Metric Gears, Plastic Spur Gears Module 1

Quality Transmission is the largest North American supplier of off-the-shelf metric gearing.

Specifications
Precision grade	JIS Grade N9 (JIS B 1702-1:1998) JIS Grade 5 (JIS B 1702:1976)	Core hardness	HRR115120
Gear teeth	Standard full depth	Surface hardness	HRR115120
Pressure angle	20	Surface treatment	-
Material	MC901 Nylon	Surface finish	Hobbed
Heat treatment	-	Datum reference surface for gear cutting	Bore

Module 1

Catalog No.	Module	No. of teeth	Bore	Hub dia.	Pitch dia.	Outside dia.	Face width	Hub width	Total length	Shape	Allowable torque (kgfm)	Allowable torque (Nm)	Backlash (mm)	Weight (kgf)	Catalog No.
Catalog No.	m	z	A_H8	B	C	D	E	F	G	Shape	Bending strength	Bending strength	Backlash (mm)	Weight (kgf)	Catalog No.
PS1-15 [ DXF\| DWG\| 3D CAD] PS1-16 [ DXF\| DWG\| 3D CAD] PS1-18 [ DXF\| DWG\| 3D CAD] PS1-20 [ DXF\| DWG\| 3D CAD] PS1-22 [ DXF\| DWG\| 3D CAD]	1 1 1 1 1	15 16 18 20 22	6 6 6 6 8	12 12 14 16 18	15 16 18 20 22	17 18 20 22 24	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.0419 0.0463 0.054 0.0626 0.0707	0.4109 0.454 0.5296 0.6139 0.6933	0.10.24 0.10.24 0.10.24 0.10.24 0.120.26	0.003 0.003 0.004 0.006 0.006	PS1-15 PS1-16 PS1-18 PS1-20 PS1-22
PS1-24 [ DXF\| DWG\| 3D CAD] PS1-25 [ DXF\| DWG\| 3D CAD] PS1-26 [ DXF\| DWG\| 3D CAD] PS1-28 [ DXF\| DWG\| 3D CAD] PS1-30 [ DXF\| DWG\| 3D CAD]	1 1 1 1 1	24 25 26 28 30	8 8 8 8 8	20 20 20 22 25	24 25 26 28 30	26 27 28 30 32	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.0789 0.0834 0.0879 0.0961 0.1045	0.7737 0.8179 0.862 0.9424 1.025	0.120.26 0.120.26 0.120.26 0.120.26 0.120.26	0.007 0.007 0.008 0.009 0.011	PS1-24 PS1-25 PS1-26 PS1-28 PS1-30
PS1-32 [ DXF\| DWG\| 3D CAD] PS1-35 [ DXF\| DWG\| 3D CAD] PS1-36 [ DXF\| DWG\| 3D CAD] PS1-40 [ DXF\| DWG\| 3D CAD] PS1-45 [ DXF\| DWG\| 3D CAD]	1 1 1 1 1	32 35 36 40 45	8 8 8 10 10	26 26 28 35 35	32 35 36 40 45	34 37 38 42 47	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.1135 0.1275 0.1324 0.1511 0.1748	1.113 1.25 1.298 1.482 1.714	0.120.26 0.120.26 0.120.26 0.120.26 0.120.26	0.015 0.016 0.018 0.023 0.028	PS1-32 PS1-35 PS1-36 PS1-40 PS1-45
PS1-48 [ DXF\| DWG\| 3D CAD] PS1-50 [ DXF\| DWG\| 3D CAD] PS1-55 [ DXF\| DWG\| 3D CAD] PS1-60 [ DXF\| DWG\| 3D CAD] PS1-65 [ DXF\| DWG\| 3D CAD]	1 1 1 1 1	48 50 55 60 65	10 10 10 10 10	35 35 35 35 35	48 50 55 60 65	50 52 57 62 67	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.1895 0.1995 0.2225 0.246 0.2692	1.858 1.956 2.182 2.412 2.64	0.120.26 0.120.26 0.140.28 0.140.28 0.140.28	0.03 0.032 0.037 0.042 0.048	PS1-48 PS1-50 PS1-55 PS1-60 PS1-65
PS1-70 [ DXF\| DWG\| 3D CAD] PS1-75 [ DXF\| DWG\| 3D CAD] PS1-80 [ DXF\| DWG\| 3D CAD] PS1-85 [ DXF\| DWG\| 3D CAD] PS1-90 [ DXF\| DWG\| 3D CAD]	1 1 1 1 1	70 75 80 85 90	10 10 10 10 10	40 40 40 40 40	70 75 80 85 90	72 77 82 87 92	10 10 10 10 10	10 10 10 10 10	20 20 20 20 20	S1 S1 S1 S1 S1	0.2929 0.317 0.3401 0.3635 0.3872	2.872 3.109 3.335 3.565 3.797	0.140.28 0.140.28 0.140.28 0.140.28 0.140.28	0.057 0.064 0.073 0.078 0.086	PS1-70 PS1-75 PS1-80 PS1-85 PS1-90
PS1-95 [ DXF\| DWG\| 3D CAD] PS1-100 [ DXF\| DWG\| 3D CAD]	1 1	95 100	10 10	40 40	95 100	97 102	10 10	10 10	20 20	S1 S1	0.4111 0.4353	4.031 4.269	0.140.28 0.140.28	0.095 0.104	PS1-95 PS1-100

CAUTION: Significant variations in temperature or humidity can cause changes in plastic gears (MC Nylon gears). Please see the section on plastic gears in the technical section for additional information.

NOTE: The allowable torques shown in the table are calculated using the Lewis formula. The backlash values shown are the theoretical values of a pair of identical gears in mesh. All dimensions shown in the above table(s) are listed in millimeters unless otherwise specified.

USEFUL HINT:
A key, taper pin, roll or spiral pin, set screw or pressed bushing can be used to fasten a plastic gear to a shaft. For conditions shown below, there is a tendency for the gear to loosen. Therefore, a metal hub must be used to fix the gear:

1. When the ambient temperature is high.

2. When the gear diameter is large.

3. When the gear is subjected to reversing load which causes high impact on the key.
The diagrams on the right are three examples of methods for fastening plastic gears to metal hubs. If the shape of a gear is not suitable for bolt fastening, then the overmolding of plastic on a metal hub is recommended (shown in the far right diagram).

| Home | QTC Quote Request Form | US&Canada Request Form | International Request Form | Q410 Index | Recent Ads

Quality Transmission Components
E-Mail: qtcsupport@qtcgears.com
Phone: 516-437-6700
Fax: 800-737-7436 or 516-328-3343

Related Companies:

1.	When the ambient temperature is high.
2.	When the gear diameter is large.
3.	When the gear is subjected to reversing load which causes high impact on the key.