Metric Stainless Steel Worms, Plastic Worm Gears Module 1~1.5

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

Specifications
Catalog No.	SUW	PG
Precision grade	KHK W 001 grade 4	KHK W 002 grade 5
Reference section of gear	Normal plane	Normal plane
Gear teeth	JIS 3 type Standard full depth	Standard full depth
Normal pressure angle	20	20
Material	SUS303 (Stainless steel)	MC901 (Nylon)
Heat treatment	-	-
Surface hardness	less than HB187	-
Surface treatment	-	-
Surface finish	Cut	Cut
Datum reference surface for gear cutting	Bore	Bore


W2	W1	H1

Module 1 Worms

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Catalog No.	Number of starts	Hand of thread	Bore	Hub dia.	Pitch dia.	Outside dia.	Face width	Hub width (R)	Hub width (L)	Total length	Screw		Shape	Weight (kgf)
Catalog No.	Number of starts	Hand of thread	L_H7	M	N	O	P	Q	Q'	R	Size	S	Shape	Weight (kgf)
SUW1-R1 [ DXF \| DWG \| 3D CAD] SUW1-R2 [ DXF \| DWG \| 3D CAD]	1 2	R R	6 6	- -	16 16	18 18	- -	- -	- -	32 32	M4 M4	5 5	W2 W2	0.04 0.04

Lead Angle R1 3

35' R2 7

11'

NOTE: These worms with shape W2 are supplied with a set screw.

Module 1 Worm Gears

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Catalog No.	Reduction ratio	No. of teeth	Coefficient of profile shift	Number of starts	Hand of thread	Bore	Hub dia.	Pitch dia.	Throat dia.	Outside dia.	Face width	Hub width (R)	Hub width (L)	Total length	Web thickness	Web O.D.	Mounting distance	Shape	Allowable torque (kgfm)	Allowable torque (Nm)	Backlash (mm)	Weight (kgf)	Catalog No.
Catalog No.	Reduction ratio	No. of teeth	Coefficient of profile shift	Number of starts	Hand of thread	A_H7	B	C	D	D'	E	F	F'	G	H	I	J	Shape	Surface durability	Surface durability	Backlash (mm)	Weight (kgf)	Catalog No.
PG1-20R1 [ DXF \| DWG \| 3D CAD] PG1-20R2 [ DXF \| DWG \| 3D CAD] PG1-30R1 [ DXF \| DWG \| 3D CAD] PG1-40R1 [ DXF \| DWG \| 3D CAD] PG1-50R1 [ DXF \| DWG \| 3D CAD]	1/20 1/10 1/30 1/40 1/50	20 20 30 40 50	-0.02 -0.079 -0.029 -0.039 -0.049	1 2 1 1 1	R R R R R	6 6 6 8 8	16 16 20 26 30	20.04 20.16 30.06 40.08 50.1	22 22 32 42 52	23 23 33 43 53	10 10 10 10 10	10 10 10 10 10	- - - - -	20 20 20 20 20	- - - - -	- - - - -	18 18 23 28 33	H1 H1 H1 H1 H1	0.06 0.06 0.1 0.15 0.2	0.62 0.62 1.03 1.49 1.96	0.10.2 0.10.2 0.10.2 0.10.2 0.10.2	0.006 0.006 0.01 0.02 0.03	PG1-20R1 PG1-20R2 PG1-30R1 PG1-40R1 PG1-50R1

Module 1.5 Worms

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Catalog No.	Number of starts	Hand of thread	Bore	Hub dia.	Pitch dia.	Outside dia.	Face width	Hub width (R)	Hub width (L)	Total length	Screw		Shape	Weight (kgf)
Catalog No.	Number of starts	Hand of thread	L_H7	M	N	O	P	Q	Q'	R	Size	S	Shape	Weight (kgf)
SUW1.5-R1 [ DXF \| DWG \| 3D CAD] SUW1.5-R2 [ DXF \| DWG \| 3D CAD]	1 2	R R	8 8	20 20	25 25	28 28	30 30	10 10	0 0	40 40	- -	- -	W1 W1	0.12 0.12

Lead Angle R1 3

26' R2 6

54'

Module 1.5 Worm Gears

Please click on the catalog number to view pricing and availability

Catalog No.	Reduction ratio	No. of teeth	Coefficient of profile shift	Number of starts	Hand of thread	Bore	Hub dia.	Pitch dia.	Throat dia.	Outside dia.	Face width	Hub width (R)	Hub width (L)	Total length	Web thickness	Web O.D.	Mounting distance	Shape	Allowable torque (kgfm)	Allowable torque (Nm)	Backlash (mm)	Weight (kgf)	Catalog No.
Catalog No.	Reduction ratio	No. of teeth	Coefficient of profile shift	Number of starts	Hand of thread	A_H7	B	C	D	D'	E	F	F'	G	H	I	J	Shape	Surface durability	Surface durability	Backlash (mm)	Weight (kgf)	Catalog No.
PG1.5-20R1 [ DXF \| DWG \| 3D CAD] PG1.5-20R2 [ DXF \| DWG \| 3D CAD]	1/20 1/10	20 20	-0.018 -0.021	1 2	R R	8 8	22 22	30.05 30.22	33 33	34.5 34.5	12 12	10 10	- -	22 22	- -	- -	27.5 27.5	H1 H1	0.17 0.17	1.66 1.68	0.120.22 0.120.22	0.015 0.015	PG1.5-20R1 PG1.5-20R2

*CAUTION:*	Before assembling or performing any secondary operations, please carefully read the "Application Hints" in the technical section.
*CAUTION:*	These worm gears are profile shifted to create the proper center distance.
*NOTE:*	Also available on a made to order basis are these gears made from SUS304 (AISI 304 Stainless Steel).
*NOTE:*	Allowable torques shown in the table are calculated using the Lewis formula.
*NOTE:*	SW worms may also be used to mate with PG worm gears.
*USEFUL HINT*:	Although plastic worm gears can be used without lubrication, since the heat has a large effect on these gears, use of grease or JIS Gear Oil Type 2, No.57 is recommended.