Rotary Axes / Offset on Both Sides / Optional Machining (Part Numbers - CAD Download)

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Dimensional Drawing

■ Standard

[ ! ] Surface roughness of Part D for h9 (Cold-drawn) is {{{attr2}}}

. Surface roughness for h7 (Ground) and g6 (Ground) is Rotary Shaft - Both Ends Stepped, Related Image 1

.
[ ! ] High hardness stainless steel may have a center hole.

■Tolerance Table

D·P	h9 (Cold-drawn)	h7 (Ground)	g6 (Ground)
3	0 − 0.025	0 − 0.010	− 0.002
			− 0.008
3.1 to 6	0 − 0.030	0 − 0.012	− 0.004
			− 0.012
6.1 to 10	0 − 0.036	0 − 0.015	− 0.005
			− 0.014
10.1 to 18	0 − 0.043	0 − 0.018	− 0.006
			− 0.017
18.1 to 30	0 − 0.052	0 − 0.021	− 0.007
			− 0.020
30.1 to 50	0 − 0.062	0 − 0.025	− 0.009
			− 0.025

Rotary Shaft - Both Ends Stepped, Dimensional Drawing 2

■Circularity and Straightness

■Concentricity and Perpendicularity

■Circularity of Part D

D		Circularity M
over	or Less	Circularity M
5	13	0.004
13	20	0.005
20	40	0.006
40	50	0.007

■Tolerances of L and Other Dimensions

Dimension		Dimension Tolerance
over	or Less	Dimension Tolerance
2	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5
400	1000	±0.8

[ ! ] Circularity, straightness, concentricity, and perpendicularity of Part D are not applicable to h9 (Cold-drawn).

Type		Tolerance		[M] Material	[S] Surface Treatment
		D	P·Q
(1)	NSFRMHQ	h9 (Cold-drawn)	h7	EN 1.1191 Equiv.	—
	SFRMHQ				Black Oxide
	PSFRMHQ				Electroless Nickel Plating
	SSFRMHQ			EN 1.4301 Equiv.	—
(2)	NSFRMGQ		g6	EN 1.1191 Equiv.	—
	SFRMGQ				Black Oxide
	PSFRMGQ				Electroless Nickel Plating
	SSFRMGQ			EN 1.4301 Equiv.	—
(3)	NSFRHQ	h7 (Ground)	h7	EN 1.1191 Equiv.	—
	SFRHQ				Black Oxide
	PSFRHQ				Electroless Nickel Plating
	SSFRHQ			EN 1.4301 Equiv.	—
(4)	NSFRQ	g6 (Ground)	g6	EN 1.1191 Equiv.	—
	SFRQ				Black Oxide
	PSFRQ				Electroless Nickel Plating
	SSFRQ			EN 1.4301 Equiv.	—
	HFRQ			EN 1.7220 Equiv. [H]Hardness: 30 to 35HRC	Black Oxide
	PHFRQ				Electroless Nickel Plating
	AHFRQ			High Hardness Stainless Steel Hardness: 35HRC or More	—

[!] High hardness stainless steel has a lower center hardness.

Specification Table

	Part Number	—	L	—	F	—	P	—	T	—	Q
(1) D Tol. h9 / P, Q Tol. h7 (3) h7 (Ground) (4) g6 (Ground)	SFRMHQ20 SFRHQ15 SFRQ30	— — —	325 150 400	— — —	F25 F15 F28	— — —	P10 P8 P20	— — —	T25 T15 T28	— — —	Q10 Q8 Q20

(1) D Tolerance h9 (Cold-drawn) / P, Q Tolerance h7 (2) D Tolerance h9 (Cold-drawn) / P, Q Tolerance g6

