SFF Models

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Features of SFF Models

These couplings have disc springs that use steel for the body. This makes them optimal for ordinary feed shafts that have high torsional stiffness, have accurate shaft rotation, and are capable of ultra-precise control. Both single-element types with high torsional stiffness and flexible double-element types that separate double elements with a spacer are available.

Friction coupling compatible with large diameters

Unlike past models of the frictional coupling type, these have no guide on the sleeve periphery to increase the precision of insertion, so they can handle large-diameter shafts.

Reliable shaft coupling

Since frictional coupling is used to mount on shafts, you can achieve high coupling strength simply by fastening the pressure bolts at the end surface of the flange, in order. They can also be mounted without drag turning by sticking a rod or the like into a hole drilled into the outer circumference of the flange.

Supports wide range of shaft dimensional tolerances

The basic class for the shaft dimensional tolerances is h7, but a wide range is supported, including k6, m6, and j6.

Pre-assembled Products

The flanges at the two sides of the coupling are assembled using a dedicated, high-precision tool, ensuring a high degree of concentricity. This helps shorten assembly time for the customer..

Clean room compatible

It is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.

SFF-□SS (Clamping)　　

[Specifications]

Model	Rated torque [N･m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
Model	Rated torque [N･m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
SFF-040SS-□B-□B-8N	8	0.02	1	±0.2	18000	15000	174	0.03×10^-3	0.17
SFF-040SS-□B-□B-12N	12	0.02	1	±0.2	18000	15000	174	0.03×10^-3	0.17
SFF-050SS-□B-□B-25N	25	0.02	1	±0.3	18000	32000	145	0.10×10^-3	0.36
SFF-060SS-□B-□B-60N	60	0.02	1	±0.3	18000	104000	399	0.22×10^-3	0.52
SFF-060SS-□B-□B-80N	80	0.02	1	±0.3	18000	104000	399	0.23×10^-3	0.49
SFF-070SS-□B-□B-90N	90	0.02	1	±0.5	18000	240000	484	0.40×10^-3	0.72
SFF-070SS-□B-□B-100N	100	0.02	1	±0.5	18000	240000	484	0.42×10^-3	0.67
SFF-080SS-□B-□B-150N	150	0.02	1	±0.5	17000	120000	96	0.79×10^-3	1.04
SFF-080SS-□B-□B-200N	200	0.02	1	±0.5	17000	310000	546	1.25×10^-3	1.40
SFF-090SS-□B-□B-250N	250	0.02	1	±0.6	15000	520000	321	1.54×10^-3	1.62
SFF-090SS-□B-□B-300N	300	0.02	1	±0.6	15000	520000	321	1.58×10^-3	1.53
SFF-100SS-□B-□B-450N	450	0.02	1	±0.65	13000	740000	540	3.27×10^-3	2.53
SFF-120SS-□B-□B-600N	600	0.02	1	±0.8	11000	970000	360	6.90×10^-3	3.78

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	S [mm]	K [mm]	M1･M2 Qty - Nominal dia.	M1･M2 Tightening torque [N･m]
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	S [mm]	K [mm]	M1･M2 Qty - Nominal dia.	M1･M2 Tightening torque [N･m]
SFF-040SS-□B-□B-8N	8･9･9.525	8･9･9.525･10･11･12･14･15･16	38	38.9	33	17.5	3.9	17	2-M4	3.4
SFF-040SS-□B-□B-12N	10･11･12･14･15･16	10･11･12･14･15･16	38	38.9	33	17.5	3.9	17	2-M4	3.4
SFF-050SS-□B-□B-25N	10･11･12･14･15･16･17･18･19	10･11･12･14･15･16･17･18･19	48	48.4	42	21.5	5.4	20	2-M5	7
SFF-060SS-□B-□B-60N	12･14･15･16･17･18･19	12･14･15･16･17･18･19･20･22	58	53.4	44	24	5.4	32	2-M6	14
	-	24･25･28	58	53.4	48	24	5.4	32	2-M5	7
	-	30	58	53.4	52	24	5.4	32	2-M5	7
SFF-060SS-□B-□B-80N	20･22	20･22	58	53.4	44	24	5.4	32	2-M6	14
	24･25･28	24･25･28	58	53.4	48	24	5.4	32	2-M5	7
	30	30	58	53.4	52	24	5.4	32	2-M5	7
SFF-070SS-□B-□B-90N	18･19	18･19･20･22･24･25	68	55.9	47	25	5.9	38	2-M6	14
SFF-070SS-□B-□B-90N	-	28･30･32･35	68	55.9	56	25	5.9	38	2-M6	14
SFF-070SS-□B-□B-100N	20･22･24･25	20･22･24･25	68	55.9	47	25	5.9	38	2-M6	14
SFF-070SS-□B-□B-100N	28･30･32･35	28･30･32･35	68	55.9	56	25	5.9	38	2-M6	14
SFF-080SS-□B-□B-150N	22･24･25	22･24･25	78	68.3	53	30	8.3	37	2-M8	34
SFF-080SS-□B-□B-150N	28･30･32･35	28･30･32･35	78	68.3	56	30	8.3	37	2-M6	14
SFF-080SS-□B-□B-200N	22･24･25	22･24･25	78	67.7	53	30	7.7	42	2-M8	34
	28･30･32･35	28･30･32･35	78	67.7	70	30	7.7	42	2-M8	34
	38	38	78	67.7	74	30	7.7	42	2-M8	34
SFF-090SS-□B-□B-250N	25･28	25･28･30･32	88	68.3	66	30	8.3	50	2-M8	34
SFF-090SS-□B-□B-250N	-	35･38･40･42	88	68.3	74	30	8.3	50	2-M8	34
SFF-090SS-□B-□B-300N	30･32	30･32	88	68.3	66	30	8.3	50	2-M8	34
SFF-090SS-□B-□B-300N	35･38･40･42	35･38･40･42	88	68.3	74	30	8.3	50	2-M8	34
SFF-100SS-□B-□B-450N	32･35･38･40･42･45･48	32･35･38･40･42･45･48	98	90.2	84	40	10.2	56	2-M10	68
SFF-120SS-□B-□B-600N	32･35･38･40･42･45	32･35･38･40･42･45	118	90.2	84	40	10.2	68	2-M10	68
SFF-120SS-□B-□B-600N	48･50･55	48･50･55	118	90.2	100	40	10.2	68	2-M10	68

* Nominal diameter of clamping bolt M1/M2 is given as number of bolts - nominal diameter, and the number is the number for one hub.

