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Stainless steel helical gear (Part Numbers)

Check FAQ of this product (1 items)

KOHARA GEAR INDUSTRY

Stainless steel spiral gears are prone to wear and galling, so different combinations of materials are recommended.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers
Catalog

Drawing

Dimensional drawing

Product Specifications

External appearance

Common Specifications
Accuracy Class	JIS B 1702-1 Class N9 (*1)	Materials	SUS303
Gear reference cross section	Normal	Surface Treatment	None
Profile	Standard Gear	Tooth flank finish	Milled
Normal pressure angle	20°	Gear cutting reference cross section	Hole (H7)
Helix angle	45°	Alteration	Possible

(*1) Former JIS B 1702 Class 5

Standard table

Part number	Module	No. of teeth	Helix direction	Shape	Hole diameter A	Boss Diameter B	Reference diameter C	Tip diameter D	Tooth width E	Boss length F	Overall Length G	Allowable tooth flank strength (kgf ⋅ m)	Backlash Lower limit (mm)	Backlash Upper limit (mm)	Weight (kg)
SUN1-13R	1	13	R	S1	6	15	18.38	20.38	10	10	20	0.019	0.08	0.18	0.030
SUN1-13L	1	13	L	S1	6	15	18.38	20.38	10	10	20	0.019	0.08	0.18	0.030
SUN1-15R	1	15	R	S1	6	18	21.21	23.21	10	10	20	0.029	0.08	0.18	0.043
SUN1-15L	1	15	L	S1	6	18	21.21	23.21	10	10	20	0.029	0.08	0.18	0.043
SUN1.5-10R	1.5	10	R	S1	8	16	21.21	24.21	15	10	25	0.029	0.08	0.20	0.047
SUN1.5-10L	1.5	10	L	S1	8	16	21.21	24.21	15	10	25	0.029	0.08	0.20	0.047
SUN1.5-13R	1.5	13	R	S1	10	23	27.58	30.58	15	10	25	0.063	0.10	0.22	0.087
SUN1.5-13L	1.5	13	L	S1	10	23	27.58	30.58	15	10	25	0.063	0.10	0.22	0.087
SUN1.5-15R	1.5	15	R	S1	10	25	31.82	34.82	15	10	25	0.095	0.10	0.22	0.12
SUN1.5-15L	1.5	15	L	S1	10	25	31.82	34.82	15	10	25	0.095	0.10	0.22	0.12
SUN1.5-20R	1.5	20	R	S1	12	30	42.43	45.43	15	10	25	0.22	0.10	0.22	0.20
SUN1.5-20L	1.5	20	L	S1	12	30	42.43	45.43	15	10	25	0.22	0.10	0.22	0.20
SUN2-10R	2	10	R	S1	12	22	28.28	32.28	20	15	35	0.068	0.10	0.22	0.11
SUN2-10L	2	10	L	S1	12	22	28.28	32.28	20	15	35	0.068	0.10	0.22	0.11
SUN2-13R	2	13	R	S1	12	30	36.77	40.77	20	15	35	0.14	0.12	0.26	0.22
SUN2-13L	2	13	L	S1	12	30	36.77	40.77	20	15	35	0.14	0.12	0.26	0.22
SUN2-15R	2	15	R	S1	12	35	42.43	46.43	20	15	35	0.22	0.12	0.26	0.30
SUN2-15L	2	15	L	S1	12	35	42.43	46.43	20	15	35	0.22	0.12	0.26	0.30
SUN2-20R	2	20	R	S1	15	45	56.57	60.57	20	15	35	0.49	0.12	0.26	0.53
SUN2-20L	2	20	L	S1	15	45	56.57	60.57	20	15	35	0.49	0.12	0.26	0.53
SUN2.5-10R	2.5	10	R	S1	12	26	35.36	40.36	22	16	38	0.13	0.12	0.24	0.20
SUN2.5-10L	2.5	10	L	S1	12	26	35.36	40.36	22	16	38	0.13	0.12	0.24	0.20
SUN2.5-13R	2.5	13	R	S1	15	35	45.96	50.96	22	16	38	0.27	0.14	0.28	0.35
SUN2.5-13L	2.5	13	L	S1	15	35	45.96	50.96	22	16	38	0.27	0.14	0.28	0.35
SUN2.5-15R	2.5	15	R	S1	15	40	53.03	58.03	22	16	38	0.41	0.14	0.28	0.48
SUN2.5-15L	2.5	15	L	S1	15	40	53.03	58.03	22	16	38	0.41	0.14	0.28	0.48
SUN2.5-20R	2.5	20	R	S1	20	60	70.71	75.71	22	16	38	0.92	0.14	0.28	0.93
SUN2.5-20L	2.5	20	L	S1	20	60	70.71	75.71	22	16	38	0.92	0.14	0.28	0.93
SUN3-10R	3	10	R	S1	15	34	42.43	48.43	25	18	43	0.22	0.12	0.26	0.34
SUN3-10L	3	10	L	S1	15	34	42.43	48.43	25	18	43	0.22	0.12	0.26	0.34
SUN3-13R	3	13	R	S1	20	45	55.15	61.15	25	18	43	0.46	0.14	0.32	0.58
SUN3-13L	3	13	L	S1	20	45	55.15	61.15	25	18	43	0.46	0.14	0.32	0.58
SUN3-15R	3	15	R	S1	20	50	63.64	69.64	25	18	43	0.69	0.14	0.32	0.79
SUN3-15L	3	15	L	S1	20	50	63.64	69.64	25	18	43	0.69	0.14	0.32	0.79
SUN3-20R	3	20	R	S1	20	60	84.85	90.85	25	18	43	1.53	0.14	0.32	1.39
SUN3-20L	3	20	L	S1	20	60	84.85	90.85	25	18	43	1.53	0.14	0.32	1.39

