Product Introduction
The 15mm linear guide rail is a compact linear motion component with a 15mm rail width. It is commonly used where a machine needs guided movement, stable load support and repeatable positioning within a limited mounting space. Compared with larger 20mm, 25mm or 30mm rails, the 15mm size helps reduce installation footprint while still offering reliable performance for suitable load conditions.
DLY's 15mm linear guide rail range includes HD series heavy-load ball guideways, ED series low-profile ball guideways and RD series roller guideways. This allows customers to select different block shapes, mounting methods, assembly heights, load ratings and rigidity levels according to the actual machine structure.
HD Series Available
Heavy load 15mm guide rails with flange or square block options.
ED Series Available
Low-profile 15mm rails for compact height and space-saving installation.
RD Series Available
Roller-type 15mm options for higher rigidity requirements.
Custom Rail Length
Maximum rail length up to 4000mm, with model matching support.
15mm Linear Guide Rail Model Options
The following 15mm models are organized according to DLY's linear guide rail product attribute table. Customers can choose the suitable model according to block type, mounting direction, rail height, overall height, load rating and installation space.
| Model No. | Series / Type | Mounting | Rail Width | Rail Height | Block L×W×H | Overall Height | Dynamic Load C | Static Load C₀ | Rail Weight | Block Weight | Accuracy |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HDW15CA | HD series, Flange Type, Heavy Load | Mounting From Top | 15mm | 15mm | 61.4×47×19.4mm | 24mm | 11.38kN | 25.31kN | 1.45kg/m | 0.17kg | C, H, P, SP, UP |
| HDH15CA | HD series, Square Type, Heavy Load | Mounting From Top | 15mm | 15mm | 61.4×34×23.7mm | 28mm | 11.38kN | 25.31kN | 1.45kg/m | 0.18kg | C, H, P, SP, UP |
| HDW15CB | HD series, Flange Type, Heavy Load | Mounting From Bottom | 15mm | 15mm | 61.4×47×19.4mm | 24mm | 14.7kN | 23.47kN | 1.45kg/m | 0.17kg | C, H, P, SP, UP |
| EDW15SA | ED series, Flange Type, Medium Load | Mounting From Top | 15mm | 12.5mm | 40.1×52×19.5mm | 24mm | 5.35kN | 9.4kN | 1.25kg/m | 0.12kg | C, H, P, SP, UP |
| EDW15CA | ED series, Flange Type, Heavy Load | Mounting From Top | 15mm | 12.5mm | 56.8×52×19.5mm | 24mm | 7.83kN | 16.19kN | 1.25kg/m | 0.21kg | C, H, P, SP, UP |
| EDW15SB | ED series, Flange Type, Medium Load | Mounting From Bottom | 15mm | 12.5mm | 40.1×52×19.5mm | 24mm | 5.35kN | 9.4kN | 1.25kg/m | 0.12kg | C, H, P, SP, UP |
| EDW15CB | ED series, Flange Type, Heavy Load | Mounting From Bottom | 15mm | 12.5mm | 56.8×52×19.5mm | 24mm | 7.83kN | 16.19kN | 1.25kg/m | 0.21kg | C, H, P, SP, UP |
| EDH15SA | ED series, Square Type, Medium Load | Mounting From Top | 15mm | 12.5mm | 40.1×34×19.5mm | 24mm | 5.35kN | 9.4kN | 1.25kg/m | 0.09kg | C, H, P, SP, UP |
| EDH15CA | ED series, Square Type, Heavy Load | Mounting From Top | 15mm | 12.5mm | 56.8×34×19.5mm | 24mm | 7.83kN | 16.19kN | 1.25kg/m | 0.15kg | C, H, P, SP, UP |
| RDH15CA | RD series, Square Type, Heavy Load, Roller Type | Mounting From Top | 15mm | 16.5mm | 68×34×24mm | 28mm | 11.3kN | 24kN | 1.8kg/m | 0.2kg | H, P, SP, UP |
| RDW15CC | RD series, Flange Type, Heavy Load, Roller Type | Mounting From Top or Bottom | 15mm | 16.5mm | 68×47×20mm | 24mm | 11.3kN | 24kN | 1.8kg/m | 0.22kg | H, P, SP, UP |
Shared Rail Parameters
Although each 15mm model has different block dimensions and load ratings, the main rail parameters can be summarized as follows.
