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DI Series Aluminum Parallel Line Coupling | High-Precision Encoder Coupler | Yiheda Equivalent

Model Number
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Product Description

Precision Engineered for High Rotation Accuracy

The DI Series Parallel Line Coupling is a premium, integrated coupling designed for high-performance encoders and precision automation. Manufactured from aviation-grade aluminum alloy, this winding-style clamping coupling offers a stable, zero-backlash connection that is essential for synchronized motion control and high-speed feedback systems.

 

Why the DI Series is the Professional Choice

  • H7 Standard Bore Precision: Our internal bores are strictly machined to H7 tolerance, ensuring superior concentricity and a powerful, secure grip on the shaft.

  • Superior Vibration Absorption: The optimized parallel line winding structure provides excellent elasticity, effectively absorbing vibrations, eccentricities, and angular deviations.

  • Aviation-Grade Aluminum Alloy: Built with high-strength integrated material, it offers a lightweight solution with low rotational inertia, perfect for rapid-response applications.

  • Seamless Yiheda Alternative: Specifically designed to meet or exceed the performance of Yiheda (怡合达) elastic couplings, making it an ideal choice for high-end maintenance and local supply chain optimization.

  • Zero-Backlash Reliability: The integrated structure eliminates all mechanical play, ensuring precise positive and negative rotation feedback.

 

Technical Specifications Table

AttributeSpecification Details
SeriesDI Parallel Line (Winding Type)
MaterialHigh-Strength Aviation Aluminum Alloy
Bore ToleranceH7 Precision
StructureIntegrated Clamping Design
CompatibilityDirect Replacement for Yiheda Series
FeaturesZero Backlash, High Elasticity, Anti-vibration
CustomizationSupports Non-standard Sizes & OEM
ModelDimension 1 (mm)Dimension 2 (mm)
DIC-12*18.51218.5
DIC-16*231623
DIC-20*262026
DIC-25*312531
DIC-32*413241
DIC-40*564056
DI-12*18.51218.5
DI-16*231623
DI-17.5*2317.523
DI-20*202020
DI-20*262026
DI-25*252525
DI-25*312531
DI-28.5*3828.538
DI-32*323232
DI-32*413241
DI-40*564056
DI-50*505050
DI-50*715071
DM-15.5*2315.523
DM-19.1*19.119.119.1
DM-25.4*25.425.425.4
DM-28.6*28.628.628.6
DM-38.1*38.138.138.1
DC-19*231923
DC-25*252525
DC-25*322532
DC-38*413841
DC-42*504250
DC-50*505050

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Parallel Line Coupling

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