[Standard bore diameter]

Model	Standard bore diameter　d1・d2［mm］
Model	Nominal diameter	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48	50	55
SFF-040SS-□B-□B-8N	d1	●	●	●
SFF-040SS-□B-□B-8N	d2	●	●	●	●	●	●	●	●	●
SFF-040SS-□B-□B-12N	d1				●	●	●	●	●	●
SFF-040SS-□B-□B-12N	d2				●	●	●	●	●	●
SFF-050SS-□B-□B-25N	d1				●	●	●	●	●	●	●	●	●
SFF-050SS-□B-□B-25N	d2				●	●	●	●	●	●	●	●	●
SFF-060SS-□B-□B-60N	d1						●	●	●	●	●	●	●
SFF-060SS-□B-□B-60N	d2						●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-060SS-□B-□B-80N	d1													●	●	●	●	●	●
SFF-060SS-□B-□B-80N	d2													●	●	●	●	●	●
SFF-070SS-□B-□B-90N	d1											●	●
SFF-070SS-□B-□B-90N	d2											●	●	●	●	●	●	●	●	●	●
SFF-070SS-□B-□B-100N	d1													●	●	●	●	●	●	●	●
SFF-070SS-□B-□B-100N	d2													●	●	●	●	●	●	●	●
SFF-080SS-□B-□B-150N	d1														●	●	●	●	●	●	●
SFF-080SS-□B-□B-150N	d2														●	●	●	●	●	●	●
SFF-080SS-□B-□B-200N	d1														●	●	●	●	●	●	●	●
SFF-080SS-□B-□B-200N	d2														●	●	●	●	●	●	●	●
SFF-090SS-□B-□B-250N	d1																●	●
SFF-090SS-□B-□B-250N	d2																●	●	●	●	●	●	●	●
SFF-090SS-□B-□B-300N	d1																		●	●	●	●	●	●
SFF-090SS-□B-□B-300N	d2																		●	●	●	●	●	●
SFF-100SS-□B-□B-450N	d1																			●	●	●	●	●	●	●
SFF-100SS-□B-□B-450N	d2																			●	●	●	●	●	●	●
SFF-120SS-□B-□B-600N	d1																			●	●	●	●	●	●	●	●	●
SFF-120SS-□B-□B-600N	d2																			●	●	●	●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

SFF-□SS (Wedge Coupling)

[Specifications]

Model	Rated torque [N･m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
Model	Rated torque [N･m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
SFF-070SS-□K-□K-100N	100	0.02	1	±0.5	18000	240000	484	0.66×10^-3	0.92
SFF-080SS-□K-□K-150N	150	0.02	1	±0.5	17000	120000	96	1.21×10^-3	1.03
SFF-080SS-□K-□K-200N	200	0.02	1	±0.5	17000	310000	546	1.11×10^-3	1.26
SFF-090SS-□K-□K-300N	300	0.02	1	±0.6	15000	520000	321	1.75×10^-3	1.48
SFF-100SS-□K-□K-450N	450	0.02	1	±0.65	13000	740000	540	2.56×10^-3	1.87
SFF-120SS-□K-□K-600N	600	0.02	1	±0.8	11000	970000	360	5.33×10^-3	2.50
SFF-140SS-□K-□K-800N	800	0.02	1	±1.0	10000	1400000	360	10.28×10^-3	4.66
SFF-140SS-□K-□K-1000N	1000	0.02	1	±1.0	10000	1400000	360	14.70×10^-3	5.01

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	S [mm]	C [mm]	K [mm]	H [mm]	M1 Qty - Nomina dia.	M1 Tightening torque [N･m]	M2 Qty - Nominal dia.
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	S [mm]	C [mm]	K [mm]	H [mm]	M1 Qty - Nomina dia.	M1 Tightening torque [N･m]	M2 Qty - Nominal dia.
SFF-070SS-□K-□K-100N	18･19	18･19	68	62.9	53	23.5	5.9	5	38	3-5.1	6-M6	10	3-M6
	20･22･24･25	20･22･24･25	68	62.9	58	23.5	5.9	5	38	3-5.1	6-M6	10	3-M6
	28･30	28･30	68	62.9	63	23.5	5.9	5	38	3-5.1	6-M6	10	3-M6
	32･35	32･35	68	62.9	68	23.5	5.9	5	38	3-5.1	6-M6	10	3-M6
SFF-080SS-□K-□K-150N	22･24･25	22･24･25	78	69.3	58	25.5	8.3	5	37	4-5.1	4-M6	10	2-M6
	28･30	28･30	78	69.3	63	25.5	8.3	5	37	4-5.1	4-M6	10	2-M6
	32･35	32･35	78	69.3	68	25.5	8.3	5	37	4-5.1	4-M6	10	2-M6
	-	38	78	69.3	73	25.5	8.3	5	37	4-5.1	4-M6	10	2-M6
SFF-080SS-□K-□K-200N	22･24･25	22･24･25	78	68.7	58	25.5	7.7	5	42	3-5.1	6-M6	10	3-M6
	28･30	28･30	78	68.7	63	25.5	7.7	5	42	3-5.1	6-M6	10	3-M6
	32･35	32･35	78	68.7	68	25.5	7.7	5	42	3-5.1	6-M6	10	3-M6
	38	38	78	68.7	73	25.5	7.7	5	42	3-5.1	6-M6	10	3-M6
SFF-090SS-□K-□K-300N	28･30	28･30	88	69.3	63	25.5	8.3	5	50	3-6.8	6-M6	10	3-M6
	32･35	32･35	88	69.3	68	25.5	8.3	5	50	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	88	69.3	73	25.5	8.3	5	50	3-6.8	6-M6	10	3-M6
	45	45	88	69.3	78	25.5	8.3	5	50	3-6.8	6-M6	10	3-M6
	48	48	88	69.3	83	25.5	8.3	5	50	3-6.8	6-M6	10	3-M6
SFF-100SS-□K-□K-450N	32･35	32･35	98	75.2	68	27.5	10.2	5	56	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	98	75.2	73	27.5	10.2	5	56	3-6.8	6-M6	10	3-M6
	45	45	98	75.2	78	27.5	10.2	5	56	3-6.8	6-M6	10	3-M6
	48･50	48･50	98	75.2	83	27.5	10.2	5	56	3-6.8	6-M6	10	3-M6
SFF-120SS-□K-□K-600N	35	35	118	75.2	68	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	118	75.2	73	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	45	45	118	75.2	78	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	48･50･52	48･50･52	118	75.2	83	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	55	55	118	75.2	88	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	60･62･65	60･62･65	118	75.2	98	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
	-	70	118	75.2	108	27.5	10.2	5	68	3-6.8	6-M6	10	3-M6
SFF-140SS-□K-□K-800N	35･38	35･38	138	94.6	83	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	40･42･45	40･42･45	138	94.6	88	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	-	48･50･52	138	94.6	98	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	-	55･60	138	94.6	108	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	-	62･65･70	138	94.6	118	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	-	75･80	138	94.6	128	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
SFF-140SS-□K-□K-1000N	48･50･52	48･50･52	138	94.6	98	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	55･60	55･60	138	94.6	108	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	62･65･70	62･65･70	138	94.6	118	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8
	75	75･80	138	94.6	128	36.5	10.6	5.5	78	3-8.6	6-M8	24	3-M8

