Metric Ground Worm Shafts, Worm Gears Module 2~2.5

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

Specifications
Catalog No.	KWG	AGF
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	SCM440 (Alloy steel)	ABC2 (Aluminum bronz) (Hub of H8,H9 style is FC200)
Heat treatment	Teeth induction hardened after normalizing	-
Surface hardness	HRC5055	-
Surface treatment	Black oxide except ground surfaces	-
Surface finish	Ground	Cut
Datum reference surface for gear cutting and grinding	Shaft (ground portion)	Bore


W6

H6	H8

H7	H9

Module 2 Ground Worm Shafts

Catalog No.	Number of start	Hand of thread	Total length	Shaft length (L)	Neck length (L)	Face width	Neck length (R)	Shaft length (R)	Pitch dia.	Outside dia.	Neck length	Shaft dia.	Shape	Weight (kgf)
Catalog No.	Number of start	Hand of thread	J	K	L	M	N	O	P	Q	R	S	Shape	Weight (kgf)
KWG2-R1 [ DXF\|DWG \| 3D CAD] KWG2-R2 [ DXF\|DWG \| 3D CAD]	1 2	R R	200 200	35 35	25 25	40 40	25 25	75 75	22 22	26 26	17 17	25 25	W6 W6	0.7 0.7

Lead Angle R1 5

12' R2 10

18'

Module 2 Worm Gears

Catalog No.	Reduction ratio	No. of teeth	Coefficient of profile shift	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	Coefficient of profile shift	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.
AGF2-20R1 [ DXF\|DWG \| 3D CAD] AGF2-20R2 [ DXF\|DWG \| 3D CAD] AGF2-25R1 [ DXF\|DWG \| 3D CAD] AGF2-30R1 [ DXF\|DWG \| 3D CAD] AGF2-30R2 [ DXF\|DWG \| 3D CAD]	1/20 1/10 1/25 1/30 1/15	20 20 25 30 30	-0.5 -0.5 -0.5 -0.5 -0.5	1 2 1 1 2	R R R R R	12 12 12 12 12	32 32 35 38 38	40 40 50 60 60	42 42 52 62 62	44 44 54 64 64	18 18 18 18 18	12 12 12 12 12	5 5 5 5 5	35 35 35 35 35	- - - - -	- - - - -	30 30 35 40 40	H6 H6 H6 H6 H6	1.07 1.02 1.66 2.36 2.25	10.48 9.99 16.28 23.17 20.08	0.140.21 0.140.21 0.140.21 0.140.21 0.140.21	0.25 0.25 0.35 0.5 0.5	AGF2-20R1 AGF2-20R2 AGF2-25R1 AGF2-30R1 AGF2-30R2
AGF2-36R1 [ DXF\|DWG \| 3D CAD] AGF2-40R1 [ DXF\|DWG \| 3D CAD] AGF2-48R1 [ DXF\|DWG \| 3D CAD] AGF2-50R1 [ DXF\|DWG \| 3D CAD] AGF2-60R1 [ DXF\|DWG \| 3D CAD]	1/36 1/40 1/48 1/50 1/60	36 40 48 50 60	0 -0.5 +0.5 -0.5 -0.5	1 1 1 1 1	R R R R R	12 12 12 12 12	40 45 50 50 50	72 80 96 100 120	76 82 102 102 122	78 84 104 104 124	18 18 18 18 18	12 12 12 12 12	5 5 5 5 5	35 35 35 35 35	10 - 10 12 12	62 - 76 81 96	47 50 60 60 70	H6 H8 H9 H9 H9	3.38 4.15 5.9 6.38 9.01	33.19 40.74 57.85 62.53 88.36	0.140.21 0.140.21 0.140.21 0.140.21 0.140.21	0.7 0.8 1.1 1.1 1.5	AGF2-36R1 AGF2-40R1 AGF2-48R1 AGF2-50R1 AGF2-60R1

*CAUTION:*	Before assembling or performing any secondary operations, please carefully read the "Application Hints" at the beginning of this section.
*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.
*NOTE:*	The shaft O.D., S, has the tolerance +0.2/+0.1 except where ground +0.40/+0.35.

AGF2 Allowable Worm Gear Torques(kgfm)

Catalog No.	Worms rpm
Catalog No.	30	100	300	600	900	1200	1800
AGF2-20R1 AGF2-20R2 AGF2-25R1 AGF2-30R1 AGF2-30R2 AGF2-36R1 AGF2-40R1 AGF2-48RI AGF2-50R1 AGF2-60R1	1.98 2.03 2.99 4.19 4.32 5.89 7.17 10.05 10.83 15.16	1.65 1.64 2.49 3.52 3.57 4.96 6.03 8.46 9.13 12.83	1.30 1.25 2.00 2.82 2.75 4.01 4.91 6.93 7.48 10.53	1.07 1.02 1.66 2.36 2.25 3.38 4.15 5.90 6.38 9.01	0.95 0.89 1.47 2.11 2.01 3.02 3.71 5.29 5.73 8.18	0.87 0.81 1.34 1.91 1.81 2.75 3.38 4.85 5.25 7.47	0.75 0.69 1.17 1.68 1.56 2.40 2.95 4.22 4.57 6.55

