Rotary Shafts - End Shape Selectable

Brand :

MISUMI

Caution

Product Description

[Features]Shaft end shapes can be freely combined. The basic shape can be selected from straight, 1 step on 1 end, and 1 step on both ends.

Rotary shafts: end shape selectable

Shaft end shapes can be combined freely for each end. The basic shape can be straight, single step on one end, or single step on both ends. Choose the left and right end shapes (A to J), then the dimensions that apply. If only one end needs machining, select shape A for the other end.

Dimensional drawing

Blank shape (shape A at both ends)

Rotary shafts: end shape selectable

To machine only one shaft end, select shape A for the other end.
Dimension (Y) must satisfy (Y) ≤ D×50.
If dimension L is no more than the pilot hole depth of the female thread, the pilot hole may go through.
H and J machining is not symmetrical.
No retaining rings are supplied for F and G machining.

Tolerances for unspecified dimensions

Size range		Tolerance (mm)
Over	Up to	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5
400	1000	±0.8

Conforms to JIS B 0405 m class (medium).

Type	Material	Surface treatment
NSFR□□	S45C equivalent	-
SFR□□		Black oxide
PSFR□□		Electroless nickel plating
SSFR□□	SUS304	-

Left shaft end shape	Right shaft end shape	Machining conditions
A	A	-
B	B	M3–8: M ≤ D-2 M10–16: M ≤ D-3 M20, 24: M ≤ D-4 M30: M ≤ D-5
C	C	P(Q) = M(N) Specify the M(N) dimension. P(Q) does not need to be specified.
D	D	-
E	E	M3–8: M(N) ≤ P(Q)-2 M10–16: M(N) ≤ P(Q)-3 M20, 24: M(N) ≤ P(Q)-4 M30: M(N) ≤ P(Q)-5
F	F	D = 27, 31, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48 and 49 cannot be specified
G	G	P and Q = 27, 31, 33, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48 and 49 cannot be specified
H	H	Hex socket dimensions apply to D ≤ 30
J	J	R(W)-M(N)≥t D-R-M≥2 D-W-N ≥ 2 (tap depth) M×2 N×2 (see table below)

R(W)-M(N)≥t

M(N)	tmin
4–5	0.8
6–12	1.0

Part numbers and dimensions

Ordering example

Type	-	D	-	L	-	F	-	B	-	M	-	T	-	Q	-	N
SFRCE	-	D15	-	L350	-	F20	-	B16	-	M8	-	T20	-	Q14	-	N6

Type			1 mm increments	0.1 mm increments		1 mm increments			Selection			1 mm increments	C
Type	Left shaft end shape	Right shaft end shape	D	L	F, T	B, S	H, U	P, Q	M, N			R, W	C
NSFR SFR PSFR SSFR	A B C D E F G H J	A B C D E F G H J	6–50	20.0–800.0 (L≤D×50)	2≤F≤P×5 2≤T≤Q×5	When M, N ≤ 10: 2 ≤ B ≤ M×3 2 ≤ S ≤ N×3 and B ≤ F-3 S ≤ T-3 When M, N ≥ 12: 2 ≤ B ≤ M×3 2 ≤ S ≤ N×3 and B ≤ F-5 S ≤ T-5 B ≥ Pitch×3 S ≥ Pitch×3	When D, P, Q ≤ 6: 2 ≤ H, U When 6 < D, P, Q ≤ 10: 3 ≤ H, U When 10 < D, P, Q ≤ 20: 4 ≤ H, U When 20 < D, P, Q: 5 ≤ H, U	D/3 ≤ P, Q < D				D≥M+4+R D≥N+4+W R≥M+3 W≥N+3	0.5
									3	4	5
									6	8	10
									12	16	20
									24	30

D31, 37, 39, 41–44 and 46–49 cannot be selected.

