The ball screw coupling, as an important component connecting the servo motor and the ball screw, is specially designed for high-precision transmission. It achieves zero-gap transmission through elastic bodies or rigid structures, while correcting axial misalignment and ensuring the stability and reliability of mechanical systems. It is suitable for small and medium torque transmission systems in multiple fields.
Core Structure
High Precision & Zero Backlash: High-precision design with zero backlash, ensuring positioning accuracy up to ±0.005mm.
High Rigidity & Impact Resistance:Aluminum alloy or stainless steel construction, torque capacity up to 860N·m for heavy-duty applications.
Misalignment Compensation: Absorbs radial (±0.2mm), angular (±1.5°), and axial (±1mm) misalignments to reduce bearing stress.
Longevity & Low Maintenance: Wear-resistant materials and sealed design ensure over 20,000 hours of service life with minimal maintenance.
Split Design: Composed of two metal claw plates and an intermediate elastomer, easy to install and replace.
Strong misalignment compensation capability
Elastic Element: Optional number of plum petals (4/6/8/10/12 petals) with adjustable hardness for different working conditions
Multiple Connection Methods: Supports keyway, expansion sleeve, clamping screw, etc., flexibly adapting to shaft diameters.
Technical Parameters
For couplings, we have many different models to choose from and can also provide non-standard customization. Welcome to consult with drawings or samples. The following are detailed specification and model drawings.
Application Scenarios
After-sales service
Warranty period: 12 months from the date of signature for receipt, covering quality issues of the product itself.
Service content: Free technical consultation, troubleshooting guidance, and free replacement of faulty parts within the warranty period (not caused by human damage)
Product inventory: Sufficient inventory for prompt delivery within 72 hours.
Service scenarios: Product installation and commissioning, usage guidance, fault detection and repair, and handling of returns and exchanges for product quality issues.
Alignment: Use a laser aligner to adjust misalignment (radial ≤0.05mm, angular ≤0.1°).
Torque: Tighten bolts according to the specification to prevent elastomer deformation.
Lubrication: Use lithium-based grease in high-temperature environments, reapply every 500 hours.
Precision: Bellows or diaphragm couplings for high-precision applications.
Load Type: Plum couplings for shock loads, rigid couplings for steady loads.
Environment: Stainless steel for corrosive environments, high-temperature elastomers for extreme heat.
Hengyuan Bearing is an enterprise specializing in the research, manufacture and sale of spherical plain bearings and linear guide products. The company has a 10,000-square-meter factory and advanced production and processing equipment, which provides a strong guarantee for the production of high-quality products.
Professional team
More than 20 technical experts and a professional sales team
7x24 hours delivery
With 2 factories and 50 distribution centers, we offer services in over 200 languages and deliver non-standard customization within two weeks.
FAQ
Q: How do I choose the right type of ball screw coupling?
A: Select based on application requirements:
High-precision scenarios (semiconductor equipment, CNC machines): Prioritize bellows couplings (zero backlash, high rigidity) or diaphragm couplings (stable at high speeds).
Vibration/impact loads (industrial robots): Choose plum couplings (elastomer damping, moderate cost).
High torque, low-precision scenarios: Use rigid couplings (cost-effective, but requires precise alignment).
Q: How does misalignment compensation affect coupling lifespan?
A: Misalignment (radial, angular, axial) increases load on bearings and couplings. If misalignment exceeds the rated compensation range (e.g., radial > 0.2mm), it may cause elastomer wear, diaphragm fatigue, or bellows deformation. Always calibrate with a laser aligner during installation to ensure misalignment is within specifications (recommend a 50% safety margin)
Q: What environments are suitable for different coupling materials?
A:Aluminum alloy: General applications (normal temperature, non-corrosive), lightweight and cost-effective.
Stainless steel (304/316): Suitable for humid, acidic/alkaline, vacuum, or high-temperature environments (semiconductor equipment, medical devices), excellent corrosion resistance.
High-strength steel: Ideal for high-load, high-impact conditions (heavy-duty machines), torque capacity up to 860N·m.
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