DLY SBR25 Linear Shaft is built around a 25mm hardened linear shaft and a continuous aluminum support base, offering a practical linear motion solution for CNC routers, laser machines, woodworking equipment, packaging machinery, and medium-load automation systems. Compared with unsupported round shafts, the supported SBR25 structure helps improve rail rigidity, reduce shaft deflection over longer travel lengths, and keep sliding motion more stable during repeated machine operation.
DLY supplies SBR25 supported linear shafts as rail-only parts or complete rail kits with matching SBR25UU / SBR25LUU linear bearing blocks. Custom rail length, paired rail supply, anti-rust packaging, and drawing confirmation are available for OEM buyers, machine builders, and distributors.
SBR25 supported linear shaft with matching bearing blocks for CNC and automation linear motion systems.
SBR25 Supported Linear Shaft Overview
The SBR25 linear shaft is a supported round rail structure. Unlike an unsupported linear rod, the shaft is fixed onto a continuous aluminum base, which improves rigidity and helps control bending during long-stroke movement. This makes it a practical choice when the machine needs stable linear sliding, easy installation, and better cost control than a profile linear guide system.
The 25mm shaft diameter gives the SBR25 rail a stronger load-bearing structure than smaller SBR16 or SBR20 rails, while still remaining easier to install and more economical than many heavy-duty square linear guideways. It is commonly used with SBR25UU open bearing blocks, SBR25LUU long blocks, or other compatible open linear bearings.
| Product Name | SBR25 Linear Shaft / SBR25 Supported Linear Rail |
|---|---|
| Rail Type | Supported round linear shaft with aluminum base |
| Shaft Diameter | 25 mm |
| Shaft Material | GCr15 bearing steel / C45 high-carbon steel available according to order requirements |
| Support Base Material | Aluminum alloy support base |
| Surface Treatment | Hardened, ground, polished, and anti-rust treated surface |
| Hardness | HRC 58–62, depending on shaft material and production batch |
| Diameter Tolerance | g6 / h6 or customized according to drawing confirmation |
| Available Length | Standard and custom lengths available, up to 6000 mm |
| Compatible Bearing Blocks | SBR25UU, SBR25LUU, LM25UU-OP open linear bearing type |
| Supply Options | Rail only, rail with blocks, paired rails, complete rail kits |
| Main Applications | CNC router, laser engraver, packaging machine, woodworking machine, DIY CNC, automation slide system |
Product Structure and Detail Images
The SBR25 rail uses a simple but stable structure: a hardened 25mm cylindrical shaft is mounted on an aluminum support rail, and the open bearing block slides along the exposed upper surface of the shaft. This structure is easy to install on machine frames and aluminum profiles, and it is more tolerant of general mounting surfaces than many high-precision profile rail systems.
Pre-drilled aluminum support base for easier installation on machine frames.
Close view of the 25mm shaft, polished surface, and aluminum support structure.
SBR25 rail with matching bearing blocks for smooth linear sliding.
Bearing block assembly for CNC, automation, and motion control equipment.
Key Features of DLY SBR25 Linear Shaft
Supported Rail Structure
The continuous aluminum base supports the 25mm shaft along the rail length, helping reduce bending and improving stability during linear movement.
Smooth Sliding with SBR25UU Blocks
The rail is designed for open linear bearing blocks such as SBR25UU and SBR25LUU, providing low-friction sliding for machine axes and automation slides.
Easy Installation
The aluminum support base has mounting holes for direct installation onto steel frames, aluminum profiles, CNC tables, and custom machine structures.
Custom Length Supply
DLY can cut SBR25 rails according to customer travel length, frame design, and machine drawing requirements.
Cost-Effective Linear Motion
For moderate precision and medium-load applications, SBR25 supported rails provide a practical balance between rigidity, installation convenience, and cost.
OEM and Batch Supply
Suitable for distributors, machine builders, and OEM projects requiring repeated supply of standard or customized rail kits.
SBR25 Linear Shaft and SBR25UU Block Reference
For most buyers, SBR25 is ordered together with SBR25UU or SBR25LUU bearing blocks. The following table is a practical reference for model confirmation. Final dimensions and load capacity should be confirmed according to DLY drawings and the selected bearing block type before bulk order.
| Item | Reference Data | Buyer Notes |
|---|---|---|
| Rail Model | SBR25 | 25mm supported round rail |
| Standard Block | SBR25UU | Open linear bearing block for supported shaft |
| Long Block Option | SBR25LUU | Longer housing, often used when higher stability is required |
| Shaft Diameter | 25 mm | Confirm shaft tolerance before precision assembly |
| Reference SBR25UU Block Size | 65 × 60 × 47 mm | Final drawing may vary by production standard |
| Reference Load Rating | Dynamic C: about 980 N / Static C0: about 1560 N | Depends on bearing block design, lubrication, installation, and operating condition |
| Mounting | Pre-drilled aluminum base | Hole spacing can be checked according to rail length drawing |
How to Order SBR25 Linear Shaft from DLY
To quote the correct SBR25 rail, please provide the rail length, quantity, required bearing blocks, and whether you need rail-only parts or a complete rail kit. For OEM projects, DLY can confirm the drawing, hole spacing, packaging method, and shipping protection before production.
- Rail model: SBR25
- Rail length: for example 500mm, 1000mm, 1200mm, 1500mm, 2000mm, or custom length
- Quantity: rail only or paired rails
- Bearing blocks: SBR25UU, SBR25LUU, or without block
- Application: CNC router, laser machine, packaging machine, automation slide, etc.
- Special requirement: drawing, tolerance, surface treatment, end machining, private label, or export packing
Why Choose DLY for SBR25 Supported Linear Rails?
FAQ About SBR25 Linear Shaft
Request SBR25 Linear Shaft Price and Drawing
Looking for SBR25 supported linear shafts, SBR25UU bearing blocks, or custom rail kits? Contact DLY for model confirmation, quotation, and technical support.
Email: export@dlybearing.com
More Linear Shaft Products: View DLY Linear Shaft Series
Related models: SBR16 Linear Shaft | SBR30 Linear Shaft | Linear Bearing Blocks
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