Part Number			0.1 mm Increments		1 mm Increments	(Y) max.
Type		D	L	F·T	P·Q	(Y) max.
(1) D Tol. h9 / P, Q Tol. h7 NSFRMHQ SFRMHQ PSFRMHQ SSFRMHQ (D13, 17, 18, or 22 is not available for SSFRMHQ)	(2) D Tol. h9 / P, Q Tol. g6 NSFRMGQ SFRMGQ PSFRMGQ SSFRMGQ (D13, 17, 18, or 22 is not available for SSFRMGQ)	6	15.0 to 496.0	2 ≤ F ≤ P × 5 2 ≤ T ≤ Q × 5	3 4 5	500
		8	15.0 to 496.0		3 ≤ P·Q < D	500
		10	15.0 to 796.0			800
		12	15.0 to 896.0			900
		13	15.0 to 896.0		4 ≤ P·Q < D	900
		15	15.0 to 996.0			1000
		16	15.0 to 996.0
		17	24.0 to 996.0		5 ≤ P·Q < D
		18	24.0 to 996.0
		20	24.0 to 996.0
		22	24.0 to 996.0		6 ≤ P·Q < D
		25	24.0 to 996.0		8 ≤ P·Q < D
		30	24.0 to 996.0		8 ≤ P·Q < D
		35	40.0 to 996.0		16 ≤ P·Q < D

(3) h7 (Ground)

Part Number		0.1 mm Increments		1 mm Increments	(Y) max.
Type	D	L	F·T	P·Q	(Y) max.
NSFRHQ SFRHQ PSFRHQ SSFRHQ	6	15.0 to 496.0	2 ≤ F ≤ P × 5 2 ≤ T ≤ Q × 5	3 4 5	500
	8	15.0 to 496.0		3 ≤ P·Q < D	500
	10	15.0 to 796.0			800
	12	15.0 to 896.0			900
	15	15.0 to 996.0		4 ≤ P·Q < D	1000
	17	24.0 to 996.0		5 ≤ P·Q < D	1000
	20	24.0 to 996.0		5 ≤ P·Q < D	1000
	25	24.0 to 996.0		8 ≤ P·Q < D
	30	24.0 to 996.0		8 ≤ P·Q < D
	35	40.0 to 996.0		16 ≤ P·Q < D
	40	40.0 to 996.0
	50	40.0 to 996.0

(4) g6 (Ground)

Part Number			0.1 mm Increments		1 mm Increments	(Y) max.
Type	D		L	F·T	P·Q	(Y) max.
NSFRQ SFRQ PSFRQ SSFRQ * HFRQ (D15, 20, 25, 30, 35, 40, and 50 are available for HFRQ) 　 * PHFRQ (D15, 20, 25, 30, 35, 40, and 50 are available for PHFRQ) 　 AHFRQ (Only * marked sizes are available.)	*	6	15.0 to 496.0	2 ≤ F ≤ P × 5 2 ≤ T ≤ Q × 5 AHFRQ only 2 ≤ F ≤ P × 4 2 ≤ T ≤ Q × 4	3 4 5	500
	*	8	15.0 to 496.0		3 ≤ P·Q < D	500
	*	10	15.0 to 796.0			800
	*	12	15.0 to 896.0			900
		13	15.0 to 896.0		4 ≤ P·Q < D	900
	*	15	15.0 to 996.0			1000
	*	16	15.0 to 996.0
		17	24.0 to 996.0		5 ≤ P·Q < D
		18	24.0 to 996.0
	*	20	24.0 to 996.0			1000
		22	24.0 to 996.0		6 ≤ P·Q < D
	*	25	24.0 to 996.0		8 ≤ P·Q < D
		30	24.0 to 996.0		8 ≤ P·Q < D
		35	40.0 to 996.0		16 ≤ P·Q < D
		40	40.0 to 996.0
		50	40.0 to 996.0

[ ! ] When D - P (Q) ≤ 2, chamfer C at the step is 0.2 or less.
For P and Q Dimensions 27, 31, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49 cannot be specified.
[NG] For HFRQ and PHFRQ, D dimensions 35 to 50 are up to 800 in overall length (Y dimensions).
[NG] For AHFRQ, D dimensions 10 to 25 are up to 800 in overall length (Y dimension).

