Union, Closed-Seal, 3/8" NPT RH, In-Shaft
1116-900-902
- 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
A
3/8"-18 NPT RH3/8"-18 NPT RH
B
25.02 mm0.985 "
C
43.8 mm1.724 "
D1
109.1 mm4.295 "
E
29.7 mm1.169 "
F
15.9 mm0.626 "
G
6.35 mm0.25 "
H
24 mm0.945 "
J
93.4 mm3.677 "
P
Non-ThreadedNon-Threaded
Operating Specifications
Media
Coolant, MQLCoolant, MQL
Rotor Connection
3/8"-18 NPT RH 3/8"-18 NPT RH
Supply Connection
25.02 mm0.985 "
Coolant Max. Flow
81.8 l/min21.6 GPM
Coolant Max. Pressure
69 bar1000 psi
Coolant Max. Temperature
71 °C160 °F
MQL Max. Flow
2040 l/min72.1 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Rotor-Mounted unions
Interface Drawing
Interface Control drawing for 1116-900-902
Operating Manual
Operating Manual for "Closed Seal" unions for machine tools