Sakai TCFFS Series Precision Spring Coupling

Manufacturer: Sakai Manufacturing Co., Ltd.
Model: TCFFS Series

Feature

They unitized and launched the plate spring part of the TCS-B series. It now supports a wider range of combinations.

Example Of Use

(Dimensions: mm)

Model number	Allowable torque N・m	Allowable eccentricity mm	Allowable deviation angle °	Allowable axial displacement mm	Maximum rotation speed min⁻¹	Overall N・m/rad	Axial spring constant N/mm	Moment of inertia kg・m²	Mass kg
TCFFS-65	80	0.02	1	±0.46	10000	2.28×10⁵	132	1.67×10⁻⁴	0.24
TCFFS-80	140	0.02	1	±0.58	10000	3.22×10⁵	90	4.77×10⁻⁴	0.43
TCFFS-93	250	0.02	1	±0.64	10000	6.80×10⁵	104	1.17×10⁻³	0.82
TCFFS-100	320	0.02	1	±0.71	10000	1.03×10⁶	150	1.57×10⁻³	0.92

Model number	A	B	C	P	L	S	J	G	M
TCFFS-65	65	38	57	36	17.5	8.75	7	3.5	M4
TCFFS-80	80	50	70	46	22.5	11.25	9.5	3.5	M5
TCFFS-93	93	54	80	51	28	14	12	4	M6
TCFFS-100	100	62	85	56	29	14.5	12	5	M6

(Unit: mm)

Model number	d	A	E	P	L	S	J	H	G	N	M
TCFFS-65B	14~25	65	48	36	65.5	32.75	28	31	3.5	M4	M8/M6
TCFFS-80B	15~35	80	59	46	83.5	41.75	35.5	40	3.5	M5	M10/M8
TCFFS-93B	19~35	93	66	51	98	49	40	47	4	M6	M10
TCFFS-100B	20~40	100	71	56	103	51.5	42	49	5	M6	M12/M10

They unitized the single-plate spring part for high torque transmission. You can combine it with any type of shaft coupling method.

Example Of Use

(Dimensions: mm)

Model	Allowable Torque (N·m)	Allowable Eccentricity (mm)	Allowable Angular Misalignment (°)	Allowable Axial Displacement (mm)	Maximum Rotational Speed (min⁻¹)	Torsional Stiffness (N·m/rad)	Axial Spring Constant (N/mm)	Moment of Inertia (kg·m²)	Mass (kg)
TCFFS-125	800	0.02	1	±0.90	10000	4.23×10⁶	960	4.33×10⁻³	1.66
TCFFS-155	1500	0.02	1	±1.10	8000	7.27×10⁶	1100	1.30×10⁻²	3.2
TCFFS-200	3200	0.02	1	±1.47	8000	58.4×10⁶	650	4.05×10⁻²	5.93

Model	A	B	C	P	L	S	J	G	M
TCFFS-125	125	76	108	66	34	17	13	8	M8
TCFFS-155	155	98	135	86	43	21.5	17	9	M10
TCFFS-200	200	125	176	125	50	25	19	12	M12

(Unit: mm)

Model	d	A	E	P	L	S	J	H	G	N	M
TCFFS-125B	30~55	125	88	66	140	70	57	66	8	M8	M10
TCFFS-155B	40~70	155	115	86	167	83.5	66	79	9	M10	M12
TCFFS-200B	60~100	200	153	125	196	98	78	92	12	M12	M14

The dimensions of TCFFS-B/K follow those of TCFFS-A.
The allowable radial direction displacement represents the case when eccentricity and tilt angle are zero.
The maximum rotational speed does not consider dynamic balance.
For bolt clamp hubs, the recommended shaft tolerance is h6.
For bolt clamp hubs, after pushing the shaft into the designated position, tighten two of the hub’s clamping bolts alternately in 2-3 steps to the specified tightening torque. Afterward, tighten the other two clamping bolts on the opposite side in the same manner.