* The nominal diameters of the pressure bolt M1 and detachment screw hole M2 are equal to the quantity minus the nominal diameter of the screw threads. The quantities of H, M1 and M2 are the same as the quantity for a hub on one side.

[Standard bore diameter]

Model	Standard bore diameter d1･d2[mm]
Model	Nominal diameter	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48	50	52	55	60	62	65	70	75	80
SFF-070SS-□K-□K-100N	d1	●	●	●	●	●	●	●	●	●	●
SFF-070SS-□K-□K-100N	d2	●	●	●	●	●	●	●	●	●	●
SFF-080SS-□K-□K-150N	d1				●	●	●	●	●	●	●
SFF-080SS-□K-□K-150N	d2				●	●	●	●	●	●	●	●
SFF-080SS-□K-□K-200N	d1				●	●	●	●	●	●	●	●
SFF-080SS-□K-□K-200N	d2				●	●	●	●	●	●	●	●
SFF-090SS-□K-□K-300N	d1							●	●	●	●	●	●	●	●	●
SFF-090SS-□K-□K-300N	d2							●	●	●	●	●	●	●	●	●
SFF-100SS-□K-□K-450N	d1									●	●	●	●	●	●	●	●
SFF-100SS-□K-□K-450N	d2									●	●	●	●	●	●	●	●
SFF-120SS-□K-□K-600N	d1										●	●	●	●	●	●	●	●	●	●	●	●
SFF-120SS-□K-□K-600N	d2										●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-140SS-□K-□K-800N	d1										●	●	●	●	●
SFF-140SS-□K-□K-800N	d2										●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-140SS-□K-□K-1000N	d1															●	●	●	●	●	●	●	●	●
SFF-140SS-□K-□K-1000N	d2															●	●	●	●	●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

SFF-□DS (Clamping)　　

[Specifications]

Model	Rated torque [N･m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
Model	Rated torque [N･m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
SFF-040DS-□B-□B-8N	8	0.10	1 (On one side)	±0.4	14000	7500	87	0.04×10^-3	0.22
SFF-040DS-□B-□B-12N	12	0.10	1 (On one side)	±0.4	14000	7500	87	0.04×10^-3	0.22
SFF-050DS-□B-□B-25N	25	0.20	1 (On one side)	±0.6	14000	16000	72.5	0.13×10^-3	0.46
SFF-060DS-□B-□B-60N	60	0.20	1 (On one side)	±0.6	14000	52000	199.5	0.28×10^-3	0.64
SFF-060DS-□B-□B-80N	80	0.20	1 (On one side)	±0.6	14000	52000	199.5	0.29×10^-3	0.61
SFF-070DS-□B-□B-90N	90	0.25	1 (On one side)	±1.0	14000	120000	242	0.53×10^-3	0.90
SFF-070DS-□B-□B-100N	100	0.25	1 (On one side)	±1.0	14000	120000	242	0.55×10^-3	0.85
SFF-080DS-□B-□B-150N	150	0.32	1 (On one side)	±1.0	13000	60000	48	1.10×10^-3	1.37
SFF-080DS-□B-□B-200N	200	0.31	1 (On one side)	±1.0	13000	155000	273	1.50×10^-3	1.72
SFF-090DS-□B-□B-250N	250	0.32	1 (On one side)	±1.2	12000	260000	160.5	2.03×10^-3	2.02
SFF-090DS-□B-□B-300N	300	0.32	1 (On one side)	±1.2	12000	260000	160.5	2.10×10^-3	1.92
SFF-100DS-□B-□B-450N	450	0.38	1 (On one side)	±1.3	10000	370000	270	4.18×10^-3	3.12
SFF-120DS-□B-□B-600N	600	0.38	1 (On one side)	±1.6	9000	485000	180	8.87×10^-3	4.60

