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

Module 3.5 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
KWGDL3.5-R1
[ DXF| DWG | 3D CAD]		 3.5 1 R 24 44 53 60 62 23 85 37 12 3.465/3.535 W4 1.05 KWGDL3.5-R1
NOTE: V max is the maximum allowable axial movement of worms. Nominal Lead Angle 347'

Module 3.5 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
KWGDLS3.5-R1
[ DXF| DWG | 3D CAD]		 3.5 1 R 330 110 18 62 30 110 53 60 42 48 37 12 3.465/3.535 W6 5 KWGDLS3.5-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 3.5 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
AGDL3.5-20R1
[ DXF| DWG | 3D CAD]
AGDL3.5-30R1
[ DXF| DWG | 3D CAD]
AGDL3.5-36R1
[ DXF| DWG | 3D CAD]
AGDL3.5-40R1
[ DXF| DWG | 3D CAD]
AGDL3.5-50R1
[ DXF| DWG | 3D CAD]
AGDL3.5-60R1
[ DXF|DWG | 3D CAD] 		3.5

3.5

3.5

3.5

3.5

3.5		 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

20		 55

60

70

70

80

90		 70

105

126

140

175

210		 77

112

133

147

182

217		 80.5

115.5

136.5

150.5

185.5

220.5		 32

32

32

32

32

32		 18

18

18

18

18

18		 50

50

50

50

50

50		 -

-

-

15

16

16		 -

-

-

124

155

189		 61.5

79

89.5

96.5

114

131.5		 3.465/3.535

3.465/3.535

3.465/3.535

3.465/3.535

3.465/3.535

3.465/3.535		 H1

H1

H1

HB

HB

HB		 5.14

11.35

16.26

19.96

30.64

43.3		 50.38

111.3

159.5

195.8

300.5

424.6		 1.34

2.73

3.95

3.58

5.44

7.31		 AGDL3.5-20R1

AGDL3.5-30R1

AGDL3.5-36R1

AGDL3.5-40R1

AGDL3.5-50R1

AGDL3.5-60R1
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.

AGDL3.5 Allowable Worm Gear Torques(kgfm)

Catalog No. Worms rpm
30
100
300
600
900
1200
1800
AGDL3.5-20R1
AGDL3.5-30R1
AGDL3.5-36R1
AGDL3.5-40R1
AGDL3.5-50R1
AGDL3.5-60R1
10.04
21.23
29.86
36.32
54.91
76.81
8.19
17.53
24.68
30.03
45.44
63.89
6.38
13.83
19.66
24.05
36.69
51.65
5.14
11.35
16.26
19.96
30.64
43.30
4.51
10.01
14.34
17.61
27.24
38.88
4.08
9.01
12.95
15.93
24.73
35.20
3.43
7.72
11.07
13.59
21.07
30.17

 

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