item an perfect choice when you require to handle complex multi-directional loads with a single bearing unit rather than ordinary combined arrangements.
Technical Structure and Working Principle
The SX arrangement utilizes a modern crossed-roller setup where round and hollow rollers are situated opposite to each other inside precision-machined V-groove raceways. This basic course of action provides:
Split External Ring Plan: The external ring isolates into two areas, secured by three accuracy holding rings. This setup encourages simpler establishment whereas keeping up auxiliary judgment amid operation.
Integral Inward Ring: The one-piece internal ring development guarantees ideal rotational precision and kills potential misalignment issues common in multi-piece designs.
Crossed Roller Course of action: Rollers substitute at 90-degree points, making line contact or maybe than point contact. This plan empowers synchronous dealing with of outspread loads, bidirectional hub loads, and minute loads inside a compact profile.
Spacer Maintenance Framework: High-precision plastic spacers keep up appropriate roller division, decreasing contact and avoiding roller-to-roller contact amid operation.

Performance Advantages and Engineering Benefits
Load Capacity and Stiffness
The crossed-roller setup conveys 3-4 times higher unbending nature compared to precise contact ball orientation of comparable measurements. You advantage from decreased flexible distortion beneath overwhelming loads, guaranteeing reliable exactness all through the operational envelope.
Space Optimization
The ultra-thin profile dispenses with the require for complex bearing courses of action. This permits you to accomplish noteworthy weight decrease and compact machine plans without compromising load-bearing capability.
Precision Performance
Available in ISO precision grades P6, P5, P4, and P2, the SX arrangement keeps up great runout precision. The moo contact coefficient guarantees smooth revolution with negligible torque variation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Inner Diameter Range | 70mm - 500mm |
| Outer Diameter Range | 90mm - 620mm |
| Bearing Materials | GCr15, GCr15SiMn |
| Accuracy Grades | P6, P5, P4, P2 |
| Seal Configuration | Double-sided seal |
| Raceway Hardness | 58-64 HRC |
| Operating Temperature | -20°C to +120°C |
Industrial Applications
Robotics and Automation
In mechanical robot joints, the item gives the accuracy required for exact situating. The indispensably inward ring plan suits applications where the inward race turns, such as robot midriff joints and verbalized arm connections.
Machine Apparatus Rotational Tables
CNC machining centers utilize these orientation for accuracy ordering tables. The tall minute stack capacity handles cutting powers whereas keeping up situating exactness inside micrometers.
Medical Equipment
CT scanners and X-ray situating frameworks require smooth, vibration-free turn. The low-friction characteristics guarantee picture quality remains uncompromised amid checking operations.
Optical and Estimation Systems
Precision estimation gear benefits from the extraordinary rotational exactness. The inflexible structure minimizes diversion that seem influence estimation repeatability.
Installation and Mounting Considerations
The SX arrangement requires rib mounting due to the nonappearance of mounting gaps in the rings themselves. The part external ring plan rearranges establishment in kept spaces. Appropriate preload alteration guarantees ideal execution and benefit life.
When selecting mounting equipment, consider warm extension impacts and guarantee satisfactory back for minute loads. The bearing situate plan ought to give uniform stack dispersion over the bearing face.
Quality Assurance and Manufacturing Excellence
At Luoyang Precision Bearing Co., Ltd., our 20+ years of specialization in precision bearings ensures consistent quality. Our 15,000 m² manufacturing facility employs 200+ high-precision machines operated by experienced technicians and 35 technical engineers.
Every SX Series Cross Roller Bearing undergoes comprehensive testing including:
- Dimensional accuracy verification
- Surface finish inspection
- Load capacity validation
- Rotational torque measurement
Our ISO 9001, ISO 14001, and ISO 45001 certifications demonstrate our commitment to quality management. With a factory pass rate exceeding 99.9%, you can rely on consistent performance from our bearings.
Packaging & shipping
Your goods are unique, and their journey should be flawless. Therefore, we offer professional and customized packaging services. Our experienced team will evaluate your goods' characteristics, transportation route, and environmental requirements to recommend the most secure solution.

Certificaiton

Partners
Your trust, we cherish in heart all times and will reciprocate that trust with unwavering quality.

Technical Support and Custom Solutions
Beyond standard configurations, we provide engineering support for custom SX series applications. Our technical team works with you to optimize bearing selection based on your specific load conditions, speed requirements, and environmental factors.
For technical inquiries or custom bearing solutions, contact our engineering team at ljh@lyprs.com. We provide comprehensive application analysis to ensure optimal bearing performance in your equipment.
The SX Series Cross Roller Bearing delivers the precision and reliability your critical applications demand, backed by proven manufacturing expertise and comprehensive technical support.











