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Plastic helical gear (PN3-13R)

KOHARA GEAR INDUSTRY

Employing lightweight MC901 material, this screw gear can even be used without lubrication. Prone to wear and galling, so different combinations of materials are recommended.

Part Number

Configured Part Number is shown.

PN3-13R

Product Specifications
Part Numbers
Catalog

Drawing

Product Specifications

External appearance

Common Specifications
Accuracy Class	JIS B 1702-1 Class N9 (*1)	Materials	MC901
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
Helix angle	45°	Alteration	Possible

Former JIS B 1702 Class 5 this product is a notation accuracy grade "equivalent product."

Standard table

Catalog Symbol	Module	No. of teeth	Helix direction	Shape	Hole diameter A	Boss Diameter B	Reference circle Diameter C	Tooth tip circle Diameter D	Tooth width E	Hub Length F	Overall Length G	Tolerance Tooth flank strength (kgf ⋅ m)	Backlash Upper limit (mm)	Weight (kg)
PN1.5-10R	1.5	10	R	S1	6	16	21.21	24.21	15	10	25	0.029	0.38	0.0077
PN1.5-10L	1.5	10	L	S1	6	16	21.21	24.21	15	10	25	0.029	0.38	0.0077
PN1.5-13R	1.5	13	R	S1	8	23	27.58	30.58	15	10	25	0.063	0.38	0.014
PN1.5-13L	1.5	13	L	S1	8	23	27.58	30.58	15	10	25	0.063	0.38	0.014
PN1.5-15R	1.5	15	R	S1	8	25	31.82	34.82	15	10	25	0.096	0.38	0.018
PN1.5-15L	1.5	15	L	S1	8	25	31.82	34.82	15	10	25	0.095	0.38	0.018
PN1.5-20R	1.5	20	R	S1	10	30	42.43	45.43	15	10	25	0.22	0.38	0.031
PN1.5-20L	1.5	20	L	S1	10	30	42.43	45.43	15	10	25	0.22	0.38	0.031
PN2-10R	2	10	R	S1	10	22	28.28	32.28	20	15	35	0.068	0.42	0.018
PN2-10L	2	10	L	S1	10	22	28.28	32.28	20	15	35	0.068	0.42	0.018
PN2-13R	2	13	R	S1	10	30	36.77	40.77	20	15	35	0.14	0.42	0.034
PN2-13L	2	13	L	S1	10	30	36.77	40.77	20	15	35	0.14	0.42	0.034
PN2-15R	2	15	R	S1	10	35	42.43	46.43	20	15	35	0.22	0.42	0.046
PN2-15L	2	15	L	S1	10	35	42.43	46.43	20	15	35	0.22	0.42	0.046
PN2-20R	2	20	R	S1	12	45	56.57	60.57	20	15	35	0.49	0.44	0.081
PN2-20L	2	20	L	S1	12	45	56.57	60.57	20	15	25	0.49	0.44	0.081
PN2.5-10R	2.5	10	R	S1	10	26	35.36	40.36	22	16	38	0.13	0.44	0.031
PN2.5-10L	2.5	10	L	S1	10	26	35.36	40.36	22	16	38	0.13	0.44	0.031
PN2.5-13R	2.5	13	R	S1	12	35	45.96	50.96	22	16	38	0.27	0.44	0.055
PN2.5-13L	2.5	13	L	S1	12	35	45.96	50.96	22	16	38	0.27	0.44	0.055
PN2.5-15R	2.5	15	R	S1	12	40	53.03	58.03	22	16	38	0.41	0.46	0.075
PN2.5-15L	2.5	15	L	S1	12	40	53.03	58.03	22	16	38	0.41	0.46	0.075
PN2.5-20R	2.5	20	R	S1	12	60	70.71	75.71	22	16	38	0.92	0.46	0.15
PN2.5-20L	2.5	20	L	S1	12	60	70.71	75.71	22	16	38	0.92	0.46	0.15
PN3-10R	3	10	R	S1	12	34	42.43	48.43	25	18	43	0.22	0.52	0.054
PN3-10L	3	10	L	S1	12	34	42.43	48.43	25	18	43	0.22	0.52	0.054
PN3-13R	3	13	R	S1	15	45	55.15	61.15	25	18	43	0.46	0.54	0.094
PN3-13L	3	13	L	S1	15	45	55.15	61.15	25	18	43	0.46	0.54	0.094
PN3-15R	3	15	R	S1	15	50	63.64	69.64	25	18	43	0.69	0.54	0.12
PN3-15L	3	15	L	S1	15	50	63.64	69.64	25	18	43	0.69	0.54	0.12
PN3-20R	3	20	R	S1	15	60	84.85	90.85	25	18	43	1.53	0.54	0.21
PN3-20L	3	20	L	S1	15	60	84.85	90.85	25	18	43	1.53	0.54	0.21