Alterations

Alterations
Code

Alteration Details

Applicable Conditions

Ordering Example

Keyway at One Location

KC, A = 0.1 mm Increments

[ ! ] When the keyway position is less than 1 mm away from the end face,
R is not applied.

[ ! ] Key Length ≤ 100
[ NG ] Not applicable when Shaft Dia. ≤ ø5

SFRMHQ30-300-F25-P10-T25-Q10-KC20-A10

WKC

Keyways at Two Locations

WKC, C, K, E = 0.1 mm Increments

[ ! ] When the keyway position is less than 1 mm away from the end face,
R is not applied.

[ ! ] Key Length ≤ 100
[ NG ] Not applicable when Shaft Dia. ≤ ø5

SFRMHQ30-300-F25-P10-T25-Q10-WKC5-C20-K5-E10

Keyway (1 Location (for 4th Location))

KZ, Z = 0.1 mm Increments

[ ! ] When the keyway position is less than 1 mm away from the end face,
R is not applied.

[ ! ] Key Length ≤ 100 [ NG ] Not applicable when Shaft Dia. ≤ ø5
[ ! ] Applicable only when combined with both KC and WKC

SFRMHQ30-300-F25-P10-T25-Q10-KC5-A10-WKC20-C10-K60-E10-KZ100-Z10

PKC·QKC

Keyway on Step P (0 Point on the End Face)

PKC, QKC = 0.1 mm Increments
[ ! ] Keyway Length ≤ 70
[ NG ] Not applicable when P ≤ 5

SFRMHQ30-300-F25-P10-T25-Q10-PKC20.0

PP·QQ

Keyway on Step P (Position Specification)

PP, PK = 0.1 mm Increments QQ, QK = 0.1 mm Increments
[ ! ] Keyway Length ≤ 70
[ NG ] Not applicable when P ≤ 5

SFRMHQ30-300-F25-P10-T25-Q10-PP10-PK10

PV·QV

Multiple Keyways on Step P

PV, PW = 0.1 mm Increments QV, QW = 0.1 mm Increments
[ ! ] Keyway Length ≤ 70
[ NG ] Not applicable when P ≤ 5
[ ! ] Applicable only when combined with PP or QQ

SFRMHQ30-300-F30-P10-T25-Q10-PP5-PK5-PV15-PW10

TL·TR

Retaining Ring Groove on D Part

TL, TR = 0.1 mm Increments
[ ! ]2 ≤ TL (TR) +F (T) ≤ 150　

SFRMHQ30-300-F25-P10-T25-Q10-TL5-TR5

TF·TT

Retaining Ring Groove on Step

TF, TT = 0.1 mm Increments
[ ! ]2 ≤ TF (TT) ≤ 150

SFRMHQ30-300-F25-P10-T25-Q10-TF5

Set Screw Flat at One Location

FC, G = 1 mm Increments
[ ! ]G ≤ 70

SFRMHQ30-300-F25-P10-T25-Q10-FC10-G3

WFC

Set Screw Flats at Two Locations

WFC, J, W, V = 1 mm Increments
[ ! ]J·V ≤ 70

SFRMHQ30-300-F25-P10-T25-Q10-WFC10-J15-W10-V20

SFC

Set Screw Flat, 2 Set Screw Flats (Angle Specified)

SFC, SG = 1 mm Increments AG = 15° Increments
[ ! ]SG ≤ 70

SFRMHQ30-300-F25-P10-T25-Q10-SFC10-SG3-AG120

PFC·QFC

Set Screw Flat on Step

PFC, LC = 1 mm Increments QFC, RC = 1 mm Increments
[ ! ]LC·RC ≤ 70

SFRMHQ30-300-F25-P10-T25-Q10-PFC5-LC10

KWC

Set Screw Flat, 2 Set Screw Flats on Both Ends

KWC = 1 mm Increments
[ ! ]KWC ≤ F·T [ ! ]Y ≤ 680
[NG] Not applicable to P (Q) = 4 or less