Linking with dimensional drawings

Cautions/prohibitions

1. Using the same material for screw gears may cause wear and galling, so the combination with other materials is recommendable.
2. The allowable torque shown above is a reference value calculated under arbitrary usage conditions. Please check the precautions for details.
3. The backlash shown above is the normal backlash when assembled with the same part number at theoretical value.
4. When using for skewed shafts (screw gears), it becomes a combination of helices in the identical direction (right and right or left and left), and when using for parallel shafts (helical gears), it becomes a combination of different helices (right and left).
5. The tolerance of ø4 or less hole diameter (diameter 4 mm) is H8. Also, if the hole diameter is ø5 (diameter 5 mm) or ø6 (diameter 6 mm) and the hole length (overall length) is more that 3 times the hole diameter, the tolerance is H8 as well.

Precautions for alteration

1. For alteration to screw gears, it is necessary to check "precautions for alteration" in the precautions for safety before alteration.
2. Please refrain from processing to narrow the tooth width because it will affect the accuracy and strength of the gear.

: 30; 60; 90

Part Number
SUN1-13L
SUN1-15L
SUN1-20L
SUN1.5-10L
SUN1.5-13L
SUN1.5-15L
SUN1.5-20L
SUN2-10L
SUN2-13L
SUN2-15L
SUN2-20L
SUN2.5-10L
SUN2.5-13L
SUN2.5-15L
SUN2.5-20L
SUN3-10L
SUN3-13L
SUN3-15L
SUN3-20L