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	M1･M2 Qty - Nominal dia.	M1･M2 Tightening torque [N･m]
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	M1･M2 Qty - Nominal dia.	M1･M2 Tightening torque [N･m]
SFF-040DS-□B-□B-8N	8･9･9.525	8･9･9.525･10･11･12･14･15･16	38	48.8	33	17.5	6	3.9	17	17	2-M4	3.4
SFF-040DS-□B-□B-12N	10･11･12･14･15･16	10･11･12･14･15･16	38	48.8	33	17.5	6	3.9	17	17	2-M4	3.4
SFF-050DS-□B-□B-25N	10･11･12･14･15･16･17･18･19	10･11･12･14･15･16･17･18･19	48	60.8	42	21.5	7	5.4	20	20	2-M5	7
SFF-060DS-□B-□B-60N	12･14･15･16･17･18･19	12･14･15･16･17･18･19･20･22	58	65.8	44	24	7	5.4	31	32	2-M6	14
	-	24･25･28	58	65.8	48	24	7	5.4	31	32	2-M5	7
	-	30	58	65.8	52	24	7	5.4	31	32	2-M5	7
SFF-060DS-□B-□B-80N	20･22	20･22	58	65.8	44	24	7	5.4	31	32	2-M6	14
	24･25･28	24･25･28	58	65.8	48	24	7	5.4	31	32	2-M5	7
	30	30	58	65.8	52	24	7	5.4	31	32	2-M5	7
SFF-070DS-□B-□B-90N	18･19	18･19･20･22･24･25	68	69.8	47	25	8	5.9	37	38	2-M6	14
SFF-070DS-□B-□B-90N	-	28･30･32･35	68	69.8	56	25	8	5.9	37	38	2-M6	14
SFF-070DS-□B-□B-100N	20･22･24･25	20･22･24･25	68	69.8	47	25	8	5.9	37	38	2-M6	14
SFF-070DS-□B-□B-100N	28･30･32･35	28･30･32･35	68	69.8	56	25	8	5.9	37	38	2-M6	14
SFF-080DS-□B-□B-150N	22･24･25	22･24･25	78	86.6	53	30	10	8.3	40	37	2-M8	34
SFF-080DS-□B-□B-150N	28･30･32･35	28･30･32･35	78	86.6	56	30	10	8.3	40	37	2-M6	14
SFF-080DS-□B-□B-200N	22･24･25	22･24･25	78	85.4	53	30	10	7.7	40	42	2-M8	34
	28･30･32･35	28･30･32･35	78	85.4	70	30	10	7.7	40	42	2-M8	34
	38	38	78	85.4	74	30	10	7.7	40	42	2-M8	34
SFF-090DS-□B-□B-250N	25･28	25･28･30･32	88	86.6	66	30	10	8.3	50	50	2-M8	34
SFF-090DS-□B-□B-250N	-	35･38･40･42	88	86.6	74	30	10	8.3	50	50	2-M8	34
SFF-090DS-□B-□B-300N	30･32	30･32	88	86.6	66	30	10	8.3	50	50	2-M8	34
SFF-090DS-□B-□B-300N	35･38･40･42	35･38･40･42	88	86.6	74	30	10	8.3	50	50	2-M8	34
SFF-100DS-□B-□B-450N	32･35･38･40･42･45･48	32･35･38･40･42･45･48	98	112.4	84	40	12	10.2	52	56	2-M10	68
SFF-120DS-□B-□B-600N	32･35･38･40･42･45	32･35･38･40･42･45	118	112.4	84	40	12	10.2	72	68	2-M10	68
SFF-120DS-□B-□B-600N	48･50･55	48･50･55	118	112.4	100	40	12	10.2	72	68	2-M10	68

* Nominal diameter of clamping bolt M1/M2 is given as number of bolts - nominal diameter, and the number is the number for one hub.

[Standard bore diameter]

Model	Standard bore diameter　d1・d2［mm］
Model	Nominal diameter	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48	50	55
SFF-040DS-□B-□B-8N	d1	●	●	●
SFF-040DS-□B-□B-8N	d2	●	●	●	●	●	●	●	●	●
SFF-040DS-□B-□B-12N	d1				●	●	●	●	●	●
SFF-040DS-□B-□B-12N	d2				●	●	●	●	●	●
SFF-050DS-□B-□B-25N	d1				●	●	●	●	●	●	●	●	●
SFF-050DS-□B-□B-25N	d2				●	●	●	●	●	●	●	●	●
SFF-060DS-□B-□B-60N	d1						●	●	●	●	●	●	●
SFF-060DS-□B-□B-60N	d2						●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-060DS-□B-□B-80N	d1													●	●	●	●	●	●
SFF-060DS-□B-□B-80N	d2													●	●	●	●	●	●
SFF-070DS-□B-□B-90N	d1											●	●
SFF-070DS-□B-□B-90N	d2											●	●	●	●	●	●	●	●	●	●
SFF-070DS-□B-□B-100N	d1													●	●	●	●	●	●	●	●
SFF-070DS-□B-□B-100N	d2													●	●	●	●	●	●	●	●
SFF-080DS-□B-□B-150N	d1														●	●	●	●	●	●	●
SFF-080DS-□B-□B-150N	d2														●	●	●	●	●	●	●
SFF-080DS-□B-□B-200N	d1														●	●	●	●	●	●	●	●
SFF-080DS-□B-□B-200N	d2														●	●	●	●	●	●	●	●
SFF-090DS-□B-□B-250N	d1																●	●
SFF-090DS-□B-□B-250N	d2																●	●	●	●	●	●	●	●
SFF-090DS-□B-□B-300N	d1																		●	●	●	●	●	●
SFF-090DS-□B-□B-300N	d2																		●	●	●	●	●	●
SFF-100DS-□B-□B-450N	d1																			●	●	●	●	●	●	●
SFF-100DS-□B-□B-450N	d2																			●	●	●	●	●	●	●
SFF-120DS-□B-□B-600N	d1																			●	●	●	●	●	●	●	●	●
SFF-120DS-□B-□B-600N	d2																			●	●	●	●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

SFF-□DS (Wedge Coupling)

[Specifications]

Model	Rated torque [N･m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
Model	Rated torque [N･m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N･m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg･m²]	Mass [kg]
SFF-070DS-□K-□K-100N	100	0.25	1 (On one side)	±1.0	14000	120000	242	0.80×10^-3	1.10
SFF-080DS-□K-□K-150N	150	0.32	1 (On one side)	±1.0	13000	60000	48	1.36×10^-3	1.56
SFF-080DS-□K-□K-200N	200	0.31	1 (On one side)	±1.0	13000	155000	273	1.42×10^-3	1.60
SFF-090DS-□K-□K-300N	300	0.32	1 (On one side)	±1.2	12000	260000	160.5	2.24×10^-3	1.87
SFF-100DS-□K-□K-450N	450	0.38	1 (On one side)	±1.3	10000	370000	270	3.51×10^-3	2.49
SFF-120DS-□K-□K-600N	600	0.38	1 (On one side)	±1.6	9000	485000	180	7.17×10^-3	3.29
SFF-140DS-□K-□K-800N	800	0.44	1 (On one side)	±2.0	8000	700000	180	14.68×10^-3	6.05
SFF-140DS-□K-□K-1000N	1000	0.44	1 (On one side)	±2.0	8000	700000	180	19.11×10^-3	6.39

