The HG15 series linear guide rail is a core component for precision linear transmission, widely applied in industrial automation, CNC machine tools, 3D printing equipment, robotics and other fields. With a rail width of 15 mm and a high-precision recirculating ball structure, it delivers high rigidity, high accuracy and low-friction linear motion, perfectly suited for equipment with limited installation space.
The system consists of an HGR15 rail and matching sliders. The built-in recirculating balls roll along the rail raceway. Its rolling friction coefficient is only 1/50 of traditional sliding guides, which cuts driving energy consumption and achieves micron-level positioning accuracy
Core Features Advantages
Compact Structure
The rail width is 15 mm, and the standard slider height is about 28 mm. Custom rail lengths from 100 mm to 3000 mm are available, ideal for small-sized precision equipment.
Multiple Accuracy Grades
Three grades are optional: C (normal), H (high) and P (precision). The running parallelism reaches micron level to meet diverse precision requirements.
Four-direction Equal Load Capacity
Adopting gothic arch groove and 45° four-point contact design, it bears equal loads in radial, counter-radial and lateral directions, adapting to complex loading conditions.
Low Friction & Low Noise
Precision ground raceways greatly reduce running resistance. The operation is smooth and quiet without stick-slip phenomenon.
Good Interchangeability & Easy Maintenance
Sliders and rails of the same series are interchangeable to reduce spare parts cost. Each slider is equipped with a lubrication nipple for daily maintenance.
Diversified Sealing Options
Standard seals, double seals and scrapers are optional to block dust and debris, extending the service life.
Durable Material & Rust-proof Option
Made of high-quality bearing steel, the surface hardness reaches HRC 58–62 after hardening treatment. Stainless steel versions can be customized for humid and corrosive working environments.
| Feature Aspect | Description & Advantage |
|---|---|
| Compact Size Design | Rail width 15 mm, block height approx. 28 mm, suitable for small equipment with limited space; supports custom lengths from 100 mm to 3000 mm. |
| High Accuracy Grade | Offers three accuracy grades: C (normal), H (high), and P (precision). Running parallelism reaches micron level, meeting different precision requirements. |
| Four-Directional Equal Load | Gothic arch groove four-point contact design with a 45° contact angle provides identical load ratings in radial, counter-radial, and lateral directions, adapting to complex loading conditions. |
| Low Friction, Low Noise | Rolling friction structure with precision ground raceways results in low friction resistance, smooth and quiet operation. Extremely low starting torque eliminates the "stick-slip" phenomenon. |
| Interchangeability & Easy Maintenance | Blocks and rails are interchangeable within the same series, reducing spare parts inventory costs. Blocks come with built‑in lubrication nipples for convenient lubrication maintenance. |
| Diverse Sealing Options | Provides various sealing types such as standard seals, double seals, and scrapers, effectively preventing dust and chips from entering the raceway, extending service life. |
| Long Life & Durability | Rails and blocks are made of high‑quality bearing steel (GCr15/SUJ2), carburized and hardened to a surface hardness of HRC 58–62, delivering an exceptionally long service life. |
| Rust Prevention Option | Standard material is bearing steel (chrome 15). Stainless steel material (HGW series) can be customized for humid or corrosive environments. |
Model Classification
The HG15 series includes the following common models:
| Model | Features | Application Scenarios |
|---|---|---|
| HGH15CA | Standard block, flanged type, low profile | General automation equipment, CNC machine tools |
| HGW15CA / HGW15CC | Wide block, larger load-bearing area | Applications requiring higher anti-moment capacity |
| HGL15CA | Long block, more bolt holes | Applications requiring higher rigidity and load capacity |
| HGR15 | Rail body, used together with the above blocks | Rail part for all HG15 series systems |
Selection Tip: HG15/HGW15/HGL15 blocks must be used with the HGR15 rail. Ensure model matching.