Coarse thread pitch
M･N (P･Q)	pitch
3	0.5
4	0.7
5	0.8
6	1.0
8	1.25
10	1.5
12	1.75
16	2.0
20	2.5
24	3.0
30	3.5

Fine thread pitch
M･N (PMC･QMC)	pitch
3	0.35
4	0.5
5	0.5
6	0.75
8	1.0
10
12
15
17
20
25	1.5
30
35
40

Alterations

Alterations are available. Refer to the alteration table for applicable codes, dimensional limits and conditions.

For details, please see the PDF catalog.

Technical reference

Rotary shaft retaining ring groove dimensions by shaft diameter

Shaft dia.	d tolerance		Groove width (m) tolerance		Applicable retaining ring	Material
2	1.2	+0.06 0	0.4	+0.05 0	JIS type E 1.2	SUS304
2.5	1.5		0.5		JIS type E 1.5
3	2		0.5		JIS type E 2
4	3		0.7	+0.1 0	JIS type E 3
5	4	+0.075 0			JIS type E 4
6	5				JIS type E 5
7	6		0.9		JIS type E 6
8	7	+0.09 0			JIS type E 7
9	8	+0.09 0			JIS type E 8
10	9.6	0/-0.09	1.15	+0.14 0	JIS type C 10	SUS304
11	10.5	0 -0.11			JIS type C 11
12	11.5				JIS type C 12
13	12.4				JIS type C 13
14	13.4				JIS type C 14
15	14.3				JIS type C 15
16	15.2				JIS type C 16
17	16.2				JIS type C 17
18	17		1.35		JIS type C 18
19	18		1.35		JIS type C 19

Shaft dia.	d tolerance		Groove width (m) tolerance		Applicable retaining ring	Material
20	19	0 -0.21	1.35	+0.14 0	JIS type C 20	SUS304
21	20				JIS type C 21
22	21				JIS type C 22
23	22				JIS type C 23
24	22.9				JIS type C 24
25	23.9				JIS type C 25
26	24.9				JIS type C 26
28	26.6		1.65		JIS type C 28
29	27.6				JIS type C 29
30	28.6				JIS type C 30
32	30.3	0 -0.25			JIS type C 32
35	33				JIS type C 35
40	38		1.9		JIS type C 40
45	42.5		1.9		JIS type C 45
50	47		2.2		JIS type C 50

About high-hardness stainless steel: an original MISUMI material that combines high hardness, high strength and corrosion resistance. It does not correspond to any JIS SUS grade (such as SUS304 or SUS440C).

Differences from linear shafts (basic specifications)

Over	Up to	Rotary shaft (g6, h7, not hardened)	Shaft (g6, h5, hardened)	Shaft (f8, not hardened)
D		Roundness M
2	2.5	0.006	0.004	-
3	13	0.004	0.004	D5-9, 0.011
13	20	0.005	0.005	D10-17, 0.014
20	40	0.006	0.006	D18-29, 0.017
40	50	0.007	0.007	D30-49, 0.020

D	L	Rotary shaft (g6, h7, not hardened)	Shaft (g6, h5, hardened)	Shaft (f8, not hardened)
		Straightness K
2, 2.5	No condition	0.1	-	-
3, 4	No condition	0.03	(L/100)×0.05 or less	-
5	No condition	0.02	(L/100)×0.03 or less	-
6–50	100 or less	0.01	0.01 or less	No D condition: 0.025 or less
	Over 100	0.01	(L/100)×0.01 or less	No D condition (L/100)×0.025 or less

Rotary shaft (g6, h7, not hardened)	Shaft (g6, h5, hardened)
Coaxiality (male thread / stepped types)
0.06	0.1

Rotary shaft (g6, h7, not hardened)	Shaft (g6, h5, hardened)
Perpendicularity
0.05	0.2

[O-ring details]

O-ring material	Hardness	Color	Type
Urethane rubber	94	Milky white	Iron Rubber O-ring P series (NOK)
Nitrile rubber	70	Black	JIS B 2401 P series (NOK)
Nitrile rubber	90	Black
Fluororubber	70	Black