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	LP [mm]	S [mm]	C [mm]	d3 [mm]	K [mm]	H [mm]	M1 Qty - Nomina dia.	M1 Tightening torque [N･m]	M2 Qty - Nominal dia.
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1･N2 [mm]	LF [mm]	LP [mm]	S [mm]	C [mm]	d3 [mm]	K [mm]	H [mm]	M1 Qty - Nomina dia.	M1 Tightening torque [N･m]	M2 Qty - Nominal dia.
SFF-070DS-□K-□K-100N	18･19	18･19	68	76.8	53	23.5	8	5.9	5	37	38	3-5.1	6-M6	10	3-M6
	20･22･24･25	20･22･24･25	68	76.8	58	23.5	8	5.9	5	37	38	3-5.1	6-M6	10	3-M6
	28･30	28･30	68	76.8	63	23.5	8	5.9	5	37	38	3-5.1	6-M6	10	3-M6
	32･35	32･35	68	76.8	68	23.5	8	5.9	5	37	38	3-5.1	6-M6	10	3-M6
SFF-080DS-□K-□K-150N	22･24･25	22･24･25	78	87.6	58	25.5	10	8.3	5	40	37	4-5.1	4-M6	10	2-M6
	28･30	28･30	78	87.6	63	25.5	10	8.3	5	40	37	4-5.1	4-M6	10	2-M6
	32･35	32･35	78	87.6	68	25.5	10	8.3	5	40	37	4-5.1	4-M6	10	2-M6
	-	38	78	87.6	73	25.5	10	8.3	5	40	37	4-5.1	4-M6	10	2-M6
SFF-080DS-□K-□K-200N	22･24･25	22･24･25	78	86.4	58	25.5	10	7.7	5	40	42	3-5.1	6-M6	10	3-M6
	28･30	28･30	78	86.4	63	25.5	10	7.7	5	40	42	3-5.1	6-M6	10	3-M6
	32･35	32･35	78	86.4	68	25.5	10	7.7	5	40	42	3-5.1	6-M6	10	3-M6
	38	38	78	86.4	73	25.5	10	7.7	5	40	42	3-5.1	6-M6	10	3-M6
SFF-090DS-□K-□K-300N	28･30	28･30	88	87.6	63	25.5	10	8.3	5	50	50	3-6.8	6-M6	10	3-M6
	32･35	32･35	88	87.6	68	25.5	10	8.3	5	50	50	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	88	87.6	73	25.5	10	8.3	5	50	50	3-6.8	6-M6	10	3-M6
	45	45	88	87.6	78	25.5	10	8.3	5	50	50	3-6.8	6-M6	10	3-M6
	48	48	88	87.6	83	25.5	10	8.3	5	50	50	3-6.8	6-M6	10	3-M6
SFF-100DS-□K-□K-450N	32･35	32･35	98	97.4	68	27.5	12	10.2	5	52	56	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	98	97.4	73	27.5	12	10.2	5	52	56	3-6.8	6-M6	10	3-M6
	45	45	98	97.4	78	27.5	12	10.2	5	52	56	3-6.8	6-M6	10	3-M6
	48･50	48･50	98	97.4	83	27.5	12	10.2	5	52	56	3-6.8	6-M6	10	3-M6
SFF-120DS-□K-□K-600N	35	35	118	97.4	68	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	38･40･42	38･40･42	118	97.4	73	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	45	45	118	97.4	78	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	48･50･52	48･50･52	118	97.4	83	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	55	55	118	97.4	88	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	60･62･65	60･62･65	118	97.4	98	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
	-	70	118	97.4	108	27.5	12	10.2	5	72	68	3-6.8	6-M6	10	3-M6
SFF-140DS-□K-□K-800N	35･38	35･38	138	120	83	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	40･42･45	40･42･45	138	120	88	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	-	48･50･52	138	120	98	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	-	55･60	138	120	108	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	-	62･65･70	138	120	118	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	-	75･80	138	120	128	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
SFF-140DS-□K-□K-1000N	48･50･52	48･50･52	138	120	98	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	55･60	55･60	138	120	108	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	62･65･70	62･65･70	138	120	118	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8
	75	75･80	138	120	128	36.5	15	10.6	5.5	80	78	3-8.6	6-M8	24	3-M8

[Standard bore diameter]

Model	Standard bore diameter d1･d2[mm]
Model	Nominal diameter	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48	50	52	55	60	62	65	70	75	80
SFF-070DS-□K-□K-100N	d1	●	●	●	●	●	●	●	●	●	●
SFF-070DS-□K-□K-100N	d2	●	●	●	●	●	●	●	●	●	●
SFF-080DS-□K-□K-150N	d1				●	●	●	●	●	●	●
SFF-080DS-□K-□K-150N	d2				●	●	●	●	●	●	●	●
SFF-080DS-□K-□K-200N	d1				●	●	●	●	●	●	●	●
SFF-080DS-□K-□K-200N	d2				●	●	●	●	●	●	●	●
SFF-090DS-□K-□K-300N	d1							●	●	●	●	●	●	●	●	●
SFF-090DS-□K-□K-300N	d2							●	●	●	●	●	●	●	●	●
SFF-100DS-□K-□K-450N	d1									●	●	●	●	●	●	●	●
SFF-100DS-□K-□K-450N	d2									●	●	●	●	●	●	●	●
SFF-120DS-□K-□K-600N	d1										●	●	●	●	●	●	●	●	●	●	●	●
SFF-120DS-□K-□K-600N	d2										●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-140DS-□K-□K-800N	d1										●	●	●	●	●
SFF-140DS-□K-□K-800N	d2										●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-140DS-□K-□K-1000N	d1															●	●	●	●	●	●	●	●	●
SFF-140DS-□K-□K-1000N	d2															●	●	●	●	●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Options of SFF Models

Tapered shaft supported
Single element
- [Specifications]
  
  [Dimensions]
  
  [Standard bore diameter]
Tapered shaft supported
Double element
- [Specifications]
  
  [Dimensions]
  
  [Standard bore diameter]
Flange mounting supported
- [Specifications]
  
  [Dimensions]
  
  [Standard bore diameter]
Clean room compatible
Single element
- [Specifications]
  
  [Dimensions]
  
  [Standard bore diameter]
Clean room compatible
Double element
- [Specifications]
  
  [Dimensions]
  
  [Standard bore diameter]

Tapered shaft supported Single elementSupports servo motor tapered shafts.

