SBR20 Linear Rail is a 20mm fully supported round linear rail designed for CNC routers, laser engraving machines, 3D printers, woodworking machinery, packaging equipment, and medium-load automation systems. It combines a chrome-plated round shaft with a continuous aluminum support base, helping reduce shaft deflection and providing smoother linear motion over longer travel lengths than unsupported round shafts.
DLY supplies SBR20 linear rail assemblies with matched SBR20UU linear bearing blocks. Standard and custom cut lengths from 340mm to 6000mm are available, and longer travel requirements can be handled through rail jointing according to the machine layout.
SBR20 Linear Rail Product Images
Show the SBR20 supported linear rail structure, including the aluminum support base, chrome-plated round shaft, matched bearing blocks, mounting holes, and sliding assembly details.
SBR20 supported linear rail with matched bearing blocks.
20mm round shaft mounted on continuous aluminum support base.
Linear rail assembly with open-type bearing blocks.
Block and shaft contact area for smooth linear movement.
SBR20 Linear Rail Specifications
SBR20 is commonly selected when a machine needs a 20mm round shaft system with better support than a standard unsupported shaft. The aluminum base helps distribute the load along the rail length, while the SBR20UU block provides low-friction sliding motion.
| Brand | DLY |
| Assembly Model | SBR20 Linear Rail |
| Matched Slide Block | SBR20UU Linear Bearing Block |
| Shaft Diameter | Φ20 mm |
| Guide Rail Length | 340–6000 mm per piece; custom cut length available |
| Dynamic Load Per Block | 882 N |
| Static Load Per Block | 1370 N |
| Main Structure | Chrome-plated round shaft with aluminum support base |
| Material | High carbon steel shaft and aluminum base |
| Surface Treatment | Chrome-plated shaft surface for wear resistance and corrosion protection |
| Typical Applications | CNC routers, laser engraving machines, 3D printers, woodworking machinery, packaging equipment, automation axes |
Precision and Structural Details
These details affect installation reliability, running smoothness, and long-term service life.
Linear deviation control for stable rail movement.
Shaft roundness precision supports smoother sliding.
Accurately positioned mounting holes for easier installation.
SBR20 Linear Rail Performance Highlights
Load Capacity
Dynamic load per block is 882N and static load per block is 1370N, suitable for many medium-load linear motion systems.
Built-in Ball Bearing
The SBR20UU block provides low-friction linear movement and helps the carriage move smoothly along the supported shaft.
Stable Sliding
The supported shaft and matched block help reduce vibration and improve motion stability during repeated travel.
Chrome-Plated Surface
The chrome-plated shaft surface improves wear resistance and offers better protection in general industrial environments.
Customization and Supply Capability
DLY can supply SBR20 linear rails as individual rails, rail pairs, or rail-and-block assemblies. For replacement orders, please provide the existing model, total length, block quantity, and mounting hole layout. For new machine projects, DLY can help confirm whether SBR20 is suitable or whether a larger supported rail, TBR rail, or square linear guideway would be better.
Rails can be cut according to required travel length, machine frame size, or replacement dimensions.
SBR20UU blocks can be supplied together with the rail to reduce matching problems during installation.
For travel longer than one standard rail, jointing solutions can be discussed according to your layout and accuracy requirements.
FAQ – SBR20 Linear Rail
SBR20 linear rail is normally used with SBR20UU open-type linear bearing blocks. DLY can supply the rail and blocks together for easier matching.
SBR20 has a 20mm round shaft supported by an aluminum base. This structure reduces shaft bending over longer travel compared with an unsupported round shaft.
Yes. DLY can provide custom cut lengths according to your machine stroke, installation space, and drawing requirements.
Yes. SBR20 is commonly used in CNC routers, woodworking machines, laser engraving machines, and other medium-load linear motion equipment.
Rails are protected with anti-rust treatment, wrapping, foam padding, and suitable outer packaging to reduce damage during long-distance transport.
Please provide rail length, quantity, block quantity, application, and drawing if customized mounting holes or special installation requirements are needed.
Need SBR20 Linear Rail for Your Machine?
Send DLY your required rail length, block quantity, application, and drawing. We can help confirm the suitable SBR20 linear rail assembly and provide quotation support.
Related Linear Shaft Products:
Linear Shaft | SBR Linear Guide Rail | SBR UU | Supported Linear Rail
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