Rigaku Americas -- Products -- Vacuum products -- Metric RMS models -- Solid shaft, water cooled

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-F1-W series

RMS-BS-W series

RMS (metric) series: Water-cooled solid shaft rotary feedthroughs

Magnetic fluid sealing for high vacuum and other critical process applications

Ferrofluidics direct replacements

RMS-F1-W style: Metric solid shaft, flange mount, water cooled
RMS-BS-W style: Metric solid shaft, nose mount, water cooled

RMS-F1-W series: Metric solid shaft, flange mount, water cooled

Bearing location

Shaft end shape

Fittings for connecting cooling water pipe are provided

Model	F1-6W		F1-10W		F1-12W		F1-20W
Product No.	10C-9020-L020		10C-9020-L030		10C-9020-L040		10C-9020-L050
Transmission torque	1.6 N-m		8 N-m		13 N-m		60 N-m
Max speed (rpm)	15000		12000		10000		7000
A (mm)	6	-0.010 -0.022	10	-0.013 -0.028	12	-0.016 -0.034	20	-0.020 -0.041
B (mm)	48		62		82		78
C (mm)	6		8		8		10
D (mm)	30		50		71		59
E (mm)	20		50		37		36
F (mm)	60		70		88		114
G (mm)	36		40		60		62
H	4- φ 5.4 PD50		6- φ 6.7 PD58.7		4- φ 6.5 PD74		8- φ 8.5 PD92.2
I (mm)	15		18		21		24
J	2-Rc1/8		2-Rc1/8		2-Rc1/8		2-Rc1/8
P (mm)	30		40		40		70
Q (mm)	2.7		5.0		5.0		5.0
X (mm)	37.5		59		83.5		74
Y (mm)	40		52.5		67.5		63
Shaft end shape	L		M		M		M
a (mm)	10		20		30		32
b (mm)	0.5		1.8		2.5		3.5
c (mm)	—		3	+0.030 0	4	+0.030 0	6	+0.030 0
O-ring (fluororubber)	S30		V40		V40		V70
Bearing type	636		6200		6301		6004

RMS-BS-W series: Metric solid shaft, nose mount, water cooled

Bearing location

Fittings for connecting cooling water pipe are provided

Model	BS-12W		BS-20W
Product No.	10C-9020-H010		10C-9020-H020
Transmission torque	13 N-m		60 N-m
Max speed (rpm)	10000		7000
A (mm)	12	-0.016 -0.034	20	-0.020 -0.040
B (mm)	90		90
C (mm)	38		38
D (mm)	33		36
E (mm)	38		36
G (mm)	60		62
H	M2 × P1.5		M40 × 1.5
I (mm)	29		32
J	2-Rc1/8		2-Rc1/8
P (mm)	40		50
Q (mm)	5.0		4.1
X (mm)	83.5		85
Y (mm)	67.5		69
Shaft end shape	M		M
a (mm)	30		32
b (mm)	2.5		3.5
c (mm)	4	+0.030 0	3	+0.030 0
O-ring (fluororubber)	V40		G50
Bearing type	6301		6004
Nut U / R (mm)	60 / 6		54 / 12
Washer T / S (mm)	60 / 2		54 / 3

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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