[Specifications]

Model	Rated Torque [N・m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
Model	Rated Torque [N・m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
SFF-040SS-□B-11CN-8N	8	0.02	1	±0.2	18000	15000	174	0.03×10^-3	0.2
SFF-040SS-□B-11CN-12N	12	0.02	1	±0.2	18000	15000	174	0.03×10^-3	0.18
SFF-050SS-□B-14CN-25N	25	0.02	1	±0.3	18000	32000	145	0.09×10^-3	0.36
SFF-050SS-□B-16CN-25N	25	0.02	1	±0.3	18000	32000	145	0.10×10^-3	0.41
SFF-060SS-□B-16CN-60N	60	0.02	1	±0.3	18000	104000	399	0.18×10^-3	0.54
SFF-060SS-□B-16CN-80N	80	0.02	1	±0.3	18000	104000	399	0.19×10^-3	0.52

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	W [mm]	T [mm]	D [mm]	L [mm]	N1 [mm]	N2 [mm]	LF1 [mm]	LF2 [mm]	S [mm]	K [mm]	H [mm]	M Qty - nominal dia	M Tightening torque [N・m]	DA [mm]	WA [mm]	J Nominal x pitch	J Tightening torque [N・m]
SFF-040SS-□B-11CN-8N	8～9.525	11	4	12.2	38	46.4	33	22	17.5	25	3.9	17	5.1	2-M4	3.4	12	6	M6×1.0	10
SFF-040SS-□B-11CN-12N	10～16	11	4	12.2	38	46.4	33	22	17.5	25	3.9	17	5.1	2-M4	3.4	12	6	M6×1.0	10
SFF-050SS-□B-14CN-25N	10～19	14	4	15.1	48	56.9	42	27.5	21.5	30	5.4	20	5.1	2-M5	7	15	8	M8×1.0	20
SFF-050SS-□B-16CN-25N	10～19	16	5	17.3	48	67.9	42	29.5	21.5	41	5.4	20	6.8	2-M5	7	16	10	Ｍ10×1.25	30
SFF-060SS-□B-16CN-60N	12～19	16	5	17.3	58	70.4	44	29.5	24	41	5.4	32	6.8	2-M6	14	16	10	Ｍ10×1.25	30
SFF-060SS-□B-16CN-80N	20～22	16	5	17.3	58	70.4	44	29.5	24	41	5.4	32	6.8	2-M6	14	16	10	Ｍ10×1.25	30
	24～28						48							2-M5	7
	30						52							2-M5	7

[Standard bore diameter]

Model	Standard bore diameter d1［mm］
Model	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30
SFF-040SS-□B-11CN-8N	●	●	●
SFF-040SS-□B-11CN-12N				●	●	●	●	●	●
SFF-050SS-□B-14CN-25N				●	●	●	●	●	●	●	●	●
SFF-050SS-□B-16CN-25N				●	●	●	●	●	●	●	●	●
SFF-060SS-□B-16CN-60N						●	●	●	●	●	●	●
SFF-060SS-□B-16CN-80N													●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Tapered shaft supported Double elementSupports servo motor tapered shafts.

[Specifications]

Model	Rated Torque [N・m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
Model	Rated Torque [N・m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
SFF-040DS-□B-11CN-8N	8	0.10	1(On one side)	±0.4	14000	7500	87	0.04×10^－3	0.25
SFF-040DS-□B-11CN-12N	12	0.10	(On one side)	±0.4	14000	7500	87	0.04×10^－3	0.23
SFF-050DS-□B-14CN-25N	25	0.20	1(On one side)	±0.6	14000	16000	72.5	0.12×10^－3	0.45
SFF-050DS-□B-16CN-25N	25	0.20	1(On one side)	±0.6	14000	16000	72.5	0.13×10^－3	0.49
SFF-060DS-□B-16CN-60N	60	0.20	1(On one side)	±0.6	14000	52000	199.5	0.24×10^－3	0.67
SFF-060DS-□B-16CN-80N	80	0.20	1(On one side)	±0.6	14000	52000	199.5	0.26×10^－3	0.64

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	W [mm]	T [mm]	D [mm]	L [mm]	N1 [mm]	Ｎ2 [mm]	LF1 [mm]	LF2 [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	H [mm]	M Qty - nominal dia	M Tightening torque [N・m]	DA [mm]	WA [mm]	J Nominal x pitch	J Tightening torque[N・m]
SFF-040DS-□B-11CN-8N	8～9.525	11	4	12.2	38	56.3	33	22	17.5	25	6	3.9	17	17	5.1	2-M4	3.4	12	6	M6×1.0	10
SFF-040DS-□B-11CN-12N	10～16	11	4	12.2	38	56.3	33	22	17.5	25	6	3.9	17	17	5.1	2-M4	3.4	12	6	M6×1.0	10
SFF-050DS-□B-14CN-25N	10～19	14	4	15.1	48	69.3	42	27.5	21.5	30	7	5.4	20	20	5.1	2-M5	7	15	8	M8×1.0	20
SFF-050DS-□B-16CN-25N	10～19	15	5	17.3	48	80.3	42	29.5	21.5	41	7	5.4	20	20	6.8	2-M5	7	16	10	M10×1.25	30
SFF-060DS-□B-16CN-60N	12～19	16	5	17.3	58	82.8	44	29.5	24	41	7	5.4	31	32	6.8	2-M6	14	16	10	M10×1.25	30
SFF-060DS-□B-16CN-80N	20～22	16	5	17.3	58	82.8	44	29.5	24	41	7	5.4	31	32	6.8	2-M6	14	16	10	M10×1.25	30
	24～28						48									2-M5	7
	30						52									2-M5	7

[Standard bore diameter]

Model	Standard bore diameter d1［mm］
Model	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30
SFF-040DS-□B-11CN-8N	●	●	●
SFF-040DS-□B-11CN-12N				●	●	●	●	●	●
SFF-050DS-□B-14CN-25N				●	●	●	●	●	●	●	●	●
SFF-050DS-□B-16CN-25N				●	●	●	●	●	●	●	●	●
SFF-060DS-□B-16CN-60N						●	●	●	●	●	●	●
SFF-060DS-□B-16CN-80N													●	●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Flange mounting supportedSupports direct drive motor and speed reducer.

