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Spur Gear m2 S45C Type (S2S20B-1212)

Volume Discount

Choose from a rich selection of hole diameters, face widths (for light load / for heavy load) and shapes (A type (without hub), B type (with hub), etc.). Directly mountable slotted keyway machined, tapped product available. RoHS-compliant. [Many hole diameter dimensions]
· Even for other bore hole specifications, MISUMI can provide additional processing of product shaft holes.

Part Number

Configured Part Number is shown.

S2S20B-1212

Product TOP

: 30; 45; 60

Part Number
S2S20B-1212

Part Number	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Number of Teeth	Shape	Shaft Bore Config.	Shaft Bore Dia., Shaft Dia. d (Ø)	Tooth Width B (mm)	Shaft Bore Tolerance	Precision (Old JIS)	Shaft Hole Specifications	Shaft hole finished	Pilot Hole Product, Completed Product	Tapped Hole Size	Set screw size	Keyway Width (mm)	Key Groove Depth (mm)	Diameter of Hub (mm)	Base material	Shape (details)
	1 Piece(s)	Available	10 Days or more	10	20	Shape B	Round hole	12	12	H7	Class 8 Equivalent	Standard shaft hole product	Round hole	Pilot Hole Product	-	-	-	-	-	-	B1

Basic Information

Material	Steel	Heat Treatment	No	Surface Treatment	No
Ground Tooth	No	Backlash	Presence	Bearing	No
Material (Details)	1045 Carbon Steel

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Tapped Hole Size
- M4
- M5
- M6
- M8
- M10
Clear
Set screw size
- M4×3
- M5×4
- M6×5
- M8×6
- M10×8
Clear
Keyway Width(mm)
- 3
- 4
- 5
- 6
- 8
- 10
- 12
- 14
Clear
Key Groove Depth(mm)
- 1.4
- 1.8
- 2.3
- 2.8
- 3.3
- 3.8
Clear
Diameter of Hub(mm)
40

85

115
Clear
Base material
- BF
Clear
type
- BF
- S2S
- S2S-TUIKAKO
Clear
Number of Teeth
8

10

12

13

14

15

16

17

18

19

20

21

22

24

25

28

30

32

35

36

38

40

42

44

45

46

48

50

52

55

56

60

64

65

70

72

75

80

85

90

100
Clear
Shape
- Shape A
- Shape B
- K-Shaped
- Groove
Clear
Shaft Bore Config.
- Round hole
- Round hole+tap
- Keyway + Tap
Clear
Shaft Bore Dia., Shaft Dia. d(Ø)
8

9

10

11

12

13

14

15

16

17

18

19

20

21

21.28

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50
Clear
Tooth Width B(mm)
12

14

20

22

33
Clear
Shaft Bore Tolerance
- Not specified
- H7
- H8
Clear
Shaft Hole Specifications
- Shaft hole processed products
- Standard shaft hole product
Clear
Shaft hole finished
- Round hole
- Round hole + keyway + tap hole
- Round hole lathed finish
- Round hole+tap hole
Clear
Pilot Hole Product, Completed Product
- Finished product
- Pilot Hole Product
Clear
Shape (details)
A1

B1

L1

K2

L2
Clear
CAD
- 2D
- 3D
Clear