Metric Ground Worm, Worm Gears Module 3~4

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

Specifications
Catalog No.	SWG	AG
Precision grade	KHK W 001 grade 2	KHK W 002 grade 2
Reference section of gear	Axial	Rotating plane
Gear teeth	JIS 3 type Standard full depth	Standard full depth
Normal pressure angle	20	20
Material	S45C (Carbon steel)	ABC2 (Aluminum bronz) (Hub of H4,H5 style is FC200)
Heat treatment	Teeth induction hardened	-
Surface hardness	HRC4853	-
Surface treatment	Black oxide except ground surfaces	-
Surface finish	Ground	Cut
Datum reference surface for gear cutting and grinding	Bore	Bore

W3	H1
H4	H5

Module 3 Ground Worms

Catalog No.	Number of start	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 start	Hand of thread	L_H7	M	N	O	P	Q	Q'	R	Size	S	Shape	Weight (kgf)
SWG3-R1 [ DXF \| DWG \| 3D CAD] SWG3-R2 [ DXF \| DWG \| 3D CAD] SWG3-R3 [ DXF \| DWG \| 3D CAD]	1 2 3	R R R	16 16 16	35 35 35	44 44 44	50 50 50	50 50 50	20 20 20	4 4 4	74 74 74	- - -	- - -	W3 W3 W3	0.6 0.6 0.6

Lead Angle R1 3

54' R2 7

46' R3 11

34'

Module 3 Worm Gears

Catalog No.	Reduction ratio	No. of teeth	Number of start	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	Number of start	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.
AG3-20R1 [ DXF\|DWG \| 3D CAD] AG3-20R2 [ DXF\|DWG \| 3D CAD] AG3-30R1 [ DXF\|DWG \| 3D CAD] AG3-30R2 [ DXF\|DWG \| 3D CAD] AG3-30R3 [ DXF\|DWG \| 3D CAD]	1/20 1/10 1/30 1/15 1/10	20 20 30 30 30	1 2 1 2 3	R R R R R	20 20 20 20 20	50 50 55 55 55	60 60 90 90 90	66 66 96 96 96	69 69 99 99 99	25 25 25 25 25	18 18 18 18 18	- - - - -	43 43 43 43 43	- - - - -	- - - - -	52 52 67 67 67	H1 H1 H4 H4 H4	3.15 2.9 6.97 6.4 6.36	30.93 28.41 68.35 62.78 62.35	0.190.26 0.190.26 0.190.26 0.190.26 0.190.26	0.75 0.75 1.4 1.4 1.4	AG3-20R1 AG3-20R2 AG3-30R1 AG3-30R2 AG3-30R3
AG3-40R1 [ DXF\|DWG \| 3D CAD] AG3-45R3 [ DXF\|DWG \| 3D CAD] AG3-50R1 [ DXF\|DWG \| 3D CAD] AG3-60R1 [ DXF\|DWG \| 3D CAD]	1/40 1/15 1/50 1/60	40 45 50 60	1 3 1 1	R R R R	20 20 20 20	65 70 75 85	120 135 150 180	126 141 156 186	129 144 159 189	25 25 25 25	18 18 18 18	- - - -	43 43 43 43	10 11 15 15	103 120 130 155	82 89.5 97 112	H5 H5 H5 H5	12.26 14.05 18.81 26.58	120.2 137.8 184.5 260.7	0.190.26 0.190.26 0.190.26 0.190.26	2.3 2.5 3.2 4.3	AG3-40R1 AG3-45R3 AG3-50R1 AG3-60R1

*NOTE:*	Allowable torques shown in the table are the calculated values according to JGMA Standards 405-01 when the worm is rotating at 600 rpm, The table below shows the allowable worm gear torques at selected worm speeds.

