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Product information
Specifications

SFR Models Pulley Industrial coupling Mikipulley Vietnam

Introducing SFR Models

SFR model

[Specifications]

Model	Shape type	Rated	False			Max. rotation speed ［min ^-1］	Torsional stiffness ［N･m/rad］	Axial stiffness [N/mm]	Moment of inertia ［kg･m ²］	Weight［kg］
Model	Shape type	torque ［N･m］	Song song ［mm］	Angular ［゜］	Shaft ［mm］	Max. rotation speed ［min ^-1］	Torsional stiffness ［N･m/rad］	Axial stiffness [N/mm]	Moment of inertia ［kg･m ²］	Weight［kg］
SFR-030SA1	ONE	5	0,2	1,5	±0,3	10000	396	413	6,62×10 ^-6	0,048
	B								8,65×10 ^-6	0,054
	C								10,76×10 ^-6	0,063
SFR-035SA1	C	10	0,2	1,5	±0,3	10000	607	416	26,98×10 ^-6	0,105
SFR-040SA1	ONE	12	0,2	1,5	±0,3	10000	1128	605	25,37×10 ^-6	0,103
	B								31,96×10 ^-6	0,114
	C								38,64×10 ^-6	0,128
SFR-050SA1	ONE	25	0,2	1,5	±0,3	10000	2775	658	85,36×10 ^-6	0,216
	B								105,75×10 ^-6	0,234
	C								128,36×10 ^-6	0,263

* Type A/B/C is automatically assigned by Miki Pulley according to the bore diameter combination you select and cannot be specified by the customer.

* Check the list of standard bore diameters as the rated torque may be limited by the holding capacity of the shaft connection.

* Max. Rotation speed does not take into account dynamic balance. * The torsional stiffness value is the analytical value of the element taken at a temperature of 20oC.

* Moment of inertia and mass are measured for the largest bore diameter.

[Size]

Model	Shape type	d1[mm]		d2[mm]		D[mm]	N[mm]	L[mm]	LF[mm]	LP[mm]	S[mm]	A1[mm]	A2[mm]	C[mm]	d3 [mm]	Quantity M - Nominal diameter.	Tightening torque [N・m]
Model	Shape type	Minimum.	Max.	Minimum.	Max.	D[mm]	N[mm]	L[mm]	LF[mm]	LP[mm]	S[mm]	A1[mm]	A2[mm]	C[mm]	d3 [mm]	Quantity M - Nominal diameter.	Tightening torque [N・m]
SFR-030SA1	ONE	5	10	5	10	34	21.6	37,8	12,4	11	1	8	-	3,75	15,5	1-M3	1,5 ～ 1,9
	B	5	10	More than 10	16		21.6					8	12,5			1-M3	1,5 ～ 1,9
	C	More than 10	15	More than 10	16		-					-	12,5			1-M3	1,5 ～ 1,9
SFR-035SA1	C	6	18	6	19	39	-	48	15,5	15	1	-	14	4,5	18,5	1-M4	3,4 ~ 4,1
SFR-040SA1	ONE	8	15	8	15	44	29,6	48	15,5	15	1	11	-	4,5	23,5	1-M4	3,4 ~ 4,1
	B	8	15	More than 15	24		29,6					11	17			1-M4	3,4 ~ 4,1
	C	More than 15	22	More than 15	24		-					-	17			1-M4	3,4 ~ 4,1
SFR-050SA1	ONE	8	19	8	19	56	38	59,8	20,5	17,4	0,7	14,5	-	6	29,5	1-M5	7,0 ~ 8,5
	B	8	19	Over 19 years old	30		38					14,5	22			1-M5	7,0 ~ 8,5
	C	Over 19 years old	28	Over 19 years old	30		-					-	22			1-M5	7,0 ~ 8,5

* Types A/B/C are automatically specified by Miki Pulley according to the bore diameter combination you select and cannot be specified by the customer.

* Dimension d3 is the inner diameter of the element. For dimensions d2 exceeding this value, the shaft can only be fitted up to size LF to the side hub d2.

* The nominal diameter of the clamping bolt M is equal to the quantity minus the nominal diameter of the screw thread, where the quantity is for the hub on one side.

[Standard bore diameter]

Standard bore diameter (optional), d1/d2 [mm] and limited rated torque [N･m]
Nominal hole diameter			5	6	6:35	7	8	9	9,525	10	11	12	13	14	15	16	17	18	19	20	22	24	25	28	30
Shaft tolerance	h7(h6･g6)	B	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
	j6(Optional)	J																	〇		〇	〇		〇
	k6(Optional)	K					〇	〇						〇		〇			〇		〇	〇
Bore diameters are supported for each mode	SFR-030SA1	d1	2,8	3,4	●	●	●	●	●	●	●	●	●	●	●
	SFR-030SA1	d2	2,8	3,4	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-035SA1	d1		5	5	6,6	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-035SA1	d2		5	5	6,6	●	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-040SA1	d1					9	●	●	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-040SA1	d2					9	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-050SA1	d1					18	20	22	22	●	●	●	●	●	●	●	●	●	●	●	●	●	●
	SFR-050SA1	d2					18	20	22	22	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●

* Shaft tolerance for standard bore diameter is h7 (h6 or g6): symbol B.

* Shaft tolerance j6/k6: designation J/K is optional and is only supported for bore diameters marked with ○ .

* Hole diameters marked with ● or numbers are supported as standard hole diameters. Refer to Miki Pulleys for special arrangements applicable to other bore diameters.

* The bore diameter field containing the numbers is limited in the nominal torque by the holding capacity of the shaft connection because of the small bore diameter. The numbers indicate the rated torque [N?m].