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Feedthroughs

Metric RMS models

Magnetic fluid (ferrofluid) fills a small annular gap between a rotating shaft and a stationary magnetic pole piece. The gap is part of a high-energy magnetic circuit which includes the shaft and pole piece. The very large magnetic flux in the gap exerts a force on the fluid, holding it in place against pressure difference from atmosphere to vacuum, yielding a dynamic rotary seal in which there is no solid friction. Therefore, very long operating lifetimes are achieved.

Because the magnetic fluid has very low vapor pressure, it remains permanently in place for the entire lifetime of the seal, and does not contaminate the system. Some applications have special requirements (high temperature, highly reactive gases) which can be satisfied by selection of the optimum fluid from our family of fluid materials.

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RMS-HS series

RMS-F-HS series

RMS (metric) series: Hollow shaft rotary feedthroughs

Magnetic fluid sealing for high vacuum and other critical process applications

Direct Ferrotec replacements

RMS-HS series: Metric hollow shaft, cartridge mount
RMS-HS-C series: Metric hollow shaft, cartridge mount with clamp type
RMS-F-HS series: Metric hollow shaft, flange mount
RMS-F-HS-C series: Metric hollow shaft, flange mount with clamp

RMS-HS series: Metric hollow shaft, cartridge mount

Bearing location

Shape of end shaft

If shaft clamping is required, add "-C" to the end of the Model

Model		HS-10		HS-12		HS-20		HS-24		HS-32		HS-38		HS-40		HS-50		HS-75
Product No.		10C-9020- A010		10C-9020- A020		10C-9020- A030		10C-9020- A040		10C-9020- A050		10C-9020- A060		10C-9020- A070		10C-9020- A080		10C-9020- A090
A (mm)		10	+0.015 0	12	+0.018 0	20	+0.021 0	24	+0.021 0	32	+0.025 0	38	+0.025 0	40	+0.025 0	50	+0.025 0	75	+0.030 0
B (mm)		40	-0.009 -0.025	40	-0.009 -0.025	60	-0.010 -0.029	63	-0.010 -0.029	73	-0.010 -0.029	83	-0.012 -0.034	90	-0.012 -0.034	95	-0.012 -0.034	126	-0.014 -0.039
C (mm)		50		50		64		64		64		64		64		82		92
D (mm)		7.5		7.5		9		9		9		9		9		10		10
E (mm)		2.7		2.7		2.7		2.7		2.7		2.7		2.7		2.7		2.7
J (mm)		17		17		28		30		40		50		50		60		90
K (mm)		7.5		7.5		10		9		9		9		9		10		10
L (mm)		2.1		2.1		2.1		2.7		2.7		2.7		2.7		2.7		2.7
P (mm)		24		24		44		46		50		60		60		80		100
Q (mm)		2.7		2.7		2.7		2.7		2.7		2.7		2.7		2.7		2.7
X (mm) Y (mm)		10 31		10 31		11 42		12.5 41		13 40		13 40		13 40		15.5 56		16.5 64.5
O-ring	Flange	S24		S24		S44		S46		S50		S60		S60		S80		S100
	Inner (2cs)	S10		S12		S20		S24		S32		S38		S40		S50		S75
	Outer (2 pcs)	S36		S36		S56		S60		S70		S80		S85		S90		S120
Bearing type		16003		16003		60/28		6006		6908		6910		6910		6912		6818

Product No.		10C-9020- B010		10C-9020- B020		10C-9020- B030		10C-9020- B040		10C-9020- B050		10C-9020- B060		10C-9020- B070		10C-9020- B080		10C-9020- B090
C series	a (mm)	36		38		48		52		58		66		68		86		118
	b (mm)	12		12		15		15		15		15		15		18		21

RMS-F-HS series: Metric hollow shaft, flange mount

Bearing location

Shape of end shaft

If shaft clamping is required, add "-C" to the end of the Model

Model		F1-HS-10		F1-HS-12		F1-HS-20		F1-HS-24		F1-HS-26		F1-HS-32		F1-HS-38		F1-HS-40		F1-HS-50		F1-HS-75
Product No.		10C-9020- C010		10C-9020- C020		10C-9020- C030		10C-9020- C040		10C-9020- C050		10C-9020- C060		10C-9020- C070		10C-9020- C080		10C-9020- C090		10C-9020- C100
A (mm)		10	+0.018 0	12	+0.018 0	20	+0.021 0	24	+0.021 0	26	+0.021 0	32	+0.025 0	38	+0.025 0	40	+0.025 0	50	+0.025 0	75	+0.025 0
B (mm)		—		—		62	-0.010 -0.029	63	-0.010 -0.029	70	-0.010 -0.029	73	-0.010 -0.029	83	-0.036 -0.071	83	-0.036 -0.071	95	-0.012 -0.034	126	-0.014 -0.039
C (mm)		50		50		64		64		64		64		64		64		82		92
D (mm)		—		—		10		10		10		10		10		10		10		10
E (mm)		8		8		10		10		10		10		10		10		10		15
F (mm)		70		70		106		106		120		130		136		136		140		180
G (mm)		42		42		62		63		70		73		83		83		95		126
H (mm)		6- φ 6.7 PD59.8		6- φ 6.7 PD59.8		6- φ 7 PD90		6- φ 7 PD90		6- φ 9 PD100		6- φ 9 PD110		6- φ 9 PD114		6- φ 9 PD114		6- φ 9 PD124		6- φ 11 PD160
J (mm)		17		17		28		30		32		40		50		50		60		90
K (mm)		7.5		7.5		10		9		9		9		9		9		10		10
L (mm)		2.1		2.1		2.1		2.7		2.7		2.7		2.7		2.7		2.7		2.7
P (mm)		42		42		70		70		75		85		90		90		100		135
Q (mm)		2.7		2.7		2.7		2.7		4.1		4.1		2.7		2.7		2.7		2.7
X (mm) Y (mm)		10 31		10 31		11 42		12.5 41		13.5 39		13 40		13 40		13 40		15.5 56		16.5 64
O-ring	Flange	S42		S42		S70		S70		G75		G85		S90		S90		S100		S135
	inner (2 pcs)	S10		S12		S20		S24		S26		S32		S38		S40		S50		S75
Bearing type		16003		16003		60/28		6006		60/30		6908		6910		6910		6912		6818

Product No.		10C-9020- D010		10C-9020- D020		10C-9020- D030		10C-9020- D040		10C-9020- D050		10C-9020- D060		10C-9020- D070		10C-9020- D080		10C-9020- D090		10C-9020- D100
C series	a (mm)	38		38		48		52		52		58		66		68		86		118
	b (mm)	12		12		15		15		15		15		15		15		18		21

To select a feedthrough for a new application, locate the table for the appropriate shaft mounting style (through-hole, flanged, or bore mount). Dimensional and performance information is tabulated and keyed to an outline drawing.

To identify the Magnaseal direct replacement for a Ferrofluidics Corp. product, locate the FFC Part Number/Model Number at the bottom of each column of tabulated data. For FFC products not listed, or for application engineering assistance or information beyond the scope of the tabulated data, please contact Rigaku Vacuum Products.

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