SFRMHQ30-300-F25-P10-T25-Q10-KWC25

Set Screw Flat, Chamfering Depth Configurable

WC = 0.1 mm Increments
[NG] D dimensions 6, 13, 16, 17, 18, 22 are not available
[ ! ] Only when KWC is specified, WC is available

D	WC
8·10·12	5 ≤ WC ≤ P (Q)-1
15·20	10 ≤ WC ≤ P (Q)-1
25 to 50	15 ≤ WC ≤ P (Q)-1

SFRMHQ30-300-F25-P20-T25-Q20-KWC25-WC18.0

Slit Cam Groove

UC = 1 mm Increments
[ NG ] Not applicable when Shaft Dia. = ø2 or ø2.5 or when D ≥ 13
[NG] AHFRQ is not available

SFRMHQ10-300-F25-P8-T25-Q8-UC10

LKC

L Dimension Tolerance Change

L < 500···L±0.05 L ≥ 500···L±0.1
[ NG ] Not applicable when L ≥ 800

SFRMHQ30-300-F25-P10-T25-Q10-LKC

Wrench Flats

SC = 1 mm Increments

SFRMHQ30-300-F25-P10-T25-Q10-SC10

CKC

Concentricity

Change the concentricity to 0.02.
[ NG ] Not applicable when D Tol. = h9
[NG] AHFRQ is not available
[ ! ] For Lmax, see the table on the right

D	Lmax
6 to 22	450
25 to 50	600

SFRMHQ30-300-F25-P10-T25-Q10-CKC

CP·CQ

Change of Step Chamfering

Change the size of the chamfer on the step　
* Select CP and CQ from the table
[ ! ] Only values provided on the Applicable Dia. Table are applicable

Chamfering	Applicable Dia. (P·Q)
C2	⌀6 to ⌀49
C3	⌀8 to ⌀49
C4	⌀10 to ⌀49
C5	⌀12 to ⌀49

SFRMHQ30-300-F25-P10-T25-Q10-CP4

PM·QM

Addition of Tapped to Step

PM, QM = Selected from M2, 2.6, 3·4, 5, 6, 8, 10, 12, 24, 30
[ ! ] (P-PM)/2 ≥ 0.5
[ ! ] (P (Q)-PM (QM))/2 ≥ 0.5

SFRMHQ30-300-F25-P10-T25-Q10-PM5-QM5

[!] When combined with other alterations, ± 2 degree phase differential may occur. Provide 2 mm or more clearance between this alteration and others.
[ ! ] When multiple keyways or set screw flats are specified, they are added in the same plane. When the distance of the alterations are over 500 mm, ± 2 degree phase difference may occur.

Keyway Dimensions

Shaft Dia.	b		t		r
Shaft Dia.	Reference Dimension	Tolerance (N9)	Reference Dimension	Tolerance	r
6 to 7	2	-0.004 -0.029	1.2	+0.1 0	0.08 to 0.16
8 to 10	3	-0.004 -0.029	1.8
11 to 12	4	0 -0.03	2.5
13 to 17	5		3.0		0.16 to 0.25
18 to 22	6		3.5
23 to 30	8	0 -0.036	4.0	+0.2 0
31 to 38	10	0 -0.036	5.0		0.25 to 0.4
39 to 44	12	0 -0.043	5.0
45 to 50	14	0 -0.043	5.5

Rotary Shaft - Both Ends Stepped Dimensional Drawing 3

[ ! ] b ≤ A, E, C ≤ 100
[ ! ] If 3 keyways are required, use both KC and WKC.
[!] If 4 keyways are required, use KC, WKC, and KZ. (KZ is applicable only when combined with both KC and WKC)
[NG] Not applicable to D = 2 to 5.
[ ! ] The example below shows the keyway shape for the specs KC, WKC, K = 0, KC + A ≥ L and WKC + C + K + E > L.

[ ! ] Although keyway(s) and set screw flats are added in the same plane, ±2 degree phase differential may occur.
[ ! ] When the keyway position is less than 1 mm away from the end face, R is not applied.