[Specifications]

Model	Rated Torque [N・m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
Model	Rated Torque [N・m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
SFF-070DS-□B-105D-100N	100	0.25	1(On one side)	±1.0	1000	120000	242	1.20×10^-3	1.08
SFF-080DS-□B-166D-200N	200	0.31	1(On one side)	±1.0	1000	155000	273	8.35×10^-3	3.11
SFF-090DS-□B-166D-300N	300	0.32	1(On one side)	±1.2	1000	260000	160.5	8.69×10^-3	3.18
SFF-100DS-□B-166D-450N	450	0.38	1(On one side)	±1.3	1000	370000	270	10.01×10^-3	3.91
SFF-120DS-□B-166D-600N	600	0.38	1(On one side)	±1.6	1000	485000	180	12.66×10^-3	4.57

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D1 [mm]	D2 [mm]	L [mm]	N [mm]	LF1 [mm]	LF2 [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	M1 [mm]	TK1 [mm]	M2 [mm]	TK2 [mm]	M Qty - nominal dia	M Tightening torque [N・m]
SFF-070DS-□B-105D-100N	28～35	36	68	105	54.8	56	25	10	8	5.9	37	38	6.4	86	6.4	92	2-M6	14
SFF-080DS-□B-166D-200N	28～38	39	78	166	68.9	70(74)	30	13.5	10	7.7	40	42	6.4	150	8.6	150	2-M8	34
SFF-090DS-□B-166D-300N	35～42	49	88	166	70.1	74	30	13.5	10	8.3	50	50	6.4	150	8.6	150	2-M8	34
SFF-100DS-□B-166D-450N	32～48	51	98	166	85.9	84	40	13.5	12	10.2	52	56	6.4	150	8.6	150	2-M10	68
SFF-120DS-□B-166D-600N	48～55	67	118	166	85.9	100	40	13.5	12	10.2	72	68	6.4	150	8.6	150	2-M10	68

* The figures in parentheses ( ) for the SFF-080 are the values when d1 is φ38 mm.

* Special arrangements may be possible for mounting holes at the flange end regarding bore diameter, number, and pitch. Check if arrangements are possible.

[Standard bore diameter]

Model	Standard bore diameter d1 [mm]
Model	28	30	32	35	38	40	42	45	48	50	55
SFF-070DS-□B-105D-100N	●	●	●	●
SFF-080DS-□B-166D-200N	●	●	●	●	●
SFF-090DS-□B-166D-300N				●	●	●	●
SFF-100DS-□B-166D-450N			●	●	●	●	●	●	●
SFF-120DS-□B-166D-600N									●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Clean room compatible Single elementIt is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.

[Specifications]

Model	Rated Torque [N・m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
Model	Rated Torque [N・m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
SFF-040SS-□-□B-□B-8N	8	0.02	1	±0.2	18000	15000	174	0.03×10 ^-3	0.17
SFF-050SS-□-□B-□B-16N	16	0.02	1	±0.3	18000	32000	145	0.10×10 ^-3	0.36
SFF-060SS-□-□B-□B-40N	40	0.02	1	±0.3	18000	104000	399	0.22×10 ^-3	0.52
SFF-060SS-□-□B-□B-50N	50	0.02	1	±0.3	18000	104000	399	0.23×10 ^-3	0.49
SFF-070SS-□-□B-□B-65N	65	0.02	1	±0.5	18000	240000	484	0.40×10 ^-3	0.72
SFF-080SS-□-□B-□B-120N	120	0.02	1	±0.5	17000	310000	546	1.25×10 ^-3	1.40
SFF-090SS-□-□B-□B-150N	150	0.02	1	±0.6	15000	520000	321	1.58×10^-3	1.53
SFF-100SS-□-□B-□B-250N	250	0.02	1	±0.65	13000	740000	540	3.27×10^-3	2.53

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	S [mm]	K [mm]	M1・M2 Qty - nominal dia	Tightening torque [N・m]
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	S [mm]	K [mm]	M1・M2 Qty - nominal dia	CC Low dust	CF Fluorine
SFF-040SS-□-□B-□B-8N	8～16	8～16	38	38.9	33	17.5	3.9	17	2-M4	4.5	4.5
SFF-050SS-□-□B-□B-16N	10～19	10～19	48	48.4	42	21.5	5.4	20	2-M5	9	8.5
SFF-060SS-□-□B-□B-40N	12～22	12～22	58	53.4	44	24	5.4	32	2-M6	16	16
	-	24～28	58	53.4	48	24	5.4	32	2-M5	9	8.5
	-	30	58	53.4	52	24	5.4	32	2-M5	9	8.5
SFF-060SS-□-□B-□B-50N	24～28	24～28	58	53.4	48	24	5.4	32	2-M5	9	8.5
SFF-060SS-□-□B-□B-50N	30	30	58	53.4	52	24	5.4	32	2-M5	9	8.5
SFF-070SS-□-□B-□B-65N	18～19	18～25	68	55.9	47	25	5.9	38	2-M6	16	16
SFF-070SS-□-□B-□B-65N	-	28～35	68	55.9	56	25	5.9	38	2-M6	16	16
SFF-080SS-□-□B-□B-120N	28～35	28～35	78	67.7	70	30	7.7	42	2-M8	37	45
SFF-080SS-□-□B-□B-120N	38	38	78	67.7	74	30	7.7	42	2-M8	37	45
SFF-090SS-□-□B-□B-150N	35～42	35～42	88	68.3	74	30	8.3	50	2-M8	37	45
SFF-100SS-□-□B-□B-250N	38～48	38～48	98	90.2	84	40	10.2	56	2-M10	68	65

* Nominal diameter of clamping bolt M1/M2 is given as number of bolts - nominal diameter, and the number is the number for one hub.

* You can choose from two types of grease for clamp bolts : low dust generation grease and fluorine grease.

[Standard bore diameter]

Model	Standard bore diameter d1・d2 [mm]
Model	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48
SFF-040SS-□-□B-□B-8N	●	●	●	●	●	●	●	●	●
SFF-050SS-□-□B-□B-16N				●	●	●	●	●	●	●	●	●
SFF-060SS-□-□B-□B-40N						●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-060SS-□-□B-□B-50N															●	●	●	●
SFF-070SS-□-□B-□B-65N											●	●	●	●	●	●	●	●	●	●
SFF-080SS-□-□B-□B-120N																	●	●	●	●	●
SFF-090SS-□-□B-□B-150N																				●	●	●	●
SFF-100SS-□-□B-□B-250N																					●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Clean room compatible Double elementIt is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.

