Quality Transmission is the largest North American supplier of off-the-shelf metric gearing. KHK Stock Gears are proudly produced by Kohara Gear Industry of Saitama Japan and stocked in North America by Quality Transmission Components



Specifications
Catalog No. KWGDL KWGDLS AGDL
Precision grade KHK W 001 grade 1 KHK W 001 grade 1 KHK W 002 grade 1
Reference section
of gear		 Axial Axial Rotating plane
Gear teeth JIS 3 type Standard full depth JIS 3 type Standard full depth Standard full depth
Normal pressure angle 1730' 1730' 1730'
Material SCM440 (Alloy steel) SCM440 (Alloy steel) ABC2 (Aluminum bronz)
Heat treatment Teeth induction hardened
after normalizing		 Teeth induction hardened
after normalizing		 -
Surface hardness HRC5055 HRC5055 -
Surface treatment - Black oxide except
ground surfaces 		-
Surface finish Ground Ground Cut
Datum reference surface
for teeth cutting and grinding		 Bore Shaft (ground portion) Bore

W4

W6

H1 HB H5

Module 4 Duplex Worms

Catalog No. Nominal axial
module		 Number of
start		 Hand of
thread		 Bore Hub dia. Pitch dia. Outside dia. Face width Hub width Total length Position of
reference tooth		 Max.allowable
shift		 Duplex module Shape Weight
(kgf)		 Catalog No.
LH7 M N O P Q R S V max. ma/mb
KWGDL4-R1
[ DXF|DWG | 3D CAD]		 4 1 R 28 50 62 70 74 26 100 44 14 3.96/4.04 W4 1.67 KWGDL4-R1
NOTE: V max is the maximum allowable axial movement of worms. Nominal Lead Angle 341'

Module 4 Duplex Worm Shafts

Catalog No. Nominal axial
module		 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 dia. Shaft dia. Position of
reference tooth		 Max.allowable
shift		 Duplex module Shape Weight
(kgf)		 Catalog No.
J K L M N O P Q R S T V max. ma/mb
KWGDLS4-R1
[ DXF|DWG | 3D CAD]		 4 1 R 360 120 16 74 30 120 62 70 50 56 44 14 3.96/4.04 W6 7.4 KWGDLS4-R1
NOTE: The shaft O.D., S, has the tolerance +0.2/+0.1 except where ground the tolerance is +0.40/+0.35.

Module 4 Duplex Worm Gears

Catalog No. Nominal axial
module		 Reduction
ratio		 No. of
teeth		 Number of
start		 Hand of
thread		 Bore Hub dia. Pitch dia. Throat dia. Outside dia. Face width Hub width Total length Web
thickness		 Web O.D Mounting
distance		 Duplex module Shape Allowable
torque (kgfm)		 Allowable
torque (Nm)		 Weight
(kgf)		 Catalog No.
AH7 B C D D' E F G H I J ma/mb Surface
durability		 Surface
durability
AGDL4-20R1
[ DXF|DWG | 3D CAD]
AGDL4-30R1
[ DXF|DWG | 3D CAD]
AGDL4-36R1
[ DXF|DWG | 3D CAD]
AGDL4-40R1
[ DXF|DWG | 3D CAD]
AGDL4-50R1
[ DXF|DWG | 3D CAD]
AGDL4-60R1
[ DXF|DWG | 3D CAD] 		4

4

4

4

4

4		 1/20

1/30

1/36

1/40

1/50

1/60		 20

30

36

40

50

60		 1

1

1

1

1

1		 R

R

R

R

R

R		 20

20

20

20

20

30		 60

65

75

75

90

120		 80

120

144

160

200

240		 88

128

152

168

208

248		 92

132

156

172

212

252		 35

35

35

35

35

35		 20

20

20

20

20

20		 55

55

55

55

55

55		 -

17

17

17

17

17		 -

99

121

137

177

200		 71

91

103

111

131

151		 3.96/4.04

3.96/4.04

3.96/4.04

3.96/4.04

3.96/4.04

3.96/4.04		 H1

HB

HB

HB

HB

H5		 6.92

15.3

21.92

26.91

41.31

58.37		 67.91

150.1

215

263.9

405.1

572.4		 1.92

3.23

4.44

5.2

7.69

11.68		 AGDL4-20R1

AGDL4-30R1

AGDL4-36R1

AGDL4-40R1

AGDL4-50R1

AGDL4-60R1
CAUTION: Duplex worms and worm gears must be mated in a predetermined orientation. Please see the beginning of this section for details.
CAUTION: When duplex worms and worm gears are set at the reference tooth line, the backlash is zero.
CAUTION: Do not take heavy cuts when performing secondary operations on worm shafts to avoid bending them.
NOTE: If the worm and worm wheel are assembled to the standard center distance, it is designated to have a near zero backlash (+/-0.03).
NOTE: When the center distance is moved so as to reduce the backlash, V max is the maximum amount that you may shift without causing problems with gear mesh. It is not the recommended adjustment value.
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.

AGDL4 Allowable Worm Gear Torques(kgfm)

Catalog No. Worms rpm
30
100
300
600
900
1200
1800
AGDL4-20R1
AGDL4-30R1
AGDL4-36R1
AGDL4-40R1
AGDL4-50R1
AGDL4-60R1
13.71
28.97
40.75
49.58
74.94
104.8
11.13
23.81
33.53
40.81
61.73
86.80
8.65
18.75
26.67
32.62
49.76
70.04
6.92
15.30
21.92
26.91
41.31
58.37
6.08
13.50
19.36
23.77
36.76
52.47
5.44
12.02
17.29
21.26
33.01
46.98
4.57
10.27
14,72
18.08
28.02
40.12

 

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