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Module	Number of Teeth (Teeth)	Twisting Direction	Shaft Bore Dia., Shaft Dia.	Tooth Width (mm)	Boss diameter B (φ)	Hole diameter A (φ)	Accuracy Grade	Shaft Hole Specifications
SGD 27.11	1 Piece(s)	8 Day(s)	10	1	13	Left	6	10	15	6	N9 Grade	Pilot Hole Product
SGD 31.08	1 Piece(s)	9 Day(s)	10	1	15	Left	6	10	18	6	N9 Grade	Pilot Hole Product
SGD 41.41	1 Piece(s)	10 Day(s)	-	1	20	Left	8	10	25	8	Class N9	Pilot hole product
SGD 29.51	1 Piece(s)	8 Day(s)	10	1.5	10	Left	8	15	16	8	N9 Grade	Pilot Hole Product
SGD 35.09	1 Piece(s)	8 Day(s)	10	1.5	13	Left	10	15	23	10	N9 Grade	Pilot Hole Product
SGD 40.76	1 Piece(s)	8 Day(s)	10	1.5	15	Left	10	15	25	10	N9 Grade	Pilot Hole Product
SGD 59.10	1 Piece(s)	8 Day(s)	10	1.5	20	Left	12	15	30	12	N9 Grade	Pilot Hole Product
SGD 42.59	1 Piece(s)	8 Day(s)	10	2	10	Left	12	20	22	12	N9 Grade	Pilot Hole Product
SGD 55.90	1 Piece(s)	8 Day(s)	10	2	13	Left	12	20	30	12	N9 Grade	Pilot Hole Product
SGD 71.80	1 Piece(s)	8 Day(s)	10	2	15	Left	12	20	35	12	N9 Grade	Pilot Hole Product
SGD 97.62	1 Piece(s)	8 Day(s)	10	2	20	Left	15	20	45	15	N9 Grade	Pilot Hole Product
SGD 61.29	1 Piece(s)	8 Day(s)	10	2.5	10	Left	12	22	26	12	N9 Grade	Pilot Hole Product
SGD 81.90	1 Piece(s)	8 Day(s)	10	2.5	13	Left	15	22	35	15	N9 Grade	Pilot Hole Product
SGD 97.21	1 Piece(s)	8 Day(s)	10	2.5	15	Left	15	22	40	15	N9 Grade	Pilot Hole Product
SGD 144.46	1 Piece(s)	8 Day(s)	10	2.5	20	Left	20	22	60	20	N9 Grade	Pilot Hole Product
SGD 81.28	1 Piece(s)	8 Day(s)	10	3	10	Left	15	25	34	15	N9 Grade	Pilot Hole Product
SGD 116.12	1 Piece(s)	8 Day(s)	10	3	13	Left	20	25	45	20	N9 Grade	Pilot Hole Product
SGD 152.23	1 Piece(s)	8 Day(s)	10	3	15	Left	20	25	50	20	N9 Grade	Pilot Hole Product
SGD 202.10	1 Piece(s)	8 Day(s)	10	3	20	Left	20	25	60	20	N9 Grade	Pilot Hole Product

Basic Information

Material(mm)	Stainless Steel	Heat Treatment(φ)	No	Ground Tooth	Presence
Surface Treatment	No	Shaft Bore Config.	Round hole	Gear Shape	Shape B
Hole Dia. Tolerance	H7	Metal system material	SUS303	Torsional Angle(°)	45
Keyway(mm)	NA

Configure

19 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Module
1

1.5

2

2.5

3
Clear
Number of Teeth(Teeth)
10

13

15

20
Clear
Shaft Bore Dia., Shaft Dia.
6

8

10

12

15

20
Clear
Tooth Width(mm)
10

15

20

22

25
Clear
Boss diameter B(φ)
15

16

18

22

23

25

26

30

34

35

40

45

50

60
Clear
Hole diameter A(φ)
6

8

10

12

15

20
Clear
Accuracy Grade
- Class N9
- N9 Grade
Clear
Shaft Hole Specifications
- Pilot Hole Product
- Pilot hole product
Clear
type
- SUN
Clear
Twisting Direction
- Right
- Left
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

4 Day(s) or Less

8 Day(s) or Less

9 Day(s) or Less

10 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What gears are suitable for use in food processing machinery?: Answer: For food processing machinery, which must be free of rust and oil, stainless steel and plastic gears are ideal.
KHK also offers a large number of various gears that are stainless steel and MC nylon, so please feel free to use them.

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

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Stainless steel helical gear (Part Numbers)

Drawing

Product Specifications

Standard table

Cautions/prohibitions

Cautions/prohibitions

Precautions for alteration

Basic Information

Configure

Specification/Dimensions

Module

Number of Teeth(Teeth)

Shaft Bore Dia., Shaft Dia.

Tooth Width(mm)

Boss diameter B(φ)

Hole diameter A(φ)

Accuracy Grade

Shaft Hole Specifications

type

Twisting Direction

CAD

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

Tech Support

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