[Specifications]

Model	Rated Torque [N・m]	Misalignment			Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
Model	Rated Torque [N・m]	Parallel [mm]	Angular [°]	Axial [mm]	Max. rotation speed [min^-1]	Torsional stiffness [N・m/rad]	Axial stiffness [N/mm]	Moment of inertia [kg/m²]	Mass [kg]
SFF-040DS-□-□B-□B-8N	8	0.1	1(On one side)	±0.4	14000	7500	87	0.04×10 ^-3	0.22
SFF-050DS-□-□B-□B-16N	16	0.2	1(On one side)	±0.6	14000	16000	72.5	0.13×10 ^-3	0.46
SFF-060DS-□-□B-□B-40N	40	0.2	1(On one side)	±0.6	14000	52000	199.5	0.28×10 ^-3	0.64
SFF-060DS-□-□B-□B-50N	50	0.2	1(On one side)	±0.6	14000	52000	199.5	0.29×10 ^-3	0.61
SFF-070DS-□-□B-□B-65N	65	0.25	1(On one side)	±1.0	14000	120000	242	0.53×10 ^-3	0.90
SFF-080DS-□-□B-□B-120N	120	0.31	1(On one side)	±1.0	13000	155000	273	1.50×10^-3	1.72
SFF-090DS-□-□B-□B-150N	150	0.32	1(On one side)	±1.2	12000	260000	160.5	2.03×10^-3	2.02
SFF-100DS-□-□B-□B-250N	250	0.38	1(On one side)	±1.3	10000	370000	270	4.18×10^-3	3.12

* Max. rotation speed does not take into account dynamic balance.

* Torsional stiffness values given are measured values for the element alone.

* The moment of inertia and mass are measured for the maximum bore diameter.

[Dimensions]

Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	M1・M2 Qty - nominal dia	Tightening torque [N・m]
Model	d1 [mm]	d2 [mm]	D [mm]	L [mm]	N1・N2 [mm]	LF [mm]	LP [mm]	S [mm]	d3 [mm]	K [mm]	M1・M2 Qty - nominal dia	CC Low dust	CF Fluorine
SFF-040DS-□-□B-□B-8N	8～16	8～16	38	48.8	33	17.5	6	3.9	17	17	2-M4	4.5	4.5
SFF-050DS-□-□B-□B-16N	10～19	10～19	48	60.8	42	21.5	7	5.4	20	20	2-M5	9	8.5
SFF-060DS-□-□B-□B-40N	12～22	12～22	58	65.8	44	24	7	5.4	31	32	2-M6	16	16
	-	24～28	58	65.8	48	24	7	5.4	31	32	2-M5	9	8.5
	-	30	58	65.8	52	24	7	5.4	31	32	2-M5	9	8.5
SFF-060DS-□-□B-□B-50N	24～28	24～28	58	65.8	48	24	7	5.4	31	32	2-M5	9	8.5
SFF-060DS-□-□B-□B-50N	30	30	58	68.5	52	24	7	5.4	31	32	2-M5	9	8.5
SFF-070DS-□-□B-□B-65N	18～19	18～25	68	69.8	47	25	8	5.9	37	38	2-M6	16	16
SFF-070DS-□-□B-□B-65N	-	28～35	68	69.8	56	25	8	5.9	37	38	2-M6	16	16
SFF-080DS-□-□B-□B-120N	28～35	28～35	78	85.4	70	30	10	7.7	40	42	2-M8	37	45
SFF-080DS-□-□B-□B-120N	38	38	78	85.4	74	30	10	7.7	40	42	2-M8	37	45
SFF-090DS-□-□B-□B-150N	35～42	35～42	88	86.6	74	30	10	8.3	50	50	2-M8	37	45
SFF-100DS-□-□B-□B-250N	38～48	38～48	98	112.4	84	40	12	10.2	52	56	2-M10	68	65

* Nominal diameter of clamping bolt M1/M2 is given as number of bolts - nominal diameter, and the number is the number for one hub.

* You can choose from two types of grease for clamp bolts : low dust generation grease and fluorine grease.

[Standard bore diameter]

Model	Standard bore diameter d1・d2 [mm]
Model	8	9	9.525	10	11	12	14	15	16	17	18	19	20	22	24	25	28	30	32	35	38	40	42	45	48
SFF-040DS-□-□B-□B-8N	●	●	●	●	●	●	●	●	●
SFF-050DS-□-□B-□B-16N				●	●	●	●	●	●	●	●	●
SFF-060DS-□-□B-□B-40N						●	●	●	●	●	●	●	●	●	●	●	●	●
SFF-060DS-□-□B-□B-50N															●	●	●	●
SFF-070DS-□-□B-□B-65N											●	●	●	●	●	●	●	●	●	●
SFF-080DS-□-□B-□B-120N																	●	●	●	●	●
SFF-090DS-□-□B-□B-150N																				●	●	●	●
SFF-100DS-□-□B-□B-250N																					●	●	●	●	●

* The bore diameters marked with ● are supported as standard bore diameter.

Related Product

Basic Specifications

Max. nominal torque 525 N･m

Bore ranges 6 mm to 60 mm

Operating temperature -30℃ to 80℃

Basic Specifications

Max. rated torque 250 N･m

Bore ranges 3 mm to 45 mm

Backlash Zero

Basic Specifications

Max. transmission torque 0.623N・m（Air gap 1mm）

Bore ranges 10mm～25mm

Basic Specifications

Max. rated torque 220 N･m

Bore ranges 4 mm to 35 mm

Operating temperature -30℃ to 100℃

SFF Models

Features of SFF Models

SFF Models Specifications

Lineup

Structure and Materials

Options of SFF Models

Tapered shaft supported Single elementSupports servo motor tapered shafts.

Tapered shaft supported Double elementSupports servo motor tapered shafts.

Flange mounting supportedSupports direct drive motor and speed reducer.

Clean room compatible Single elementIt is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.

Clean room compatible Double elementIt is a clean room compatible product that has been cleaned, assembled (ISO class 6) and packed in consideration of its use in clean rooms.

Related Product