Technical Specifications
| Parameter | Value / Description |
|---|---|
| Rail Width | 15 mm |
| Rail Length Range | 100 mm – 3000 mm (customizable) |
| Block Height (HGH15CA) | Approx. 28 mm |
| Block Width (HGH15CA) | Approx. 47 mm |
| Accuracy Grade | C (Normal), H (High), P (Precision) |
| Material | Bearing steel (Chrome 15 / GCr15 / SUJ2) |
| Surface Hardness | HRC 58–62 |
| Seal Type | Standard seals, double seals, scrapers |
| Lubrication Method | Grease lubrication (built‑in nipple) |
Selection Suggestions
- Determine rail length: Select or customize within the range of 100–3000 mm based on the effective stroke requirement of the equipment.
- Choose accuracy grade: Select Grade C for general machinery, or Grade H/P for high-precision positioning applications.
- Confirm block model: Select HGH15CA for standard loads, or HGW15CA/CC when high anti-moment capacity is required.
- Consider environmental factors: For humid or corrosive environments, choose the stainless steel HGW series.
- Confirm sealing requirements: For dusty environments, double seals or scraper configurations are recommended.
Specifications
Our Advantage
Ultra-Compact Design with High Load Density
Featuring a slim profile (15mm width), our HG15 bearing achieves 30% higher load capacity per unit volume compared to standard linear bearings. Its space-saving design enables integration into compact medical devices, precision instruments, and robotic joints where dimensional constraints are critical.
Corrosion-Free Operation
Utilizing 440C stainless steel balls and zinc-nickel plated outer rings, the bearing resists corrosion in humid, chemical, or washdown environments (passes 500-hour salt spray test), making it ideal for food processing, pharmaceutical, and marine applications.
Maintenance-Free Longevity
Patented graphene-enhanced lubricant embedded in the composite cage provides continuous lubrication for over 10,000 km of travel, eliminating relubrication needs and reducing lifetime maintenance costs by 60%.
Low Noise Signature
With noise levels below 35 dB during operation, the bearing meets medical and office equipment quietness standards. Precision-grade G3 balls and raceway polishing ensure whisper-smooth motion for noise-sensitive applications.
Multi-Mounting Orientation Flexibility
Uniquely designed load paths allow optimal performance in any mounting orientation (horizontal, vertical, inverted), with less than 5% variation in load capacity across configurations, simplifying mechanical design constraints.
Temperature Resilience
Our service
Competitive advantage
The company conducted a competitive advantage analysis to identify its strengths and weaknesses compared to its rivals.
Rapid Prototyping Program
- 72-hour sample service
-Performance validation testing under simulated operating conditions
01
Extended Warranty Options
- Standard 24-month warranty extendable to 60 months
- Failure analysis and root cause investigation services
02
Global Logistics Optimization
- Kitting services combining bearings with related components
- Emergency 24-hour shipping for critical production line needs
03
Technical Training Programs
- Quarterly webinars on bearing maintenance best practices
- On-site installation training for production teams
- Troubleshooting guides augmented with AR assistance
04
Sustainability Services
- Recycling program for end-of-life bearings
- Remanufacturing services extending product life by 200%
05
FAQ
Q1: What electrical insulation options are available?
A: We offer:
- Ceramic-coated outer rings (withstands 1000V DC)
- Composite housing versions (full electrical isolation)
- Hybrid ceramic balls with polymer races
- Custom dielectric strength testing reports
Q2: How do you ensure consistency in high-volume orders?
A: Through:
- Statistical process control with CpK > 1.67
- Batch-to-bearance matching within 2μm
- 100% automated optical inspection
Q3: What makes your bearings suitable for robotics?
A: Key robotic features:
- Zero-backlash designs
- High stiffness-to-weight ratio
- Compatibility with collaborative robot safety standards
- Cobot-optimized emergency stop performance
Q4: Do you provide failure analysis services?
A: Our lab offers:
- Root cause analysis with electron microscopy
- Lubricant degradation testing
- Wear pattern interpretation
- Preventive maintenance recommendations
Hot Tags: hg15 linear bearing, China hg15 linear bearing manufacturers, suppliers, factory, telescoping linear rail, hgr20 linear guide rail, square linear rails, Eg15 Linear Bearing, sbr 20mm linear rail, mgn7h linear rail