Detailed Retaining Ring Groove Dimensions for Rotary Shafts

Shaft Dia.	d Tolerance		Slot Width (m) Tolerance		Applicable Retaining Ring
2	1.2	+0.06 0	0.4	+0.05 0	JIS E Type 1.2
2.5	1.5		0.5		JIS E Type 1.5
3	2		0.5		JIS E Type 2
4	3		0.7	+0.1 0	JIS E Type 3
5	4	+0.075 0			JIS E Type 4
6	5				JIS E Type 5
7	6		0.9		JIS E Type 6
8	7	+0.09 0			JIS E Type 7
9	8	+0.09 0			JIS E Type 8
10	9.6	0/－0.09	1.15	+0.14 0	JIS C Type 10
11	10.5	0 -0.11			JIS C Type 11
12	11.5				JIS C Type 12
13	12.4				JIS C Type 13
14	13.4				JIS C Type 14
15	14.3				JIS C Type 15
16	15.2				JIS C Type 16
17	16.2				JIS C Type 17
18	17		1.35		JIS C Type 18
19	18		1.35		JIS C Type 19

Shaft Dia.	d Tolerance		Slot Width (m) Tolerance		Applicable Retaining Ring
20	19	0 -0.21	1.35	+0.14 0	JIS C Type 20
21	20				JIS C Type 21
22	21				JIS C Type 22
23	22				JIS C Type 23
24	22.9				JIS C Type 24
25	23.9				JIS C Type 25
26	24.9				JIS C Type 26
28	26.6		1.65		JIS C Type 28
29	27.6				JIS C Type 29
30	28.6				JIS C Type 30
32	30.3	0 -0.25			JIS C Type 32
35	33				JIS C Type 35
40	38		1.9		JIS C Type 40
45	42.5		1.9		JIS C Type 45
50	47		2.2		JIS C Type 50

[ ! ]2 ≤ TL (TR) +F (T) ≤ 150, 2 ≤ TF (TT) ≤ 150
[ ! ] An applicable retaining ring is included in the retaining ring groove.

(Reference Value) High Hardness Stainless Steel Center Hardness

D	Center Hardness (HRC)
3	35 or More
4	35 or More
5	35 or More
6	35 or More
8	35 or More
10	30 or More
12	30 or More
15	30 or More
16	30 or More
20	25 or More
25	25 or More

Mechanical Properties (Reference Value)

Material	Tensile Strength (Mpa)	Yielding Point (0.2% Proof Stress) (MPa)	Young's Modulus (GPa)	Transverse Modulus (GPa)	Poisson Ratio
Material	Tensile Strength (Mpa)	Yielding Point (0.2% Proof Stress) (MPa)	Young's Modulus (GPa)	Transverse Modulus (GPa)	Poisson Ratio
EN 1.1191 Equiv.	570 or More	345 or More	200 or More	77 or More	0.3
EN 1.4301 Equiv.	520 or More	210 or More	193 or More	74 or More	0.3
EN 1.7220 Equiv.	930 or More	785 or More	206 or More	79 or More	0.3
High Hardness Stainless Steel	1102	715	199	77	0.3

High Hardness Stainless Steel Material Properties
(Unit: %)

