Union, Closed-Seal, 5/8" UNF RH, 0.625" pilot, 3/8" NPT

1116-012-173

  • Single passage for coolant or MQL
  • Closed seals for transfer line and similar applications
  • Full-flow design has no obstructions to trap swarf or debris
  • Bearing-supported with threaded rotor for easy installation
  • Deep groove radial ball bearings for smooth operation
  • Labyrinth system and large vents to protect ball bearings
  • Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
  • Anodized aluminum housing and stainless steel rotor resist corrosion

Dimensions

Selected dimensions for this product
A
5/8"-18 UNF RH
B
3/8"-18 NPT
C
43.7 mm
D1
103.2 mm
E
26.37 mm
F
12.7 mm
G
8.7 mm
H
24 mm
I
15.872 mm
J
71.3 mm
K
3/8"-18 NPT
P
Non-Threaded
X
2.4 mm

Operating Specifications

Recommended operating limits for pressure and speed
Media
Coolant
Rotor Connection
5/8"-18 UNF RH
Supply Connection
3/8"-18 NPT
Coolant Max. Flow
81.8 l/min
Coolant Max. Pressure
69 bar
Coolant Max. Temperature
71 °C

Documents & Resources

Installation Guide
Installation Guide for Rotor-Mounted unions
Interface Drawing
Interface Control drawing for 1116-012-173
Operating Manual
Operating Manual for "Closed Seal" unions for machine tools