Helical gear head GMTK

- General-purpose gear heads for servo applications achieving high economic efficiency and short lead-time.
- The Helical Gear Head GMTK-L is parallel-axis, high-efficiency.
- Compatible with foot mounting, flange mounting and face mounting.
- Output shaft : Solid
- Compatible servo motor : 0.2~2.0kW Reduction ratio : 1/5~1/200
Features
-
・Economical
General-purpose gear heads are designed for servo motors, allowing us to quickly deliver economical products.
-
・High Efficiency
A high-efficiency helical gear is used to maximize the servomotor performance.
-
・Low Noise & Long Life
The reducer unit provides low-noise operation and long service life that were achieved through our years of experience manufacturing gear motors.
-
・Free mounting direction
There are no limitation on the installation angle, such as horizontal, vertical, and tilt.
-
・Output shaft backlash (These are approximate values. )
Units: arcmin Reduction ratio 5~10 15~100 120~200 Angle 70 40 30 ※These values are not guaranteed.
Mounting Type and Output Shaft Rotation Direction
L | U | F |
---|---|---|
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- [Output Shaft Rotation Direction ]
- 2-Stage Type : Same Direction as Input
- 3-Stage Type : Opposite Direction to Input
- [Output Shaft Rotation Direction ]
- 2-Stage Type : Same Direction as Input
- 3-Stage Type : Opposite Direction to Input
Catalogs ・Instruction Manuals
Model No. examples
GMTK | 0738 | U | 30 | - | □□□C |
| Type |
| Size |
| Mounting type |
| Reduction ratio |
| Mount code |
|
L:Foot mount U:Face Mount Type F:Flange mounting |
(Clamp type ) |
■ Tsubaki model No. navigation
Type name
HMTK:Right-angle shaft using a hypoid gear.
GMTK:Parallel shaft using a helical gear.
Size
This indicates the rated input capacity.
Frame number
This indicates the size of the gear reducer. For most models, this is the same value as the output shaft diameter.
This is automatically determined by the motor capacity and reduction ratio.
Mounting type
L:This type is for foot mounting.
U:This type is for face mounting.
F:This type is for flange mounting.
Whether the model comes with a face mount or flange mount will automatically depend on the frame number.
Reduction ratio
This indicates the reduction ratio.
The range is separated into sections that correspond to the frame number.
Shaft Arrangement
For the HMTK Type
No symbol: leave the shaft arrangement symbol blank if you specify hollow type (H) for the mounting code.
S:On this type, the mounting code is for face mount (U), and the solid output shaft protrudes on the mounting surface side.
T:The solid output shaft protrudes on both sides.
For the GMTK Type
No symbol: Leave the shaft arrangement code blank.
Mount code
Specify the mount code that corresponds to the motor to be mounted.
List of Models
※Click the model No. for detailed information. Expand all Collapse all
Rated Input 0.2kW (Model No. GMTK02~)
Rated Input 0.4kW (Model No. GMTK04~)
Rated Input 0.75kW (Model No. GMTK07~)
Rated Input 1.5kW (Model No. GMTK15~)
Rated Input 2.2kW (Model No. GMTK22~)
Motor Mounting Dimension Drawings

Units :mm
Size | Mount code Table of Compatible Motors by Manufacturers |
Motor Mounting Dimensions | |||||||
---|---|---|---|---|---|---|---|---|---|
AD | MA | MB | MC | MD | ML(min) | MS | MT | ||
GMTK02 | E4DC | 65 | □60 | Φ50G7 | M5Depth 12(PCD70) | 5 | 30(25) | Φ8 | M4 |
E4EC | Φ9 | ||||||||
E4HC | Φ14 | ||||||||
G2HC | □80 | Φ70G7 | M6Depth 10(PCD90) | ||||||
GMTK04 | E4HC | 54 | □60 | Φ50G7 | M5Depth 12(PCD70) | 5 | 30(25) | Φ14 | M4 |
G2HC | □80 | Φ70G7 | M6Depth 10(PCD90) | ||||||
GMTK07 | G5KC | 63 | □80 | Φ70G7 | M6Depth 15(PCD90) | 5 | 40(30) | Φ16 | M5 |
G5LC | Φ19 | ||||||||
K2KC | □130 | Φ110G7 | M8Depth 13(PCD145) | Φ16 | |||||
K2LC | Φ19 | ||||||||
K3YC | 81 | M8Depth 16(PCD145) | 8 | 58(40) | Φ24 | ||||
GMTK15 | K3LC | 77 | □130 | Φ110G7 | M8Depth 16(PCD145) | 8 | 58(40) | Φ19 | M5 |
K3MC | Φ22 | ||||||||
K3YC | Φ24 | ||||||||
GMTK22 | L1PC | 121 | □180 | Φ114.3G7 | M12Depth 16(PCD200) | 8 | 80(55) | Φ28 | M6 |
L1RC | Φ35 |
6. Options
Flange
・To convert a face-mount model to flange-mount, use the S flange or M flange. (Both S and M flanges are made of cast iron.)
SFlange :Eccentric type