AG3 Allowable Worm Gear Torques(kgfm)

Catalog No.	Worms rpm
Catalog No.	30	100	300	600	900	1200	1800
AG3-20R1 AG3-20R2 AG3-30R1 AG3-30R2 AG3-30R3 AG3-40R1 AG3-45R3 AG3-50R1 AG3-60R1	6.07 5.99 12.82 12.74 13.16 21.94 27.99 33.16 46.40	4.97 4.78 10.63 10.40 10.50 18.22 22.84 27.56 38.76	3.87 3.58 8.41 7.91 7.86 14.62 17.38 22.30 31.39	3.15 2.90 6.97 6.40 6.36 12.26 14.05 18.81 26.58	2.75 2.50 6.11 5.61 5.48 10.75 12.33 16.63 23.74	2.51 2.26 5.56 5.07 4.97 9.83 11.13 15.26 21.71	2.13 1.89 4.78 4.30 4.14 8.41 9.44 13.04 18.67

Module 4 Ground Worms

Catalog No.	Number of start	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 start	Hand of thread	L_H7	M	N	O	P	Q	Q'	R	Size	S	Shape	Weight (kgf)
SWG4-R1 [ DXF\|DWG \| 3D CAD] SWG4-R2 [ DXF\|DWG \| 3D CAD] SWG4-R3 [ DXF\|DWG \| 3D CAD]	1 2 3	R R R	22 22 22	50 50 50	62 62 62	70 70 70	70 70 70	25 25 25	5 5 5	100 100 100	- - -	- - -	W3 W3 W3	1.7 1.7 1.7

Lead Angle R1 3

41' R2 7

21' R3 10

57'

Module 4 Worm Gears

Catalog No.	Reduction ratio	No. of teeth	Number of start	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	Number of start	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.
AG4-20R1 [ DXF\|DWG \| 3D CAD] AG4-20R2 [ DXF\|DWG \| 3D CAD] AG4-30R1 [ DXF\|DWG \| 3D CAD] AG4-30R2 [ DXF\|DWG \| 3D CAD] AG4-30R3 [ DXF\|DWG \| 3D CAD]	1/20 1/10 1/30 1/15 1/10	20 20 30 30 30	1 2 1 2 3	R R R R R	20 20 20 20 20	60 60 65 65 65	80 80 120 120 120	88 88 128 128 128	92 92 132 132 132	30 30 30 30 30	20 20 20 20 20	- - - - -	50 50 50 50 50	- - - - -	- - - - -	71 71 91 91 91	H1 H1 H4 H4 H4	5.94 5.45 13.12 12.05 11.96	58.21 53.48 128.7 118.2 117.3	0.220.29 0.220.29 0.220.29 0.220.29 0.220.29	1.5 1.5 2.5 2.5 2.5	AG4-20R1 AG4-20R2 AG4-30R1 AG4-30R2 AG4-30R3
AG4-40R1 [ DXF\|DWG \| 3D CAD] AG4-45R3 [ DXF\|DWG \| 3D CAD] AG4-50R1 [ DXF\|DWG \| 3D CAD] AG4-60R1 [ DXF\|DWG \| 3D CAD]	1/40 1/15 1/50 1/60	40 45 50 60	1 3 1 1	R R R R	20 20 20 20	80 90 90 100	160 180 200 240	168 188 208 248	172 192 212 252	30 30 30 30	20 20 20 20	- - - -	50 50 50 50	15 12 16 17	133 153 173 210	111 121 131 151	H5 H5 H5 H5	23.07 26.43 35.41 50.03	226.2 259.2 347.2 490.6	0.220.29 0.220.29 0.220.29 0.220.29	4.4 5.5 6.5 8.5	AG4-40R1 AG4-45R3 AG4-50R1 AG4-60R1

*CAUTION:*	Before assembling or performing any secondary operations, please carefully read the "Application Hints" at the beginning of this section.

AG4 Allowable Worm Gear Torques(kgfm)

Catalog No.	Worms rpm
Catalog No.	30	100	300	600	900	1200	1800
AG4-20R1 AG4-20R2 AG4-30R1 AG4-30R2 AG4-30R3 AG4-40R1 AG4-45R3 AG4-50R1 AG4-60R1	11.75 11.60 24.83 24.67 25.47 42.49 54.17 64.23 89.86	9.54 9.17 20.41 19.95 20.14 34.98 43.80 52.91 74.40	7.41 6.85 16.07 15.13 15.03 27.96 33.21 42.65 60.03	5.94 5.45 13.12 12.05 11.96 23.07 26.43 35.41 50.03	5.21 4.73 11.57 10.63 10.38 20.38 23.33 31.51 44.97	4.66 4.20 10.31 9.40 9.20 18.22 20.61 28.29 40.27	3.91 3.47 8.80 7.92 7.62 15.49 17.35 24.01 34.39

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