Fine pitch gears and Small gearboxes

GEAR MODIFICATION

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.GEAR MODIFICATION

Reliable service
As a standard gear manufacturer, we have expanded our standard product ranges to about 4,000 items. However, even our diverse product ranges, completely cover all of customer’s demands is not enough, unfortunately. Therefore, we are providing gear modification services. If you can not find gears which you require through our catalog, please consider modification of our standard gears and gearboxes. As a gear manufacturing specialist, we modify gears with our about 60 years experience and knowledge.

Advantages of gear modification
Compared with customized gears, modified gears have some advantages.
・Competitive-price – Especially in small quantities, you will find benefit compared with customized products.
・Shorter lead time – In most cases gear modification offer shorter lead time compared with fully customized products.
・Easy to design – You do not need to calculate gear dimensions by complicated formula.

Example of Modification
You can check the example of Modification through the below table.
Modification of Bore
Modification of Hub
Modification of Side Flank
Modification of Shaft
Modification of Rack Gears
Modification of Gearboxes
Surface Treatment and Heat Treatment


NO MOQ
We offer gear modification service from 1pc. If you require quotation, please inform us of the catalog number and contents of modification through “Request For Quote” page. We may request drawings if the modification is not simple.

NOTES
・Modification of face width of any gears is not available because of generation of burrs. If you require thinner face width gears, please consult with us. We will make a quote as custom gears.
・Accuracy grade of gears may decrease due to modification especially by modification of bore.
・We may not able to modify some items because of its shape, tolerance and accuracy grade.
Before finishing your design, please cunsult with us.
・In case of lack of original standard items, we may take additional lead time to complete modification.
・Please refer to precution of modification below when you modify our standard items by yourself.
 (PDF : “Precaution for modification” for Gear Catalog)


Modification of Bore
Change of Bore
Diameter
PDF : Commonly used fitting tolerances for bore dimensions
Key Way PDF : Parallel key and Key Way
Thread Hole PDF : Metric coarse and Fine screw threads
Key Way and Thread Hole
Counter Bore PDF : Commonly used fitting tolerances for bore dimensions
E ring groove


Modification of Hub
Counter Bore PDF : Commonly used fitting tolerances for bore dimensions
Change of Hub Projection
Change of Hub Diameter PDF : Commonly used fitting tolerances for axis dimensions


Modification of Side flank
Sector shape
Thread holes on side flank PDF : Metric coarse and Fine screw threads
Drill holes on side flank PDF : Commonly used fitting tolerances for bore dimensions


Modification of Shaft
Change of shaft length
Change of shaft diameter PDF : Commonly used fitting tolerances for axis dimensions
Key way PDF : Parallel key and Key Way
D flat
C ring groove
Thread processing PDF : Metric coarse and Fine screw threads


Modification of Rack Gears
Hexagon head bolt PDF : Spot facing and Thread hole for Hexagon socket head cap screws
Thread holes PDF : Metric coarse and Fine screw threads
End processing
Change of
overall length
Division of
Rack Gears


Heat treatment and Surface treatment
Induction Hardening
(C45 gears only)
Available gears
・Spur gears
・Rack gears
・Miter gears
・Bevel gears

PDF : Hardness conversion table
Surface Treatment
(C45 gears only)
Available Surface Treatment
・Electroless Nickel Plating
・Black Oxide
Available gears
・Spur Gears
・Rack Gears (Black Oxyde only)
・Miter Gears
・Bevel Gears
・Worm Gears
・Internal Gears

If you require other kind of surface treatment, please feel free to contact us.


Modification of Gearboxes
Change of shaft
diameter
PDF : Commonly used fitting tolerances for axis dimensions
Change of Shaft
length
Surface treatment Available Surface Treatment on body
・Electroless Nickel Plating
・Anodize Treatment (White)
Surface treatment on other parts such as gears and shafts are also available
Change of material Change of material of inside parts such as gears and bearings are also available
Key way PDF : Parallel key and Key Way
Change of position of input shaft of WS gearbox
PAGETOP
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