* Linking with outer diameter diagram

Usage examples

Operating method and usage examples

For General Industry

Cautions/prohibitions

1. The material of plastic gears expands and contracts depending on the temperature and humidity, and the dimensions such as hole diameter (H8 when manufactured), tip diameter, backlash change. Please check "design of plastic gears" in the gear technical data for your study.
2. Using the same material for screw gears may cause wear and galling, so the combination with other materials is recommendable.
3. The allowable torque shown above is a reference value calculated under arbitrary usage conditions. Please check the precautions for details.
4. The backlash shown above is the normal backlash when assembled with the same part number at theoretical value.
5. 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).

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.
3. Plastic gears are products that are easily affected by temperature and humidity. Please note that there may be changes in dimensions during and after processing.

: 30; 45; 60

Part Number
PN3-13R

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	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 46.11	1 Piece(s)		10 Day(s)	10	3	13	Right	15	25	45	15	N9 Grade	Pilot Hole Product

Basic Information

Material(mm)	Resin	Heat Treatment(φ)	No	Ground Tooth	Presence
Surface Treatment	No	Shaft Bore Config.	Round hole	Gear Shape	Shape B
Hole Dia. Tolerance	Not Specified	Metal system material	MC901	Torsional Angle(°)	45
Keyway(mm)	NA

Please check the type/dimensions/specifications of the part PN3-13R in the Plastic helical gear series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

type
- PN
Clear
Module
1

1.5

2

2.5

3
Clear
Number of Teeth(Teeth)
10

13

15

20
Clear
Twisting Direction
- Right
- Left
Clear
Shaft Bore Dia., Shaft Dia.
6

8

10

12

15
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
Clear
Accuracy Grade
- Class N9
- N9 Grade
Clear
Shaft Hole Specifications
- Pilot Hole Product
- Pilot hole product
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

4 Day(s) or Less

5 Day(s) or Less

8 Day(s) or Less

10 Day(s) or Less

11 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 .

Similar Part Numbers

Part Number
PN1-15R
PN1-20L
PN1-20R
PN3-15L
PN3-15R
PN3-20L

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 20.71	1 Piece(s)	10 Day(s)	-	1	15	Right	6	10	18	6	Class N9	Pilot hole product
SGD 21.17	1 Piece(s)	10 Day(s)	-	1	20	Left	8	10	25	8	Class N9	Pilot hole product
SGD 21.17	1 Piece(s)	10 Day(s)	-	1	20	Right	8	10	25	8	Class N9	Pilot hole product
SGD 57.82	1 Piece(s)	10 Day(s)	10	3	15	Left	15	25	50	15	N9 Grade	Pilot Hole Product
SGD 57.82	1 Piece(s)	10 Day(s)	10	3	15	Right	15	25	50	15	N9 Grade	Pilot Hole Product
SGD 86.22	1 Piece(s)	5 Day(s) or more	10	3	20	Left	15	25	60	15	N9 Grade	Pilot Hole Product

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Plastic helical gear (PN3-13R)

Drawing

Product Specifications

Standard table

Usage examples

Operating method and usage examples

Cautions/prohibitions

Cautions/prohibitions

Precautions for alteration

Basic Information

Configure

Specification/Dimensions

type

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

CAD

Days to Ship

Specify Alterations

Similar Part Numbers

Tech Support

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