thin roller bearing
Origin: China
Brand: PRS
Category: Bearing
Seal: Double-sided seal
Dimensions: Inner diameter 20mm-250mm, Outer diameter 36mm-310mm
Thickness: 8mm-25mm
- Product Description
Thin Roller Bearing - High-Precision CRBH Series for Space-Critical Applications
When you need reliable rotation in compact machinery, thin roller bearing solutions from PRS® deliver exceptional performance where space is limited. Our CRBH arrangement combines ultra-thin plan with strong stack capacity, making these heading perfect for mechanical autonomy, restorative hardware, and exactness computerization frameworks. With internal breadths from 20mm to 250mm and thickness extending from fair 8mm to 25mm, you get greatest usefulness in negligible space. Each item highlights necessarily inward and external rings, guaranteeing reliable rotational exactness without installation-induced stress.
Product Overview
The CRBH item arrangement speaks to progressed designing for applications requesting both compactness and unwavering quality. These heading utilize a crossed roller arrangement where round and hollow rollers are orchestrated opposite to each other, giving remarkable inflexibility and stack conveyance in an ultra-thin profile.
Key Specifications
| Parameter | Specification |
|---|---|
| Material | GCr15 High Carbon Chrome Steel |
| Inner Diameter | 20mm - 250mm |
| Outer Diameter | 36mm - 310mm |
| Thickness | 8mm - 25mm |
| Seal Type | Double-sided Seal |
| Precision Grade | P4 / P2 Available |
| Load Direction | Combined Radial and Axial |
| Brand | PRS® |
Design Features and Working Principle
Integral Ring Construction
The CRBH thin roller bearing features one-piece inner and outer rings without mounting holes. This integral design eliminates structural weak points and maintains consistent wall thickness around the entire circumference. You benefit from superior load distribution and enhanced bearing life compared to split-ring alternatives.
Crossed Roller Configuration
Rollers are situated at 90-degree interims, rotating their introduction inside the raceway. This course of action permits concurrent dealing with of outspread loads, hub loads, and minute loads inside a single bearing unit. The crossed roller plan gives remarkable inflexibility whereas keeping up the ultra-thin profile you require for space-constrained applications.
Double-Sealed Protection
Factory-installed seals on both sides secure inner components from defilement whereas holding grease. The seal plan equalizations assurance with moo grinding, guaranteeing smooth operation over your equipment's working temperature range.
Performance Advantages
Superior Load Capacity
The line contact between rollers and raceways distributes loads more effectively than point contact designs. You achieve higher load ratings per unit of bearing thickness, making these bearings suitable for demanding applications where traditional ball bearings would be insufficient.
Exceptional Rotational Accuracy
Integral ring construction eliminates assembly tolerances that can affect performance. Your equipment maintains precise positioning with minimal runout, critical for optical systems, measuring instruments, and robotic end-effectors.
Compact Installation
Without mounting holes, the rings maintain maximum structural integrity. You install these bearings using flanges and support seats, allowing flexible mounting solutions while preserving the bearing's performance characteristics.

Applications and Industries
Robotics and Automation
Industrial robots rely on precise joint movement for accurate positioning. The thin roller bearing design provides the rigidity needed for servo motor applications while fitting within joint housings where space is premium.
Medical Equipment
CT scanners, surgical robots, and diagnostic equipment require smooth, accurate rotation in confined spaces. Our bearings deliver the precision and reliability essential for medical applications where failure is not acceptable.
Optical Systems
Telescope mounts, camera gimbals, and laser positioning systems benefit from the exceptional rotational accuracy and moment load capacity of crossed roller designs.
Installation Guidelines
Mounting Considerations
Since CRBH bearings have integral rings, you mount them using external flanges or housing shoulders. This method distributes mounting forces evenly and prevents ring distortion that could affect performance.
Lubrication Requirements
Factory lubrication supports initial operation, but you should establish a maintenance schedule based on your operating conditions. Oil lubrication suits high-speed applications, while grease lubrication works well for moderate speeds and temperatures.
Handling Precautions
Handle these precision bearings carefully during installation. Clean mounting surfaces thoroughly and use proper tools to avoid damage to the sealed bearing surfaces.
Why Choose PRS® for Your Bearing Needs?
With over 20 a long time of bearing fabricating involvement, PRS® gets it the basic necessities of accuracy applications. Our 15,000 m² fabricating office houses 200+ high-precision machines worked by about 300 representatives, counting 35 specialized engineers devoted to item development.
We keep up broad stock of standard item models for fast conveyance, regularly shipping inside 24 hours for normal orders. Our quality administration framework, certified to ISO 9001, ISO 14001, and ISO 45001 measures, guarantees steady item quality with manufacturing plant pass rates surpassing 99.9%.
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 Customization
Our engineering team provides comprehensive technical support from initial bearing selection through installation and maintenance planning. Whether you need standard catalog bearings or custom solutions for unique applications, we deliver engineering-driven solutions tailored to your specific requirements.
For detailed specifications, custom bearing designs, or technical consultation on your thin roller bearing application, contact our engineering team at ljh@lyprs.com. We're ready to help you optimize your equipment's performance with precision bearing solutions that deliver reliable operation in space-critical applications.