| Rail Width | 15mm |
| Maximum Rail Length | 4000mm |
| Material | S55C |
| Pitch P | 60mm for HD and ED series; 30mm for RD series |
| Distance to End Es | 20mm |
| Recirculator Material | PA6 for HD / ED series; PA66 for RD series |
How to Choose Between HD, ED and RD 15mm Linear Guide Rails
Instead of choosing only by the rail width, buyers should compare the series, block type, mounting method, assembly height and load rating. The 15mm size can be used in different structures, but the suitable model depends on whether the machine needs a lower profile, a flange mounting surface, a square block, or higher rigidity.
| Series | Main Direction | Typical 15mm Models | Selection Note |
|---|---|---|---|
| HD Series | Heavy-load ball guideway | HDW15CA, HDH15CA, HDW15CB | Suitable when the machine needs higher load capacity and a standard heavy-load structure. |
| ED Series | Low-profile ball guideway | EDW15SA, EDW15CA, EDW15SB, EDW15CB, EDH15SA, EDH15CA | Suitable for compact machines where lower rail height and shorter block length are important. |
| RD Series | Roller-type guideway | RDH15CA, RDW15CC | Suitable when the 15mm rail size is required but higher rigidity is needed than a standard ball-type structure. |
Block Type and Mounting Options
DLY 15mm linear guide rails are available with flange-type and square-type blocks. Different mounting methods are available depending on the selected model. This is important for replacement projects because the block shape and mounting direction affect whether the new guideway can fit the original machine structure.
Flange Type Block
Available in HDW, EDW and RDW models. The wider block body provides a larger mounting surface.
Square Type Block
Available in HDH, EDH and RDH models. It is suitable for compact structures where block width needs to be controlled.
Top / Bottom Mounting
Different models support mounting from top, bottom, or both directions. Please confirm the original installation method before ordering.
Typical Applications
The 15mm linear guide rail is suitable for machines that need compact installation, stable motion and accurate guidance. Different series can be selected according to the load and rigidity requirement.
When Should You Choose 15mm Linear Guide Rail?
A 15mm linear guide rail is usually selected when the machine needs a balance between compact size and stable linear motion. It is smaller than 20mm or 25mm rail sizes, but still provides multiple load and block options through HD, ED and RD series.
Selection Tip
Choose ED series when installation height is limited. Choose HD series when a standard heavy-load ball guideway is required. Choose RD series when a 15mm rail size is needed but higher rigidity is preferred.
Information Needed Before Quotation
To help DLY quote the correct 15mm linear guide rail, please provide the model, rail length, block quantity and installation requirements. For replacement projects, photos or drawings are recommended.
Product: 15mm linear guide rail
Preferred model: HDW15CA / HDH15CA / HDW15CB / EDW15SA / EDW15CA / EDW15SB / EDW15CB / EDH15SA / EDH15CA / RDH15CA / RDW15CC
Rail length: ____ mm
Quantity of rails: ____ pcs
Blocks per rail: ____ pcs
Block type: flange / square / roller type / old model: ____
Mounting method: top mounting / bottom mounting / top or bottom mounting
Application: automation / CNC / laser machine / packaging / measuring equipment / replacement / other
Special requirement: accuracy / preload / cutting / matched set / packaging / other
Related Linear Guide Products
If your machine needs a different rail size or guideway structure, you can also compare the following DLY linear guide products.
For applications requiring a larger rail size and stronger support.
Linear Ball Guide
For ball-type profile rail and carriage block systems. RD Roller Guideway
For roller-type guideways with higher rigidity requirements.
Contact DLY for 15mm Linear Guide Rail
Send your rail length, block quantity, model number, drawing or application requirement to DLY. We can help confirm the suitable 15mm linear guide rail model according to your machine structure and installation needs.
WhatsApp: +86 166 0578 8856 Email: dlyexport2@dlybearing.com
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