Stromag Periflex VN 350 31 G Coupling | Heavy-Duty Elastomeric Drive Coupler

The Stromag Periflex VN 350 31 G is part of the Stromag VN series of torsionally flexible couplings designed for demanding industrial environments. Periflex couplings are widely used in compressor packages, pump drives, generator sets, and heavy machinery where drivetrain protection and vibration control are essential.

The VN series utilizes a high-strength elastomer element mounted between precision-machined metal hubs. This configuration allows torque to be transmitted smoothly while absorbing torsional shock loads generated during startup, shutdown, and fluctuating operating conditions.

The VN 350 31 G configuration is engineered for predictable torsional stiffness, balanced operation, and long service life in continuous-duty applications.

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Key Features and Benefits

• Stromag Periflex VN series coupling

• Torsionally flexible elastomer design

• High torque transmission capability

• Effective vibration and shock load damping

• Compensates for angular, axial, and parallel misalignment

• Protects bearings, shafts, and connected equipment

• Industrial-grade construction for heavy-duty service

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Functional Design and Engineering Advantages

The VN 350 31 G coupling incorporates a durable elastomer ring positioned between robust metal hubs. Torque is transmitted through compression of the elastomer element, reducing metal-to-metal force transfer and minimizing vibration transmission.

This design provides several operational advantages:

• Reduced torsional peak loads

• Lower mechanical noise

• Improved drivetrain smoothness

• Extended bearing and shaft life

• Reduced maintenance frequency

In industrial compressor and engine-driven systems, torsional pulses can cause long-term drivetrain fatigue if not properly controlled. The Periflex elastomer compound is engineered to provide consistent flexibility while maintaining structural integrity under sustained load conditions.

Because Stromag designs Periflex couplings for industrial power transmission, the VN 350 31 G delivers stable torque transmission and reliable vibration isolation in demanding environments.

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Typical Applications

The Stromag Periflex VN 350 31 G Coupling is commonly used in:

• Rotary screw air compressors

• Engine-driven compressor packages

• Industrial pump systems

• Generator sets

• Heavy industrial power transmission assemblies

This coupling is intended for systems specifying the VN 350 31 G configuration.

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Technical Specifications (General)

• Model: VN 350 31 G

• Series: Periflex VN

• Manufacturer: Stromag

• Type: Elastomeric torsionally flexible coupling

• Function: Torque transmission with vibration damping

• Misalignment Capability: Angular, axial, and parallel

• Operating Environment: Industrial power transmission systems

• Maintenance: Lubrication-free; inspect elastomer during routine service

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Why Periflex VN Couplings Are Used in Industrial Drives

Periflex VN couplings are selected when high torque capacity and controlled torsional flexibility are required. This balance reduces stress on connected components and improves overall drivetrain stability under variable load conditions.

Improper coupling selection can result in vibration, mechanical wear, and premature equipment failure. The VN 350 31 G Periflex coupling is engineered to deliver predictable torsional performance and dependable service life in continuous-duty industrial applications.

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Why Choose Stark Industrial Products

Stark Industrial Products supplies industrial-grade drivetrain components built for real-world heavy-duty applications.

• Stromag Periflex coupling supply

• Industrial power transmission components

• Same day shipping on stocked units

• Knowledgeable technical support

If you need assistance confirming hub configuration or compatibility for the VN 350 31 G, our team is ready to help.