Rotating Field Tooth Clutch

RFTC Series

Rotating Field Tooth Clutch

3.1″ to 9.7″ diameter; 1.4″ to 4.75” length
Bore sizes from 0.8″ to 2.7″
Static torque from 40 to 5200 lb-ft
2500 to 8000 RPM max speed
Operates both dry and in oil
Modified designs and customized assemblies available

Available Downloads

Resources

Questions? (607) 732-2030

Performance / Mechanical Specifications	RFTC Series — Model Size
		320	375	450	525	630	760	895	1065
Torque Rating (Static)	lb-ft	Model: 320 40	Model: 375 80	Model: 450 160	Model: 525 320	Model: 630 650	Model: 760 1300	Model: 895 2600	Model: 1065 5200	Model:
	(Nm)	Model: 320 (54.2)	Model: 375 (108.5)	Model: 450 (216.9)	Model: 525 (433.9)	Model: 630 (881.3)	Model: 760 (1762.6)	Model: 895 (3525.1)	Model: 1065 (7050.2)	Model:
Recommended Max Speed	rpm	Model: 320 8000	Model: 375 7500	Model: 450 7000	Model: 525 6500	Model: 630 6500	Model: 760 4500	Model: 895 3500	Model: 1065 2500	Model:
Body Diameter	in	Model: 320 3.06	Model: 375 3.46	Model: 450 4.13	Model: 525 4.81	Model: 630 5.78	Model: 760 7.00	Model: 895 8.22	Model: 1065 9.70	Model:
	(mm)	Model: 320 (77.72)	Model: 375 (87.88)	Model: 450 (104.90)	Model: 525 (122.17)	Model: 630 (146.81)	Model: 760 (177.80)	Model: 895 (208.79)	Model: 1065 (246.38)	Model:
Overall Length (ref)	in	Model: 320 1.41	Model: 375 1.62	Model: 450 1.92	Model: 525 2.25	Model: 630 2.70	Model: 760 3.14	Model: 895 3.94	Model: 1065 4.75	Model:
	(mm)	Model: 320 (35.81)	Model: 375 (41.45)	Model: 450 (48.77)	Model: 525 (57.15)	Model: 630 (68.58)	Model: 760 (79.76)	Model: 895 (100.08)	Model: 1065 (120.65)	Model:
Mounting Adapter Bore – Min	in	Model: 320 1.000	Model: 375 1.000	Model: 450 1.250	Model: 525 1.375	Model: 630 1.625	Model: 760 2.000	Model: 895 2.500	Model: 1065 2.750	Model:
	(mm)	Model: 320 (25.400)	Model: 375 (25.400)	Model: 450 (31.750)	Model: 525 (34.925)	Model: 630 (41.275)	Model: 760 (50.800)	Model: 895 (63.500)	Model: 1065 (69.850)	Model:
Mounting Adapter Bore – Max	in	Model: 320 1.690	Model: 375 2.000	Model: 450 2.340	Model: 525 2.760	Model: 630 3.320	Model: 760 4.120	Model: 895 5.000	Model: 1065 5.875	Model:
	(mm)	Model: 320 (17.5260)	Model: 375 (50.800)	Model: 450 (59.436)	Model: 525 (70.104)	Model: 630 (84.328)	Model: 760 (104.648)	Model: 895 (127.000)	Model: 1065 (149.225)	Model:
SolidWorks Model		Model: 320 3D	Model: 375 3D	Model: 450 3D	Model: 525 3D	Model: 630 3D	Model: 760 3D	Model: 895 3D	Model: 1065 3D	Model:

RFTC Operation:

With the rotating field design, the magnet body rotates with the machine shaft. Power is supplied through electrical brush contacts and slip rings. When current is applied to the coil, a magnetic field is created attracting the armature to the magnet. As the teeth engage, torque is transmitted.

“When the current is turned off, the armature slides on the splined output plate adapter to disengage from the magnet body. Springs pull on the armature to assist.”