95.250.021.3.0 Spindle Swivel Joint 1K-GD-A OTT-JAKOB Genuine

Core Engineering Profile

• The 95.250.021.3.0 is a premium OTT-JAKOB 1K-GD-A series rotary union.
• Engineered for high-speed spindle integration, this 95.250.021.3.0 model features a GD Axial Connection.
• It utilizes advanced hybrid bearing technology to withstand extreme rotational velocities.
• The unit supports multi-media transfer including coolant, air, and minimum volume lubrication.
• Designed with a closed sealing surface, the 95.250.021.3.0 allows for reliable dry operation phases.

Technical Data & Performance Matrix

• Brand: OTT-JAKOB
• Model: 95.250.021.3.0
• Series: 1K-GD-A (Axial Design)
• Max Spindle Speed: 36,000 min⁻¹
• Max Coolant Pressure: 80 bar
• Cleaning Air (n=0): 10 bar
• Compressed Air (n<10k): 5 bar
• Media Purity: ISO 4406 -/17/14
• Filtration Grade: < 50µm
• Bearing Type: Hybrid (Ceramic/Steel)

Diagnostic Capabilities & Equipment Suitability

• Leakage Monitoring: Features a dedicated drainage port for early detection of seal face wear.
• Thermal Stability: Hybrid bearings minimize heat expansion, protecting the 95.250.021.3.0 during 36,000 RPM cycles.
• Compatible Equipment: Primarily used in high-precision motorized spindles like Kessler, Step-Tec, and GMN.
• Application Scenarios: High-speed milling centers, aerospace alloy machining, and automotive powertrain production.

Global PLC Spare HUB's Insight

• The 95.250.021.3.0 stands out for its "Dry-Run" capability, a critical feature for engineers.
• Unlike standard unions, the 1K-GD-A prevents seal damage during air-only cooling cycles.
• Integrating the 95.250.021.3.0 ensures consistent pressure delivery, which is vital for tool clamping reliability.

Procurement & Logistics Strategy

• Dispatch Window: Guaranteed shipping within 24 to 48 hours from stock.
• Express Logistics: Global priority delivery via FedEx, UPS, and DHL.
• Warranty Policy: Includes a full 12-month technical warranty against manufacturing defects.
• Quality Assurance: Every 95.250.021.3.0 is inspected for axial run-out before dispatch.

Professional FAQ & Selection Guide

• What is the primary benefit of the "Axial Connection" in this model?
• The axial design allows media to enter directly through the center of the spindle shaft, reducing radial vibration.
• Why is the ISO 4406 -/17/14 standard mandatory for the 95.250.021.3.0?
• High-speed seals are sensitive to micro-particles; strictly adhering to filtration prevents immediate seal scoring.
• Can I replace a radial entry union with this axial 95.250.021.3.0 unit?
• No, these are not interchangeable without significant spindle drawbar and housing modifications.
• What does "Closed Sealing Surface" mean for maintenance?
• It means the seal faces remain in contact, preventing internal contamination during periods of dry operation.
• How do I ensure the longest service life for my OTT-JAKOB union?
• Always ensure the air pressure does not exceed 5 bar when the spindle is rotating above 10,000 RPM.

Tags

PDF

• Download PDF