Rotary feedthrough with ISO-K flange for high loads and high torques

This rotary feedthrough with an ISO-K flange has been designed for high output torques. Moreover, it is suitable for high radial loads. The shaft is connected using parallel keys.

Technical data

Leakage rate: < 1 x 10^-8 mbar x l/s
Operating temp., non-cooled: -20 bis 90 °C
Operating temperature, cooled: > 90 °C
Pressure differential: up to 1 bar
Vacuum range: up to UHV
Housing: Stainless steel
Shaft: Stainless steel, magnetic
Magnetic fluid: Maintenance-free

Available options

• Housing cooling
• Customer-specific versions

Model	ALMA-M-ISO-K-025-A-U
Part number	1017627
Weight (kg)	4.800
Dimensions (mm)
Shaft diameter, vacuum side	25k6
Shaft diameter, atmospheric side	25k6
Shaft length, vacuum side	62.5
Shaft length, atmospheric side	60.0
Total length	231.0
Length, atmospheric side	168.5
Length, vacuum side	62.5
Total housing length	108.5
Housing length, vacuum side	–
Housing length, atmospheric side	108.5
Housing diameter, vacuum side	–
Housing diameter, atmospheric side	92.0
Length of parallel-key groove	40.0
Distance from parallel-key groove to shaft end	11.0
Width of parallel-key groove	DIN6885-A-8x7x40
Flange diameter	ISO-K DN63
Shaft specification
Max. rotational speed	1,500 min-1
Max. transmittable torque*	110.00 Nm
Friction torque	0.8 Nm
Max. axial load [Fa1]**	300 N
Max. axial load [Fa2]**	300 N
Max. radial load [Fr1]**	500 N
Max. radial load [Fr2]**	500 N

*   The torque calculation is based on mean calculated values.
** The load calculation is based on assumed values, which cover 95 % of applications.
   Individual calculations can be made for borderline applications.