Deublin 902-120-188 Rotary Union Price | High-Performance Air Rotary Joint Replacement

Description

Deublin 902 120 188 Rotary Union: Product Overview

The Deublin 902-120-188 Rotary Union is a precision-engineered rotary joint designed for transferring air or vacuum between stationary and rotating components. Known for its compact design, long service life, and low torque performance, this rotary union is ideal for pneumatic applications requiring reliability and continuous operation.

Our replacement for Deublin 902-120-188 delivers equivalent quality and performance at a more competitive price, making it an excellent alternative for cost-conscious engineers and maintenance teams without sacrificing durability or precision.

Key Features

High-Speed Operation:

Capable of maintaining stable performance at speeds up to 6,000 RPM, ideal for air and vacuum applications.

Single-Passage Design:

Optimized for air transfer in clamping, cooling, or control systems.

Sealed Bearing Construction:

Precision ball bearings ensure smooth rotation and extended service life, even under continuous use.

Leak-Free Sealing Technology:

Equipped with high-quality mechanical seals to prevent air leakage and minimize downtime.

Compact & Lightweight:

Ideal for space-limited setups in automation, packaging, or CNC spindle systems.

Maintenance-Free Design:

Pre-lubricated and sealed bearings eliminate the need for regular maintenance.

Working Principle

The rotary union operates by maintaining a sealed connection between stationary and rotating components.
Compressed air enters through the stationary housing, passes through precision seals, and exits through the rotating shaft—without any leakage.
This enables continuous airflow even while the machinery is rotating, ensuring uninterrupted pneumatic actuation.

Technical Specifications of Deublin 902 120 188 Rotary Union

Quality & Testing

Each Deublin 902-120-188 compatible rotary union undergoes strict quality inspection before shipment:

• Dynamic balance testing

• Air pressure leakage testing

• Bearing precision and torque testing

• Endurance running at rated speed

These procedures guarantee performance equivalent to original Deublin standards and ensure reliability in long-term use.

Applications

The Deublin 902 Rotary Union and its equivalent replacements are widely used in industries where air or vacuum must be transferred to rotating parts. Typical applications include:

• CNC Spindles: Air supply for tool clamping or cooling.

• Automation Systems: Air actuation in rotating machinery.

• Packaging Equipment: Pneumatic control in rotary filling or labeling systems.

• Printing Machines: Air transfer for ink or vacuum-based systems.

• Robotics & Index Tables: High-speed rotary air delivery for motion control.

Price & Availability

Looking for the best price for Deublin 902 Rotary Union?
We offer high-quality replacements directly from the factory, ensuring:

• Competitive pricing without middleman markup

• Fast global delivery

• OEM & customized configurations available

Request a Quote Now to receive detailed pricing and lead time based on your application needs.

Conclusion

The Deublin 902-120-188 Rotary Union (and its high-quality replacement) is the perfect solution for engineers looking for cost-effective, high-speed, and durable rotary air joints. Whether used in automation, CNC machining, or packaging systems, it ensures leak-free operation, minimal maintenance, and long-term reliability.

If you are seeking a trusted Deublin replacement at a factory-direct price, our HS-compatible 902 Rotary Union is your best choice.

Contact us today for a quote and technical consultation tailored to your equipment needs.