C	Si	Mn	P	S	Ni	Cr
0.15-0.25	≤ 0.50	7.5-9.5	≤ 0.05	≥ 0.12	1.5-3.0	13-15

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Part Number
SSFRQ20-[30-996/0.1]-F[2-95/0.1]-P[5-19/1]-T[2-95/0.1]-Q[5-19/1]
SSFRQ22-[24-996/0.1]-F[2-105/0.1]-P[6-21/1]-T[2-105/0.1]-Q[6-21/1]
SSFRQ25-[30-996/0.1]-F[2-120/0.1]-P[10-24/1]-T[2-120/0.1]-Q[10-24/1]
SSFRQ30-[30-996/0.1]-F[2-145/0.1]-P[10-29/1]-T[2-145/0.1]-Q[10-29/1]
SSFRQ35-[40-996/0.1]-F[2-170/0.1]-P[16-34/1]-T[2-170/0.1]-Q[16-34/1]
SSFRQ40-[40-996/0.1]-F[2-195/0.1]-P[16-39/1]-T[2-195/0.1]-Q[16-39/1]
SSFRQ50-[40-996/0.1]-F[2-245/0.1]-P[16-49/1]-T[2-245/0.1]-Q[16-49/1]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Material	Hardness	Surface Treatment	D Tolerance	Shaft Dia. D (mm)	Length L (mm)	P, Q Tolerance	F (mm)	FPC	P (mm)	Q (mm)	T (mm)	TPC
-	1	4 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	20	30 ～ 996	g6	2 ～ 95	-	5 ～ 19	5 ～ 19	2 ～ 95	-
-	1	6 Days	-	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	22	24 ～ 996	g6	2 ～ 105	-	6 ～ 21	6 ～ 21	2 ～ 105	-
-	1	4 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	25	30 ～ 996	g6	2 ～ 120	-	10 ～ 24	10 ～ 24	2 ～ 120	-
-	1	4 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	30	30 ～ 996	g6	2 ～ 145	-	10 ～ 29	10 ～ 29	2 ～ 145	-
-	1	6 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	35	40 ～ 996	g6	2 ～ 170	-	16 ～ 34	16 ～ 34	2 ～ 170	-
-	1	6 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	40	40 ～ 996	g6	2 ～ 195	-	16 ～ 39	16 ～ 39	2 ～ 195	-
-	1	6 Days	10	[Stainless Steel] EN 1.4301 Equiv.	No Hardened	NA	g6 (Ground)	50	40 ～ 996	g6	2 ～ 245	-	16 ～ 49	16 ～ 49	2 ～ 245	-

App. Example

Rotary Shaft - Both Ends Stepped: Related Image

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Basic information

Basic Shape	Both Ends Stepped	Environmentally friendly	RoHS Compliant (10 Substances)	End Shape (Left)	Straight
Characteristics/Applications	Not Applicable	End Shape (Right)	Straight	Keyway	Keyway Option (Alteration)
Cleaning Method	No Cleaning	Wrench Flats	Wrench flats option (alteration)

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Basic Attributes

Material
- Steel
  - EN 1.1191 Equiv.
  - EN 1.7220 Equiv.
- Stainless Steel
  - EN 1.4301 Equiv.
  - Stainless Steel, austenitic (high hardness: 35 HRC or More)
Clear
Hardness
- No Hardened
- Hardened
Clear
Surface Treatment
- NA
- Surface Treatment Provided
  - Black Oxide
  - Electroless Nickel Plating
Clear
D Tolerance
- h9 (Cold-drawn)
- h7 (Ground)
- g6 (Ground)
Clear
Shaft Dia. D(mm)
6

8

10

12

13

15

16

17

18

20

22

25

30

35

40

50
Clear
Length L(mm)
[15-996/0.1mm Unit(s)]
Clear
P, Q Tolerance
- g6
- h7
Clear
F(mm)
[2-245/0.1mm Unit(s)]
Clear
FPC
[2-70/0.01]
Clear
P(mm)
[3-49/1mm Unit(s)]
Clear
Q(mm)
[3-49/1mm Unit(s)]
Clear
T(mm)
[2-245/0.1mm Unit(s)]
Clear
TPC
[2-70/0.01]
Clear
Type
- AHFRQ
- HFRQ
- NSFRHQ
- NSFRMGQ
- NSFRMHQ
- NSFRQ
- PHFRQ
- PSFRHQ
- PSFRMGQ
- PSFRMHQ
- PSFRQ
- SFRHQ
- SFRMGQ
- SFRMHQ
- SFRQ
- SSFRHQ
- SSFRMGQ
- SSFRMHQ
- SSFRQ
Clear
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