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  • Ds Molded Spur Gears
  • Ds Molded Spur Gears
  • Ds Molded Spur Gears

Ds Molded Spur Gears DS0.5-28

4.54 (24)
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Item Feature
Surface Finish
DURACON (M90-44)
Boss Diameter B1 (mm)
Face Width (E)(mm)
Number of Gears
Tolerance A (mm)
-0.05 - 0.1
Boss Length F (mm)
Bore Diameter A (phi mm)
Web Thickness H (mm)
Rim Diameter I (mm)
Surface Hardness
110 - 120HRR
Since it is a molded product, there may be some air bubbles in the materials. Please avoid additional processing.
Accuracy Class
JIS N12 class (JIS B 1702-2: 1998 Old JIS 8th class (JIS B 1702:1976)
Hole Diameter A1 (mm)
Backlash (mm)
0.06 to 0.18 (theoretical value)
Boss Depth J (mm)
Boss Diameter B (mm)
Weight (g)
Standard Diameter C (mm)
Total Length G (mm)
Pressure Angle (Degree)
Tooth Profile
medium grade whelp
Tip Diameter D (mm)
Teeth Cutting Reference Surface
Allowable Torque (N/m [kgf/m])
Bending strength (reference value): 0.3148 (0.0321)
Customer Reviews
5 star 15
4 star 8
3 star 0
2 star 1
1 star 0
Review Rating: 4.54
24 Customer Reviews
The reviews are automatic translation.
Laminator repair
From Japan
On 2019-05-29 22:02:01
Since the gear teeth of the laminator were crushed and no longer driven, the shaft part of the gear purchased this time was processed (5 mm diameter 8 8 mm diameter D cut) and substituted. The width of the teeth was 6 mm and it was just good, but the shaft part had to be machined to 8 mm so the thickness of the shaft part was about 2 mm thinner and it was a bit uneasy about the strength It was driven without problems for some reason. If the thickness of the teeth is 6 mm, it will be fine if there is no such worry even if the hole is made large.
This review is about item#7149746.
For experiments
From Japan
On 2019-03-09 08:14:23
Cost performance is good. It is not the same color as other companies' products.
This review is about item#07149834.
Repair of agricultural machines
From Japan
On 2019-02-28 12:38:09
Used as a flange different from how it is used as a gear. To fix with the shaft, tap the set screw on the hub and fix it. Because it is light load, the price is also good and affordable.
This review is about item#23830467.
Used as a planetary gear for turntable power of a railway model
From Japan
On 2018-11-30 15:45:59
Both vertical and horizontal are usable advertisements with R = 150 mm or more, but lateral direction (with teeth) does not bend easily. On the other hand, it seems that there is no problem even if the radius is 135 mm in the vertical direction. Is there a way to bend in the lateral direction (overheating or processing method)?
This review is about item#7149493.
Used for driving gear of prototype
From Japan
On 2018-08-17 08:51:35
A low price and enough product for prototypes. For amateur's machining, I felt that the gear size is limited to 0.8.
This review is about item#07149597.
I use it as power transmission mechanism
From Japan
On 2018-07-01 20:29:46
I was looking for a part to fit in a small gap but there was something of a good size and I am satisfied
This review is about item#7149572.
Repair of children's toys
From Japan
On 2018-06-04 18:05:40
I used it for repairing Disney Pixar movie Wally's radio controlled toy. Because the final gear about the caterpillar axis broke through the transmission gear from the motor, it got idle. Although the boss length (CAD figure F dimension) was a little long, it was cut a little. The fitting to the axis (dimension A of the CAD figure) is also perfect, and the wally has revived spectacularly. Although the shipping cost 500 yen is high only by this, the result was satisfactory because the result was a great success.
This review is about item#7149712.
I use it as a pinion gear of a compact DC motor.
From Japan
On 2018-04-09 07:53:21
It continues turning for several days with a work rate of about 12 W, but it is still alive. It seems that it can be used as well as brass.
This review is about item#07149493.
It is used for 4 battle gearboxes for battleship Yamato.
From Japan
On 2017-10-03 14:59:26
It is a good product. I would like to use it the next time of creation.
This review is about item#7149292.
Production of model
From Japan
On 2017-06-06 09:02:11
I would appreciate if you could tell me how to easily fix the shaft and gear. (I found it in the catalog collection, but construction is difficult)
This review is about item#7149502.