Module 2.5 Ground Worm Shafts

Catalog No.	Number of start	Hand of thread	Total length	Shaft length (L)	Neck length (L)	Face width	Neck length (R)	Shaft length (R)	Pitch dia.	Outside dia.	Neck length	Shaft dia.	Shape	Weight (kgf)
Catalog No.	Number of start	Hand of thread	J	K	L	M	N	O	P	Q	R	S	Shape	Weight (kgf)
KWG2.5-R1 [ DXF\|DWG \| 3D CAD] KWG2.5-R2 [ DXF\|DWG \| 3D CAD]	1 2	R R	250 250	50 50	27 27	46 46	27 27	100 100	30 30	35 35	23 23	30 30	W6 W6	1.3 1.3

Lead Angle R1 4

46' R2 9

28'

Module 2.5 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.
AGF2.5-20R1 [ DXF\|DWG \| 3D CAD] AGF2.5-20R2 [ DXF\|DWG \| 3D CAD] AGF2.5-25R1 [ DXF\|DWG \| 3D CAD] AGF2.5-30R1 [ DXF\|DWG \| 3D CAD] AGF2.5-30R2 [ DXF\|DWG \| 3D CAD]	1/20 1/10 1/25 1/30 1/15	20 20 25 30 30	1 2 1 1 2	R R R R R	12 12 12 12 12	35 35 40 40 40	50 50 62.5 75 75	55 55 67.5 80 80	57.5 57.5 70 82.5 82.5	20 20 20 20 20	15 15 15 15 15	5 5 5 5 5	40 40 40 40 40	- - - 10 10	- - - 60 60	40 40 46.25 52.5 52.5	H6 H6 H6 H7 H7	1.9 1.74 2.95 4.2 3.86	18.62 17.11 28.92 41.16 37.81	0.170.24 0.170.24 0.170.24 0.170.24 0.170.24	0.4 0.4 0.6 0.8 0.8	AGF2.5-20R1 AGF2.5-20R2 AGF2.5-25R1 AGF2.5-30R1 AGF2.5-30R2
AGF2.5-36R1 [ DXF\|DWG \| 3D CAD] AGF2.5-40R1 [ DXF\|DWG \| 3D CAD] AGF2.5-48R1 [ DXF\|DWG \| 3D CAD] AGF2.5-50R1 [ DXF\|DWG \| 3D CAD] AGF2.5-60R1 [ DXF\|DWG \| 3D CAD]	1/36 1/40 1/48 1/50 1/60	36 40 48 50 60	1 1 1 1 1	R R R R R	12 12 12 12 12	45 45 50 55 60	90 100 120 125 150	95 105 125 130 155	97.5 107.5 127.5 132.5 157.5	20 20 20 20 20	15 15 15 15 15	5 5 5 5 5	40 40 40 40 40	- 12 13 13 13	- 80 97 100 125	60 65 75 77.5 90	H8 H9 H9 H9 H9	6.01 7.38 10.48 11.33 16.01	58.97 72.38 102.8 111.1 157	0.170.24 0.170.24 0.170.24 0.170.24 0.170.24	1.2 1.3 1.7 1.9 2.6	AGF2.5-36R1 AGF2.5-40R1 AGF2.5-48R1 AGF2.5-50R1 AGF2.5-60R1

*CAUTION:*	Do not take heavy cuts when performing secondary operations on worm shafts to avoid bending them.

AGF2.5 Allowable Worm Gear Torques(kgfm)

Catalog No.	Worms rpm
Catalog No.	30	100	300	600	900	1200	1800
AGF2.5-20R1 AGF2.5-20R2 AGF2.5-25R1 AGF2.5-30R1 AGF2.5-30R2 AGF2.5-36R1 AGF2.5-40R1 AGF2.5-48R1 AGF2.5-50R1 AGF2.5-60R1	3.57 3.53 5.40 7.56 7.51 10.63 12.93 18.13 19.54 27.34	2.96 2.84 4.48 6.33 6.18 8.91 10.84 15.21 16.40 23.06	2.31 2.13 3.54 5.01 4.71 7.12 8.71 12.31 13.29 18.70	1.90 1.74 2.95 4.20 3.86 6.01 7.38 10.48 11.33 16.01	1.66 1.51 2.57 3.69 3.39 5.29 6.49 9.26 10.04 14.33	1.51 1.36 2.35 3.34 3.05 4.80 5.91 8.47 9.17 13.06	1.30 1.16 2.04 2.93 2.63 4.20 5.15 7.36 7.99 11.44

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