Description
The Okuma THK YH3952 is a high-precision linear motion guide unit manufactured by THK—a global leader in industrial motion control and automation components.Designed for use in advanced CNC machine tools,this module ensures smooth,accurate,and durable linear movement in high-load environments.
As part of the THK family of linear systems,the Okuma THK YH3952 delivers exceptional rigidity and load-bearing capacity,making it ideal for demanding machining applications where precision and reliability are non-negotiable.
Application Scenarios
A major aerospace manufacturing facility in Japan was experiencing frequent tool positioning errors on its Okuma CNC lathes,leading to increased scrap rates and rework time.The root cause was traced back to worn-out linear guides that couldn’t maintain the required accuracy under heavy cutting loads.
After upgrading to the Okuma THK YH3952,the system’s axis movement became noticeably smoother and more precise.The high-accuracy ball recirculation design and preloaded structure eliminated backlash and vibration,resulting in tighter tolerances and improved surface finish on machined parts.
This real-world example demonstrates how the Okuma THK YH3952 enhances machine performance and contributes directly to better production quality—especially in high-precision industries like aerospace,automotive,and mold-making.
Parameter
Main Parameters Value/Description
Product Model Okuma THK YH3952
Manufacturer THK Co.,Ltd.
Product Category Linear Motion Guide Unit
Type High Precision Ball Guide(CNC Machine Series)
Rail Length Customizable(standard length varies per application)
Slider Type Double-row ball type with preloading
Load Capacity(Dynamic)Up to 120 kN(varies by rail and slider combination)
Load Capacity(Static)Up to 85 kN
Accuracy Class P0/P1(ultra-high precision grade)
Mounting Holes Pattern Standardized for CNC machine compatibility
Lubrication Method Grease lubricated(can be upgraded to oil-fed systems)
Material Chrome steel with hardened treatment
Operating Temperature Range-10°C to+80°C
Technical Principles and Innovative Values
Innovation Point 1:Preloaded Dual-Ball Row Design
The Okuma THK YH3952 features a dual-ball row configuration with preloading,which significantly improves rigidity and eliminates play between the rail and slider.This design allows the unit to handle both radial and moment loads with minimal deflection.
Innovation Point 2:Ultra-High Precision Grade(P0/P1)
Unlike standard linear guides,this model meets the strictest ISO and JIS precision standards,making it suitable for ultra-precise machining tasks such as mirror milling and micro-cutting operations.
Innovation Point 3:Optimized Ball Recirculation System
THK’s proprietary ball return system minimizes friction and noise while ensuring consistent motion performance over long-term operation.This translates into longer service life and reduced maintenance frequency.
Innovation Point 4:Modular Compatibility with Okuma Machines
Engineered specifically for integration with Okuma CNC machines,the Okuma THK YH3952 offers plug-and-play installation with minimal alignment adjustments,saving setup time and reducing downtime during replacements.
Innovation Point 5:Corrosion-Resistant Surface Treatment
Coated with anti-rust materials and sealed against contaminants,this guide unit maintains peak performance even in challenging workshop conditions involving coolants,dust,and metal chips.
Application Cases and Industry Value
One of the most impactful deployments of the Okuma THK YH3952 was at a German automotive component factory that produces high-tolerance transmission parts.Prior to using this module,their CNC machines suffered from inconsistent axis tracking,which led to out-of-spec gear profiles.
After retrofitting with the Okuma THK YH3952,the factory saw an immediate improvement in machining accuracy,with positional deviation reduced to less than 0.002 mm.As a result,rejection rates dropped by nearly 40%,and overall machine uptime increased significantly.
Another successful implementation occurred at a Japanese mold-making plant,where the Okuma THK YH3952 was used in a 5-axis machining center for die-sinking EDM processes.The high stiffness and low-friction characteristics of the guide allowed for faster feed rates without compromising surface integrity.
These case studies highlight the critical role the Okuma THK YH3952 plays in enhancing machining performance,reducing tool wear,and increasing profitability across various sectors.
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