・Applicable flange code
Reduction ratio | Rated Input | |||
---|---|---|---|---|
0.1kW | 0.2kW | 0.4kW | 0.75kW | |
5 | UFS27 (UFS25) | UFS27 | UFS37 | |
10、15、20、25 | UFS15 (UFS13) | UFS15 (UFS13) | ||
30、40、50 | UFS27 (UFS25) | UFS37 | ||
60、75 | UFS27 (UFS25) | |||
100、120、165、200 | UFS37 |
・The code in parenthesis ( ) is for an S flange that is one frame size smaller.
・Size (Unit: mm), PDF drawings
Flange Code | Cs | E | F | H | R | O | Y | Z | Mass kg |
PDF drawing | Standard Price | Delivery |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UFS13 | 18 | 4 | 12 | 135 | 32 | 125 | 150 | 9 | 1.2 | Contact us for details. | Contact us for details. | |
UFS15 | 20 | 4 | 12 | 150 | 32 | 140 | 170 | 9 | 1.3 | Contact us for details. | Contact us for details. | |
UFS25 | 20 | 4 | 16 | 150 | 41 (32) | 140 | 170 | 9 | 1.4 | Contact us for details. | Contact us for details. | |
UFS27 | 24 | 4 | 16 | 175 | 41 (32) | 165 | 200 | 11 | 2.3 | Contact us for details. | Contact us for details. | |
UFS37 | 24 | 4 | 18 | 175 | 47 | 165 | 200 | 11 | 2.1 | Contact us for details. | Contact us for details. |
・The four bolts are included with the flange.
・The dimensions in parenthesis ( ) apply if the flange is mounted to 0.1kW, 0.2kW motor with a reduction ratio of 1/5.
MFlange :Concentric type

・Applicable flange code
Reduction ratio | Rated Input | ||||
---|---|---|---|---|---|
0.1kW | 0.2kW | 0.4kW | 0.75kW | 1.5kW | |
5 | UFM26 | UFM26 | UFM39 | UFM48 | |
10、15、20、25 | UFM15 | UFM15 | |||
30 | UFM26 | UFM39 | UFM48 | ||
40、50 | |||||
60、75 | UFM26 | ||||
100、120、165、200 | UFM39 | UFM48 |
・Size (Unit: mm), PDF drawings
Flange Code | E | F | H | R | O | Y | Z | Mass kg |
PDF drawing | Standard Price | Delivery |
---|---|---|---|---|---|---|---|---|---|---|---|
UFM15 | 3.5 | 12 | 155 | 32 | 145 | 170 | M10 | 1.4 | Contact us for details. | Contact us for details. | |
UFM26 | 3.5 | 16 | 165 | 41 (32) | 148 | 185 | M12 | 1.7 | Contact us for details. | Contact us for details. | |
UFM39 | 4 | 18 | 190 | 47 | 180 | 215 | M12 | 2.5 | Contact us for details. | Contact us for details. | |
UFM48 | 5 | 26.5 | 280 | 60.5 | 260 | 290 | Φ12 | 7.5 | Contact us for details. | Contact us for details. |
・The four bolts are included with the flange.
・The dimensions in parenthesis ( ) apply if the flange is mounted to 0.1kW, 0.2kW motor with a reduction ratio of 1/5.