Searching for a reliable and cost-effective replacement for your Deublin 902 Series rotary union? You’ve come to the right place. Our precision-engineered rotary joints deliver a seamless, high-performance alternative, providing the same quality and reliability you expect at a more competitive price.
The Deublin 902 Series rotary union is a multi-passage mechanical device used primarily to transfer fluid—such as coolant, MQL, or air—from a stationary source to a rotating component, most commonly the spindle of a CNC machine. Its design is crucial for high-speed machining operations, as it enables the continuous and efficient delivery of fluid to the cutting tool, thereby helping to cool, lubricate, and clear chips.
Our rotary joints handle the high speeds and pressures typical in modern machining, ensuring a leak-free seal and long-term, dependable operation. 
Closed seal, automatic line, or similar applications
| Rotor connection A | Rotor connection F | Rotor connection H | Rotor positioning circle I | Rotor positioning circle M | Spindle end X | Spindle end Y | Spindle end Z | Torque |
|---|---|---|---|---|---|---|---|---|
| 5/8"-18 UNF | 9/16" | 15/16" | 0.6555"/0.6553" | 3/16" | 0.6560"/0.6556" | 9/32" | 13/16" | 35 Nm |
| 5/8"-18 UNF | 9/16" | 15/16" | 0.6249"/0.6246" | 3/32" | 0.6254"/0.6250" | 3/16" | 9/16" | 35 Nm |
| M16Ă—1.5 | 11 | 24 | 17.993/17.988 | 5 | 18.000/17.995 | 8.5 | 17 | 35 Nm |
| M16Ă—1.5 | 11 | 24 | 16.025/16.020 | 5 | 16.037/16.027 | 7 | 17 | 35 Nm |
| M14Ă—1.5 | 12 | 24 | 14.494/14.486 | 5 | 14.508/14.500 | 7 | 18 | 25 Nm |
| M12Ă—1.25 | 11 | 24 | 13.994/13.989 | 5 | 14.005/14.000 | 7 | 15 | 15 Nm |
| M12Ă—1/M12Ă—1.25 | 13 | 15 | 12.994/12.989 | 6 | 13.005/13.000 | 9 | 23 | 15 Nm |
| M10Ă—1 | 11 | 17 | 10.994/10.989 | 5 | 11.008/11.000 | 5.2 | 15 | 10 Nm |
| M8Ă—1 | 12.5 | 15 | 8.995/8.991 | 3.5 | 9.006/9.000 | 6 | 18 | 4 Nm |
Opting for our 902 series rotary union means investing in a product that combines top-tier performance with exceptional value. We have meticulously engineered our units to serve as a direct, drop-in replacement for the Deublin 902 Series, ensuring a hassle-free installation with no need for complex modifications.
As a professional manufacturer and exporter of high-speed rotary unions, we are dedicated to delivering products that meet the highest standards of quality and performance. Our commitment to engineering excellence, coupled with our competitive pricing, makes us the ideal partner for your industrial component needs.
Ready to enhance your machining operations with a high-performance, cost-effective solution? Contact us today to learn more about our 902 series rotary unions and receive a detailed quote. Our team is ready to help you find the perfect rotary union replacement for your application.
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